TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Below you will find brief information for Database Adapter. This guide covers configuration and deployment of the TIBCO ActiveMatrix Adapter for Database, software release 6.2. It details setting up database connections, configuring adapter services (publication, subscription, request-response), using features like the alerter, and deploying the adapter using TIBCO Administrator. The guide also includes troubleshooting FAQs and detailed trace message explanations.
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TIBCO ActiveMatrix
®
Adapter for
Database
Configuration and Deployment
Software Release 6.2
January 2012
Important Information
SOME TIBCO SOFTWARE EMBEDS OR BUNDLES OTHER TIBCO SOFTWARE. USE OF SUCH EMBEDDED OR
BUNDLED TIBCO SOFTWARE IS SOLELY TO ENABLE THE FUNCTIONALITY (OR PROVIDE LIMITED
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SOFTWARE IS NOT LICENSED TO BE USED OR ACCESSED BY ANY OTHER TIBCO SOFTWARE OR FOR ANY
OTHER PURPOSE.
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Database Drivers Supplement, TIBCO Designer, TIBCO Enterprise Message Service, TIBCO Hawk, TIBCO Rendezvous, and TIBCO Runtime Agent are either registered trademarks or trademarks of TIBCO Software Inc. in the United States and/or other countries.
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TIBCO Software Inc. Confidential Information
Contents
Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xv
Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Chapter 2 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
| iii
iv | Contents
Chapter 3 Adapter Instance Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Chapter 4 Adapter Service Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Contents | v
Chapter 5 Deploying and Starting the Adapter Using TIBCO Administrator . . . . . . . . . . . . . . .95
Chapter 6 Using the Alerter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
vi | Contents
Chapter 7 Using the Request-response Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Chapter 8 Working With Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Chapter 9 Advanced Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Contents | vii
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
viii | Contents
Chapter 10 Setting Encoding Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Chapter 11 Monitoring the Adapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Appendix A Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Appendix B Trace Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
Appendix C Adapter Properties File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Contents | ix
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .351
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
x | Contents
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Figures | xi
Figures
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
xii | Figures
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Tables | xiii
Tables
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
xiv | Tables
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Preface
TIBCO ActiveMatrix Adapter for Database software is a bidirectional gateway between databases and applications configured for the TIBCO environment. The software supports both publish-subscribe and request-response interactions.
| xv
Topics
•
Changes from the Previous Release of this Guide, page xvi
•
Related Documentation, page xvii
•
Typographical Conventions, page xviii
•
Connecting with TIBCO Resources, page xxi
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
xvi | Changes from the Previous Release of this Guide
Changes from the Previous Release of this Guide
This section itemizes the major changes from the previous release of this guide.
Support for Teradata Database
Adapter instance configuration and supported data types for the Teradata database have been added. See
JDBC Drivers and URLs on page 42
Runtime Connection Tab on page 45
, and
Database Types on page 161
for more information.
Support for JMS Message Compression
JMS message compression is an instance-level option that ensures messages will take less memory space in storage and be handled faster by the TIBCO Enterprise Message Service server. See
Compressing JMS Messages on page 224
for more information.
Support for RVCMQ Backlog Size Configuration
The RVCMQ scheduler receives inbound messages and assigns them to the worker. The scheduler stores tasks in a message queue. You can limit the maximum size of that queue by either number of bytes or number of messages, or both. See
Configuring RVCMQ
Backlog Size on page 225
Parameterized Destination Name Information
Publishing on parameterized subjects or destinations allows a subject or destination to be created from the contents of one or more table columns. See
Parameterized Subject or
Destination Names on page 168
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Preface | xvii
Related Documentation
This section lists documentation resources you may find useful.
TIBCO ActiveMatrix Adapter for Database Documentation
The following documents form the TIBCO ActiveMatrix Adapter for Database documentation set:
• TIBCO ActiveMatrix Adapter for Database Concepts Read this manual to gain an understanding of adapters in general that you can apply to the various tasks you may undertake.
• TIBCO ActiveMatrix Adapter for Database Installation Read this manual to learn how to install TIBCO ActiveMatrix Adapter for Database.
• TIBCO ActiveMatrix Adapter for Database Configuration and Deployment This manual explains how to create and configure adapter projects. Information on deploying adapter projects is also included.
• TIBCO ActiveMatrix Adapter for Database Examples Read this manual to work through the examples provided with the adapter.
• TIBCO ActiveMatrix Adapter for Database Release Notes Read the release notes for a list of new and changed features. This document also contains lists of known issues and closed issues for this release.
Other TIBCO Product Documentation
You may find it useful to read the documentation for the following TIBCO products:
• TIBCO
®
Adapter SDK
• TIBCO Administrator
™
• TIBCO ActiveMatrix BusinessWorks
™
• TIBCO
®
Database Drivers Supplement
• TIBCO Designer
™
• TIBCO Enterprise Message Service
™
• TIBCO Hawk
®
• TIBCO Rendezvous
®
• TIBCO Runtime Agent
™
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
xviii | Typographical Conventions
Typographical Conventions
The following typographical conventions are used in this manual.
Table 1 General Typographical Conventions
Convention
TIBCO_HOME
TIB_ADADB_HOME
ENV_NAME
CONFIG_HOME
Use
Many TIBCO products must be installed within the same home directory. This directory is referenced in documentation as
TIBCO_HOME
. The default value of
TIBCO_HOME
depends on the operating system. For example, on Windows systems, the default value is
C:\tibco
.
Other TIBCO products are installed into an installation environment. Products installed into different installation environments do not share components.
Incompatible products and multiple instances of the same product must be installed into different installation environments. An installation environment consists of the following properties:
•
Name
Identifies the installation environment. The name is appended to the name of Windows services created by the installer and is a component of the path to the product in the Windows Start > All Programs menu. This directory is referenced in documentation as
ENV_HOME
.
•
Path
The directory into which the product is installed. This directory is referenced in documentation as
TIBCO_HOME
. TIBCO ActiveMatrix Adapter for Database installs into a directory within
TIBCO_HOME
. This directory is referenced in documentation as
TIB_ADADB_HOME
. The default value of
TIB_ADADB_HOME
depends on the operating system. For example, on Unix systems, the default value is
TIBCO_HOME
/adapter/adadb/ version
.
A TIBCO configuration folder stores configuration data generated by TIBCO products. Configuration data can include sample scripts, session data, configured binaries, logs, and so on. This folder is referenced in documentation as
CONFIG_HOME
. The default location of the folder is
USER_HOME
/
ENV_NAME
/tibco/cfgmgmt/ product_name
. For example, on Windows, the default location is
C:\Documents and Settings\ user_name
\Application
Data\
ENV_NAME\ tibco\cfgmgmt\ product_name
.
code font
Code font identifies commands, code examples, filenames, pathnames, and output displayed in a command window. For example:
Use
MyCommand
to start the foo process.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Preface | xix
Table 1 General Typographical Conventions (Cont’d)
Convention bold code font
Use
Bold code font is used in the following ways:
• In procedures, to indicate what a user types. For example: Type admin
.
• In large code samples, to indicate the parts of the sample that are of particular interest.
• In command syntax, to indicate the default parameter for a command. For example, if no parameter is specified,
MyCommand
is enabled:
MyCommand [enable | disable] italic font
Key combinations
Italic font is used in the following ways:
• To indicate a document title. For example: See TIBCO ActiveMatrix
BusinessWorks Concepts.
• To introduce new terms For example: A portal page may contain several portlets. Portlets are mini-applications that run in a portal.
• To indicate a variable in a command or code syntax that you must replace. For example:
MyCommand
PathName
Key name separated by a plus sign indicate keys pressed simultaneously. For example: Ctrl+C.
Key names separated by a comma and space indicate keys pressed one after the other. For example: Esc, Ctrl+Q.
The note icon indicates information that is of special interest or importance, for example, an additional action required only in certain circumstances.
The tip icon indicates an idea that could be useful, for example, a way to apply the information provided in the current section to achieve a specific result.
The warning icon indicates the potential for a damaging situation, for example, data loss or corruption if certain steps are taken or not taken.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
xx | Typographical Conventions
Table 2 Syntax Typographical Conventions
Convention
[ ]
Use
An optional item in a command or code syntax.
For example:
MyCommand [optional_parameter] required_parameter
|
{ }
A logical
OR
that separates multiple items of which only one may be chosen.
For example, you can select only one of the following parameters:
MyCommand para1 | param2 | param3
A logical group of items in a command. Other syntax notations may appear within each logical group.
For example, the following command requires two parameters, which can be either the pair param1
and param2
, or the pair param3
and param4
.
MyCommand {param1 param2} | {param3 param4}
In the next example, the command requires two parameters. The first parameter can be either param1
or param2
and the second can be either param3
or param4
:
MyCommand {param1 | param2} {param3 | param4}
In the next example, the command can accept either two or three parameters. The first parameter must be param1
. You can optionally include param2
as the second parameter. And the last parameter is either param3
or param4
.
MyCommand param1 [param2] {param3 | param4}
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Preface | xxi
Connecting with TIBCO Resources
How to Join TIBCOmmunity
TIBCOmmunity is an online destination for TIBCO customers, partners, and resident experts. It is a place to share and access the collective experience of the TIBCO community. TIBCOmmunity offers forums, blogs, and access to a variety of resources. To register, go to
http://www.tibcommunity.com
.
How to Access TIBCO Documentation
You can access TIBCO documentation here:
http://docs.tibco.com
How to Contact TIBCO Support
For comments or problems with this manual or the software it addresses, contact TIBCO
Support as follows.
• For an overview of TIBCO Support, and information about getting started with
TIBCO Support, visit this site:
http://www.tibco.com/services/support
• If you already have a valid maintenance or support contract, visit this site:
https://support.tibco.com
Entry to this site requires a user name and password. If you do not have a user name, you can request one.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
xxii | Connecting with TIBCO Resources
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Chapter 1
271
Introduction
This book provides information on configuring an adapter instance, using adapter features, and deploying the adapter to the runtime environment.
| 1
Topics
•
Overview, page 2
•
Configuration, page 4
•
Deployment, page 9
•
Adapter Project Lifecycle, page 11
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
2 | Chapter 1 Introduction
Overview
TIBCO ActiveMatrix Adapter for Database software (the adapter) allows data changes in a database to be sent as they occur to other databases and applications. It extends publish-subscribe and request-response technology to databases, making multiple levels of delivery services available to applications that need access to these databases. ODBC and JDBC compliant databases such as Oracle, Sybase, Microsoft SQL Server, MySQL, and Teradata are supported. While the adapter does not run on z/OS and iSeries systems, it can remotely connect to a DB2 database running on these systems.
Features
The following capabilities are described in detail in this manual.
• Automatically publish data when rows in pre-specified database tables are inserted, updated or deleted:
— Publish data by creating a copy (by value). See
Publish by Value on page 73
.
— Publish by reference (publish data directly from the source database table without first copying the data from the source table to a publishing table). See
Publish by
Reference on page 74
— Publish on parameterized subjects or destinations, which allows a subject or destination to be created from the contents of one or more table columns. See
Parameterized Subject or Destination Names on page 164
The subject names mentioned in this document are referred to as subject names when using the TIBCO Rendezvous transport type, but are referred to as destination names when using the JMS (Java Messaging Service) transport type.
— Preregister certified subscribers with a certified publisher. See
Preregistering a
Certified Subscriber on page 167
— Update both parent and child tables within a publication. Both the parent row and all related child rows will be published if the user has set up to publish child data.
See
Adding Child Tables on page 65
.
— Specify that a group of rows fetched from the publishing table is sent in a single message.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Overview | 3
• Automatically subscribe to data and insert, update or delete the data in pre-specified tables in a database:
— Subscribe using wildcard subject names. See
Preregistering a Certified Subscriber on page 167
— Perform batch commits based on message count or time out value. See
Adapter
Instance Tabs on page 34
— Subscribe a group of rows set in a single message. You can configure the adapter to update all rows in a single database transaction by turning on the Enable Group
Message Transaction Support option. See
Subscriber Options Tab on page 82
• Use request-response semantics to publish SQL statements, stored procedures, or both on a specified subject:
— Execute stored procedures with IN parameters, OUT parameters, or both. (Binary
OUT parameters are not supported. This is a limitation of the Oracle ODBC driver.)
See
Oracle REF Data Type Support on page 139
.
• Support RPC (Remote Procedure Calls). The adapter can act as an operation server providing a simple means for a client to execute a single or batch of SQL statements.
See
Request-response Mode on page 114
RPC Mode on page 122
• Change published messages for a publication or subscription service by customizing
the supplied callout library. See
User Callout Library on page 179
.
• Customize adapter behavior to suit your needs:
— Specify relationships between tables, then publish related tables together. See
Tables Tab on page 62
.
— Monitor for database changes using periodic polling or notification by an alerting mechanism. See
Adapter Services Tab on page 43
.
• Rely on standards:
— Connect to multiple database vendors using ODBC or JDBC drivers. See
Design-time Connection Tab on page 37
Table 8, Runtime Connection Tab, on page 41
— Interoperate with other TIBCO products through the use of TIBCO Adapter SDK
Sending Messages to an Adapter Instance on page 170
.
— Monitor your adapter service using TIBCO Hawk software. See
Monitoring Tab on page 55
Chapter 11, Monitoring the Adapter, on page 233
.
— Choose message transports: TIBCO Rendezvous or JMS (Java Messaging
Service).
•
Configure the adapter easily using TIBCO Designer. See
Chapter 3 on page 25
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
4 | Chapter 1 Introduction
Configuration
TIBCO Designer, the design-time component, is an easy-to-use graphic user interface.
The TIBCO ActiveMatrix Adapter for Database palette in TIBCO Designer is used to create adapter instances, configure adapter services, download schemas, and save the resulting configuration in a project.
Before using TIBCO Designer, make sure you read the TIBCO Designer product documentation.
The following figure shows the TIBCO Designer interface.
Figure 1 TIBCO Designer Main Window
Menu bar
Tool bar
Project panel
Design panel
Palette panel
Configuration panel
Project Panel
Each TIBCO Designer window contains one and only one project, which is represented as the root folder in the panel.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Configuration | 5
Projects are the key organizational principle for the configuration information you specify.
A project is a collection of all configured resources. Resources are the components of a project. For example, an adapter publication service is a resource. Resources can be complex and contain other resources, much like a folder can contain other folders on your computer file system. Together, these resources make up your integration project. The top-level (root) folder in the project tree panel represents a project. The top-level folder is initially named
Untitled
and is renamed to the name of the project when you save the project for the first time.
Most adapter resources have context-sensitive help available for the configuration of that resource. Right-click on the resource and choose What Is This? from the popup menu for more information on configuring the resource.
An adapter project contains the following folders:
• AESchemas Folder
The AESchemas folder is the default location for all TIBCO ActiveEnterprise schema files. Each schema file contains a collection of classes, scalars, associations, unions, and sequences.
• Adapter Services Folder
The Adapter Services folder contains services available to the adapter. Most adapters include publication, subscription, request-response, and request-response invocation services.
• Advanced Folder
The Advanced folder contains resources created by TIBCO Designer while the adapter is configured. For example, each time you add a service to an adapter, a session and endpoint are created and stored in the Advanced folder. Other resources such as advanced logging resources are accessed directly from the folder. Adapter developers typically do not access resources in this folder. Most of the adapter configuration is done by changing resources that are available from the Adapter Services folder.
Palette Panel
Palettes organize resources and allow you to add them into your project. Palettes are available from the palette panel in TIBCO Designer. Resources are visible components in a palette. You select resources in the palette panel and drag-and-drop them into the design panel to add them to your project.
Each adapter you install adds one or more palettes during installation. Which palette is displayed depends on the resource selected in the project tree and on your preferences. In the default view, the current selection in the project tree determines which palettes are displayed in the palette panel.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
6 | Chapter 1 Introduction
Design Panel
The design panel displays the current resource selected in the project tree panel. For resources that contain other resources, the contents of the selected resource are shown in the design panel. For example, if you select a folder, its contents are displayed.
Configuration Panel
The configuration panel allows you to specify configuration options for the selected resource. The type and the purpose of the resource determine the contents of the configuration panel. There are usually one or more tabs in the configuration panel that allow you to access the various configuration options. The tabs provide an organization to the options for the resource.
You can click the question mark icon (?) in the top right corner of the configuration panel for online help on the current selection.
For each tab, you must click the Apply button after you have specified configuration information before you can select another tab. If you decide you do not want to add the configuration information, click the Reset button before you apply any changes to return to the previous values for each field in the tab.
Projects
A project is a named collection of data, usually schema data, and configuration data that is persistently stored. Each project is opened and saved in multi-file format, which allows the project to be used with a version control system. It allows different developers to collaborate on a project and merge changes as needed.
When a project is ready to be deployed, it can be created or exported in the following formats:
• Enterprise Archive File
• Local Repository
• Server Repository
• ZIP Archive
Enterprise Archive File
An Enterprise Archive file contains information about the adapter instances and processes you wish to deploy. The format is used by TIBCO Administrator. The EAR file is imported into Administrator where you can deploy, start, and manage the adapter instance on the machines of your choice.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Configuration | 7
Local Repository
A project exported to a local repository is saved in
.dat
format. Projects saved in
.dat
format should only be used for development and testing. The format can be used where data is not shared by more than one adapter. It is possible to have a few local adapters accessing a local project in read-only mode. It is, however, not possible to have more than one local adapter accessing a local project in read and write mode.
Data are loaded at startup for local projects, so a local project has higher memory requirements.
Server Repository
A project exported to a server repository is managed by a TIBCO Administration Server running in a separate process, typically elsewhere on the network. One or more adapters can communicate with a project managed by an Administration Server. Each can support multiple projects.
An Administration Server is identified by a name that must be unique among all administration servers on a network. The server-based mode of operation is scalable and generally recommended for production situations. Server repositories allow multiple simultaneous write operations with locking, automatic updates of clients, and notification.
Data are loaded on demand for server-based projects.
ZIP Archive
A project exported to a ZIP archive is written to the location you specify as a read-only
ZIP file. A project exported as a ZIP archive can be imported into TIBCO Designer.
Version Control
TIBCO Designer allows multiple developers to work on the same project and to use file sharing (locking) or a version control system so that the same resource is not changed by two developers at the same time. Different users can then add resources to the project and lock the parts of the project they are working on.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
8 | Chapter 1 Introduction
TIBCO Designer creates a file that can be shared and locked for each top-level resource, such as an adapter configuration. It does not create a file for each resource. As a result, for example, you can lock an adapter configuration but cannot lock individual adapter services.
When an adapter service is configured, the adapter creates a corresponding set of schema files. A warning is displayed when the files are created advising you to add the files to your version control system. You must add the files to your version control system and ensure they are checked-in, otherwise your project will not be managed correctly by the version control system.
TIBCO Designer also creates folders for folders you create in your project. You can lock each folder as needed.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Deployment | 9
Deployment
After an integration project has been developed and tested, it is necessary to deploy the runtime components to the machines on which they will ultimately run in a production environment. An adapter instance can be deployed, started and managed using TIBCO
Administrator from the Administrator web browser.
Using TIBCO Administrator, you can upload the EAR, deploy the adapter on the machine(s) of your choice, and set runtime options before deployment. Additionally you can start and stop the adapter using TIBCO Administrator.
TIBCO Administrator also provides built-in tools to monitor and manage the adapter.
TIBCO Administrator provides user, resource, and application management modules for adapters.
• User Management. This module allows you to set permissions for adapter users. You define authentication, users and groups, and assign access control lists to users. This includes security for server-based projects at design time and for deployed applications at runtime.
• Resource Management. This module allows you to monitor machines and all running applications in a TIBCO administration domain. Alerts can be created, for example, to notify an administrator if the number of processes or disk usage exceed a certain number.
• Application Management. This module allows you to upload Enterprise Archive
(EAR) files, and create, configure, and deploy adapters. This console is also used to start and stop adapters.
TIBCO Administration Domain
A TIBCO administration domain is installed only if you have also installed the User
Management module.
A TIBCO administration domain is a collection of users, machines, and components that an administration server manages. There is only one Administration Server for each administration domain. Components within an administration domain can communicate with systems outside of the domain, but the domain is the administrative boundary of your enterprise integration project.
.See the TIBCO Administrator product documentation for more information.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
10 | Chapter 1 Introduction
TIBCO Administration Server
The TIBCO Administrator Server provides a central storage and distribution point for configuration data and schema data needed by an adapter. The server is included in both
Administrator editions.
Each administration domain has one and only one TIBCO Administration Server. The
TIBCO Administration Server is the machine process that handles the stored project and requests to manage the TIBCO administration domain.
The TIBCO Administrator Server contains its own web server (Apache Tomcat) that can be accessed via the TIBCO Administrator GUI for configuration and monitoring information.
TIBCO Administrator GUI
You can access the TIBCO Administration Server using the web-based TIBCO
Administrator GUI. The GUI allows you to create users and assign access to projects managed by the Administration Server. You can invoke the GUI from any machine in a
TIBCO administration domain. The next diagram shows the GUI.
Figure 2 TIBCO Administrator GUI
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Adapter Project Lifecycle | 11
Adapter Project Lifecycle
This section describes the high-level steps required to configure and deploy an adapter.
Each of these steps are described in details in subsequent chapters. Adapter projects are configured using TIBCO Designer.
Configuration
Task A Configure the Vendor Application to work with the Adapter
This task is completed as part of installing the adapter and before configuring an adapter instance for the first time.
Task B Define an Adapter Project
When starting TIBCO Designer, you create or select a project. A project contains adapter configuration information, such as the service and messaging transport to use, logging options, and other specific settings. A project is opened and saved in multi-file format, which allows a version control system to manage the files associated with the project.
Adapter Instance Tabs on page 34
Task C Set Global Variables
By default each project you create in TIBCO Designer includes several global variables.
Global variables provide an easy way to set defaults for use throughout your project.
Default values are predefined for some of the variables. You can define additional variables and, optionally, set their values when configuring your adapter.
When the project is deployed and the configured adapters are run, all occurrences of the global variable name are replaced with the global variable value.
A global variable value set in TIBCO Designer can be overridden at runtime by redefining the value in TIBCO Administrator.
Using Global Variables on page 30
Task D Configure an Adapter Service
The adapter supports the following services: publication, subscription, request-response, and request-response invocation.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
12 | Chapter 1 Introduction
Task E Test the Adapter Configuration
The adapter tester can be used to verify an adapter service after it has been configured.
When invoked, all adapter services configured in the project are displayed. You select the adapter service to test, and start and stop the adapter from the tester. The tester window displays adapter output within the tool so you can easily view results.
Deployment
During development, you save your design to a project. When you are ready to deploy your project to a machine, you generate an Enterprise archive file (EAR file) from TIBCO
Designer. The EAR file contains information on what you wish to deploy
Task F Generate and Import an Enterprise Archive File
An Enterprise Archive file contains adapter instance configuration information, which is used by a runtime adapter. An Enterprise Archive file is generated using TIBCO Designer and imported into TIBCO Administrator.
Create an EAR File in TIBCO Designer on page 92
Task G Specify Deployment Information
After importing an Enterprise Archive file, the adapter can be deployed. This involves:
• Assigning adapter services to the machines in the administration domain.
• Specifying startup options for each process engine and adapter service.
Deploy the Project on page 93
for more information.
Task H Specify Monitoring Options
Before starting the adapter you can optionally specify monitoring options, including:
• Specifying alerts or TIBCO Hawk rulebases for each machine.
• Specifying alerts and TIBCO Hawk rulebases for an adapter service.
• Setting log file properties for an adapter service instance.
Task I Start the Adapter
The adapter is started and stopped using the TIBCO Administrator GUI.
Start or Stop the Adapter on page 94
for more information.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Chapter 2
Getting Started
This chapter helps you get familiar with the adapter by walking you through a basic exercise. Work through the exercise to get a hands-on understanding on how the adapter works.
| 13
Topics
•
Overview, page 14
•
Create the Database Tables, page 17
•
Configure the Properties File, page 18
•
Start the Adapter Services, page 20
•
Change the Table Values and Receive Notification, page 21
•
Exit the Query Tool and Adapters, page 23
•
Clean Up, page 24
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
14 | Chapter 2 Getting Started
Overview
In this exercise, you create tables in your database and configure a publisher adapter and a subscriber adapter. Then you modify a table and observe how the publisher adapter and subscriber adapter handle the change and update the subscription table.
Required Platform and Software
This exercise can be performed on any supported operating system, using adapters provided with TIBCO ActiveMatrix Adapter for Database. The exercise can be run using the TIBCO Rendezvous transport method or the JMS transport method.
The exercise can be performed with an Oracle, Microsoft SQL or Sybase database.
A sample DAT file that can be used with an Oracle database,
ADBDemo2-ora.dat
, is included in the
TIB_ADADB_HOME
\ demo\demo2
directory.
Before Starting
Before performing this exercise, make sure that TIBCO ActiveMatrix Adapter for
Database is installed according to the procedures in the TIBCO ActiveMatrix Adapter for
Database Installation.
You should be familiar with using TIBCO Designer to open and close projects and drag and drop resources; see the TIBCO Designer User’s Guide for more information. That document also describes the multi-file format used by TIBCO Designer, and converting to and from the
.dat
file format used by the runtime adapter. The TIBCO Designer User’s
Guide is available from TIBCO Designer by selecting Help > Designer Help.
Tables
The tables are created by running a script specific to your database vendor. The script creates the following tables, all with a common set of columns:
•
Source table
to which you will add new data.
•
Publishing table
to which the new data from the source table is copied using the trigger set on the source table. This table has additional columns (prefixed by
ADB_
) that are used by the adapter.
•
Destination table
that TIBCO ActiveMatrix Adapter for Database will update with the new data.
•
Exception table
to which TIBCO ActiveMatrix Adapter for Database will write any errors that occur during subscription.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Actions
Overview | 15
When you add data to the source table, the following occurs:
1. The insert action fires a trigger and the inserted row is copied to the publishing table.
2. The publisher adapter polls the publishing table to check if any new rows have been inserted. Newly inserted rows are fetched using ODBC, packed into a message, and published.
3. The subscriber adapter listens for messages. When a message arrives, the subscriber adapter inserts it into the destination table using ODBC.
The following diagram illustrates the activity.
Figure 3 Diagram of Publish-Subscribe Steps
Destination
Table
Insert Trigger
Source
Table
Publishing
Table
Adapter
Publisher
Adapter
Subscriber
Exception
Table
Tasks
TIBCO Messaging
This exercise consists of the following tasks:
•
Create the Database Tables, page 17
•
Configure the Properties File, page 18
•
Start the Adapter Services, page 20
•
Change the Table Values and Receive Notification, page 21
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
16 | Chapter 2 Getting Started
•
Exit the Query Tool and Adapters, page 23
•
Clean Up, page 24
Exercise
This exercise uses the Oracle database. You can use the TIBCO Rendezvous or JMS transport. When performing this exercise, use the appropriate transport values for your
Table 3 on page 16
) and follow the instructions that pertain to your particular database vendor.
You will need the following information, specific to your user environment:
• Database user ID
• Database password
• Database service7
The values you will enter for the tables and the publisher and subscriber adapter instances are different, depending on which transport type you are using. (The kind of database you are using does not affect these names.)
Table 3 Values to Use for TIBCO Rendezvous and JMS Transport Types
Item
Source Table
TIBCO Rendezvous
Transport Value
ORDER_TABLE
JMS Transport
Value
ITEM_TABLE
Publishing Table
Destination Table
PUB_ORDER
SUB_ORDER
PUB_ITEM
SUB_ITEM
Exception Table
Publisher Adapter
SUB_ORDER_EXCEP rvpub
Subscriber Adapter rvsub
SUB_ITEM_EXCEP jmspub jmssub
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Create the Database Tables | 17
Create the Database Tables
The first task is to create the database tables.
1. Open a command window and change directory to the demo1
subdirectory. For example:
> cd
TIB_ADADB_HOME
\demo\demo1
2. Execute the demo1_ databaseVendor
.sql
script in the subdirectory to create the tables for your database. Use your environment-specific user ID, password, and database service. For example:
> sqlplus userid
/ password
@ dbService
@demo1_ora.sql
The script creates the items and displays the status. For example:
TIB_ADADB_HOME
\demo\demo1>sqlplus karlh/karlh@ORCL @demo1_ora.sql
SQL*Plus: Release 8.1.7.0.0 - Production on Tue Aug 10 13:10:48 2004
(c) Copyright 2000 Oracle Corporation. All rights reserved.
Connected to:
Personal Oracle8i Release 8.1.7.0.0 - Production
With the Partitioning option
JServer Release 8.1.7.0.0 - Production
Table created.
Table created.
Table created.
Index created.
Index created.
Index created.
Sequence created.
Trigger created.
Table created.
Table created.
Table created.
Table created.
Index created.
Index created.
Sequence created.
Trigger created.
Table created.
Commit complete.
SQL>
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
18 | Chapter 2 Getting Started
Configure the Properties File
After creating the database tables, configure the adapter’s properties file.
1. In the demo1
subdirectory, locate the correct publisher adapter properties file for the transport type you are using. See
Table 3 on page 16
.
2. Open the publisher adapter file and set the following values for your environment.
Property adb.user
username adb.password
adb.dsn
pwd data source
Value
Use the database account name used by the adapter instance.
This is the same username entered during TIBCO
ActiveMatrix Adapter for Database post installation procedure when creating a database account for the adapter.
Use the database account password used by the adapter instance. This is the same password entered during TIBCO
ActiveMatrix Adapter for Database post installation procedure when creating a database account for the adapter.
This password is not saved in the project. The global variable
%%adb.password%%
is saved instead.
Use the name of the ODBC system data source for the adapter.
The data source is configured as a post installation procedure.
See the TIBCO ActiveMatrix Adapter for Database
Installation for more information.
For example:
.
.
TIB_ADADB_HOME
\demo\demo1>write rvpub.tra
#
# Sample ADB properties file
# Optional properties file you can use in place of command line parameters
# Usage: adbagent --propFile propFilename
.
.
.
.
# Change these settings for your login and dsn for Demo1 adb.user karlh adb.password karlh adb.dsn Oracle001
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Configure the Properties File | 19
3. Save and close the publisher adapter file.
4. In the same subdirectory, locate the correct subscriber adapter file for the transport type you are using.
5. Open the subscriber adapter file and repeat the changes you made in
step 2
6. Save and close the subscriber adapter file.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
20 | Chapter 2 Getting Started
Start the Adapter Services
You can use TIBCO Rendezvous or TIBCO Enterprise Message Service as the message transport.
1. If you are using TIBCO Rendezvous transport, skip this step and proceed to
step 2
If you are using JMS transport, open a command window and change directory to the
TIBCO Enterprise Message Service bin
directory and start the server. Note that this step is not required if the server is running as a service on Microsoft Windows. For example: cd
TIBCO_HOME
\ems\bin
> tibemsd
2. Open a new command window and change directory to the adapter bin
directory. For example:
> cd
TIB_ADADB_HOME
\bin
3. In separate command windows, start the publisher and subscriber adapters for your database.
If using TIBCO Rendezvous:
> adbagent --propFile
TIB_ADADB_HOME
\demo\demo1\rvpub.tra
> adbagent --propFile
TIB_ADADB_HOME
\demo\demo1\rvsub.tra
If using TIBCO Enterprise Message Service:
> adbagent --propFile
TIB_ADADB_HOME
\demo\demo1\jmspub.tra
> adbagent --propFile
TIB_ADADB_HOME
\demo\demo1\jmssub.tra
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Change the Table Values and Receive Notification | 21
Change the Table Values and Receive Notification
You must change table setting in your database to trigger a notification.
1. Open a new command window and change directory to the demo1
subdirectory. For example:
> cd
TIB_ADADB_HOME
\demo\demo1
2. Invoke the query tool using the environment-specific user ID, password, and database service specified in
Create the Database Tables, page 17
> sqlplus userid
/ password
@ dbService
3. Insert three values into the source table, then commit the change.
If using TIBCO Rendezvous:
SQL> insert into ORDER_TABLE values(111,'Oak Table',499.95);
SQL> commit;
If using TIBCO Enterprise Message Service:
SQL> insert into ITEM_TABLE values(111,'Oak Table',499.95);
SQL> commit;
You will see the message being sent in the publisher adapter window and, after a short delay, received in the subscriber adapter window.
4. Verify that the row in the source table has been inserted into the destination table.
If using TIBCO Rendezvous:
SQL> select * from ORDER_TABLE;
The following example result confirms that the data has been inserted:
ORDER_ID
----------
ORDER_DESCRIPTION
---------------------------------------------------
ORDER_PRICE
-----------
111
Oak Table
499.95
If using TIBCO Enterprise Message Service:
SQL> select * from ITEM_TABLE;
The following example result confirms that the data has been inserted:
ITEM_ID
----------
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
22 | Chapter 2 Getting Started
ITEM_DESCRIPTION
---------------------------------------------------
ITEM_PRICE
-----------
111
Oak Table
499.95
5. Insert additional rows of data, if you wish. If you do, be aware that the first column
(containing the value
111
in the example) is a primary key and must contain a value that is unique within the table.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Exit the Query Tool and Adapters | 23
Exit the Query Tool and Adapters
After running the example, exit the query tool and adapters.
1. Exit the SQL query tool. For example:
SQL> exit
2. In a command window, use the tibrvsend
application to send a message on the terminate subject to stop each adapter instance:
If using TIBCO Rendezvous: tibrvsend _ADB.rvpub.TERMINATE now tibrvsend _ADB.rvsub.TERMINATE now
If using TIBCO Enterprise Message Service: tibrvsend _ADB.jmspub.TERMINATE now tibrvsend _ADB.jmssub.TERMINATE now
Note that the tibrvsend
program is typically not used to terminate the adapter. Instead, a
JMS program typically sends a JMS message to the JMS termination destination configured for the adapter.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
24 | Chapter 2 Getting Started
Clean Up
This cleanup script removes the example tables that were created by the demo1_cleanup_ databasevendor
.sql
script.
1. In a command window, change directory to the demo1
directory. For example:
> cd
TIB_ADADB_HOME
\demo\demo1\
2. Execute the appropriate demo_cleanup.sql
script in the subdirectory.
> sqlplus userid
/ password
@ dbService
@demo1_cleanup_ databasevendor
.sql
For example:
> sqlplus karlh/karlh@ORCL @demo1_cleanup_ora.sql
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Chapter 3
Adapter Instance Options
This chapter explains how to create an adapter instance by configuring standard settings.
All configuration tasks are performed in TIBCO Designer and the information is stored in a project that is later used by the runtime adapter.
| 25
Topics
•
Overview, page 26
•
Adapter Instance Tabs, page 34
•
Configuration Tab, page 35
•
Design-time Connection Tab, page 37
•
Runtime Connection Tab, page 41
•
Adapter Services Tab, page 43
•
General Tab, page 47
•
Logging Tab, page 49
•
Startup Tab, page 54
•
Monitoring Tab, page 55
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
26 | Chapter 3 Adapter Instance Options
Overview
The adapter instance tabs in TIBCO Designer allow you to create, design, and run an
adapter. Adding services to an adapter is described in
Chapter 4, Adapter Service Options
Please read the following sections before starting to configure an adapter.
•
Configuration Task Sequence, page 26
•
Saving the Project, page 27
•
Testing the Adapter, page 27
•
Notes on Configuring an Adapter, page 27
•
Configuration Recommendations, page 28
•
Changing an Existing Configuration, page 29
Configuration Task Sequence
Use the following sequence to create and configure an adapter service.
1. Start TIBCO Designer and open a multi-file project. See the TIBCO Designer documentation for details.
2. Drag the ActiveDatabase Adapter Configuration icon from the palettes panel to the design panel. This creates an adapter instance named, by default,
ActiveDatabaseAdapterConfiguration
.
3. Define the adapter instance by assigning a new name. See
Configuration Tab on page 35
.
4. Define and test the design-time connection options for the instance. See
Design-time
Connection Tab on page 37
.
5. Either now or when the instance is ready to deploy, define and test the runtime
connection options for the instance. See
Runtime Connection Tab on page 41
.
6. As necessary, modify the following default values for the instance:
— Default startup state and session, metadata search URL: see
Startup Tab on page 54
— Standard, class, and default MicroAgents: see
Monitoring Tab on page 55
Logging Tab on page 49
— Termination subject, encoding, and debugging options: see
General Tab on page 47
— Threads, polling, publishing child data, bulk insert size, TIBCO Rendezvous queue
Adapter Services Tab on page 43
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Overview | 27
7. Add one or more services to the adapter instance by dragging a service icon from the
palettes panel and dropping it in the design panel: see
Chapter 4, Adapter Service
Options
8. Under the service’s Configuration tab, set the combination of options for each service.
This is required.
9. As necessary, define tables, mappings, message and reply subjects, endpoints, and other service options.
10. Save the project as a server repository project.
After configuring the adapter, create the runtime adapter property file and add the project name and adapter instance name.
Also define and test the runtime connection options for the instance if you did not do it
Runtime Connection Tab on page 41
.
Saving the Project
Configuration information for an adapter and all other parameter settings related to the adapter are saved as a project. At any time while configuring the adapter, you can save the associated project. Each time you save a project, any configuration information you have entered is saved as a project.
For detailed steps and more information about exporting or importing projects to different formats (such as
.dat
), see the TIBCO Designer User’s Guide.
Testing the Adapter
You can use the Adapter Tester to verify that an adapter instance is configured correctly.
The tester is invoked from the TIBCO Designer Tools menu and is documented in TIBCO
Designer Palette Reference.
Notes on Configuring an Adapter
Required and Optional Settings
•
You must set the options in the
Configuration Tab
for all adapters.
•
Design-time Connection Tab
options are required before you can start designing the adapter and adding services.
• The remaining tabs are optional, and are customized for your adapter or services only as needed.
You should be aware of the following before starting or configuring an adapter.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
28 | Chapter 3 Adapter Instance Options
• A database account must have been created for running the adapter. For details, see the TIBCO ActiveMatrix Adapter for Database Installation.
• The database server process, and the repository server process if you are using a remote repository, must be running to start an adapter instance.
• Each adapter must have configuration information defined in a project using TIBCO
Designer. For instructions, see
Chapter 3, Adapter Instance Options
.
• Data source connection parameters for an adapter instance can be specified in the adapter properties file and in TIBCO Designer. Values given in the properties file override the same values specified in TIBCO Designer.
• An adapter instance name is defined in TIBCO Designer. Names must be alphanumeric, can contain underscores (_) and hyphens(-), and must be less then 80 characters.
• Multiple subscribers of the same instance should not be configured to listen on the same subject.
• Multiple subscribers in different instances can be configured to listen on the same subject but should not write to the same destination table.
• An adapter instance can be configured as a publisher, subscriber, or both. It can handle request-response operations if it is configured to do so.
• An adapter instance can publish or subscribe to a maximum of 1024 database columns per table. The maximum size of each record is restricted by the number of bytes per row supported by the database server, and the amount of contiguous space in memory available to build the message.
• If an adapter instance cannot access the database at startup, the adapter will not start.
If the connection fails after startup, you can configure the adapter to attempt automatic
Runtime Connection Tab on page 41
). You can also build a
TIBCO Hawk rule to restart the adapter instance after the database is restarted.
• To start or stop an adapter instance see
Start or Stop the Adapter on page 94
• An adapter instance logs error, warning, debug and information messages to the console window by default. Some of the output can be directed to a log file that can be located anywhere on your file system.
• Do not use
ADB_
to prefix columns in the database. The prefix is reserved for this product.
Configuration Recommendations
The following recommendations and limitations apply when using TIBCO ActiveMatrix
Adapter for Database:
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Overview | 29
• The wire format for both the publishing and destination tables must be the same, otherwise an error will occur.
• Publisher and subscriber information should be defined in the same project for all cases. When using parent-child tables or the XML wire format, define the publisher and subscriber in the same repository.
• For the limitations that apply to parameterized subject names and destination names,
Parameterized Subject and Destination Name Restrictions on page 164
Changing an Existing Configuration
You can change an existing adapter instance before or after it is deployed, but doing so may have unintended consequences to the database, the schema, and to other adapter instances associated with the same schema. When making changes, be aware of the following:
• It is recommended to back up your project before making major configuration changes. To back up a project, use TIBCO Designer to export the project. The export file can be imported into TIBCO Designer, if necessary. For more information, see
TIBCO Designer Palette Reference.
• Legitimate changes to the database as a result of adapter instance changes may not be immediately successful, for example, if the database was not available at the time the change was made.
• If you want adapter instance changes to be reflected in the database, make sure the
Deploy On Save checkbox is selected; otherwise, make sure this checkbox is cleared.
This checkbox is on the Configuration tab of the configured adapter resource.
• If you delete an adapter instance or service that is already deployed, the related database will be cleaned up as soon as you confirm the deletion, and the changes will be irreversible.
• If you change an adapter instance or service that is already deployed, the related database will be cleaned up as soon as you re-save the project.
• Deleting an adapter instance deletes all the services included in that configuration.
• When deleting an adapter service, you have the opportunity to save the service’s schema. This is important when another adapter instance is also associated with the same schema.
• If an adapter instance is renamed, the schema associated with that configuration is also renamed, and if another configuration is associated with that same schema, the association will become invalid once the schema is renamed.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
30 | Chapter 3 Adapter Instance Options
If legitimate changes to the database result in error messages while you are trying to save the changes, you may need to run the cleanup script that the adapter creates during the save operation. For more information about these error messages and using the script, see
Using Database Deployment and Cleanup Scripts on page 194
Using Global Variables
The variable substitution mechanism can override global variables predefined in the project in a restricted manner. Predefined variables can be viewed and set in TIBCO
Designer. Variables are specified as
%%VARNAME%%
and cannot contain any white space.
Variable substitution allows you to accomplish the following.
• Substitute string variables specified in the project at startup time.
• Locally define the value for a variable for a specific project. The local value takes precedence over any global value.
• Specify the value for a variable in a properties file. This overrides the project repository and values set in code, but not variables set on the command line.
• Enforce the pre-defined variables listed in
Predefined Global Variables on page 32
.
Variables can be used anywhere in the configuration and will be replaced by the locally-defined adapter instance.
Variable Specification
The adapter can specify variables:
• In the project during configuration using TIBCO Designer.
• In a properties file.
• In TIBCO Administrator Enterprise Edition when deploying the project.
The values in the properties file or Enterprise Edition take precedence over the values set in the project through TIBCO Designer.
Specifying Variables Using TIBCO Designer
Global variables provide an easy way to set defaults for use throughout your project.
For example, you could assign the value 7474 to the predefined global variable
RvDaemon
.
You can then use the variable in different sessions in your adapter. If you wish to change the TIBCO Rendezvous daemon for your adapter, you can globally set it to a different value or override it from the command line.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
To Specify Global Variables:
1. In the project panel, select the
Global Variables
tab.
Overview | 31
The project panel displays all currently defined global variables. You have these choices for modifying global variables:
— To assign or change a variable value, triple-click the variable. The variable expands so you can change either the variable name or the variable value. Press Enter when done.
— To add a new global variable group, click the group icon (on the left below the project panel). Specify the name of the group, then press Enter.
— To add a global variable to the list, click the abc
icon below the project panel. A new global variable item is added to the bottom of the list. Type the variable name and, optionally, the value. Press Enter when done.
— To add a global variable to a group, select the desired group icon and click the abc icon below the project panel.
— Click the pencil icon to open the advanced editor where you can add more information to a global variable.
The global variable is now displayed in the global variables list.
2. When you want to use the global variable in the fields of a resource, enter the variable name surrounded by
%%
on both sides.
When the project is deployed and the configured components are run, all occurrences of the global variable name are replaced with the global variable value (unless it was
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
32 | Chapter 3 Adapter Instance Options overridden in a way that had higher precedence). For example,
RvServiceTest
would be replaced with
7800
.
A number of global variables are predefined. See
Predefined Global Variables
section for information. You may add definitions of any variables you need to the predefined variables.
Predefined Global Variables
The following table lists and explains the predefined global variables. Some global variables are automatically used within the system when an adapter instance is configured.
Table 4 Predefined Global Variables (Sheet 1 of 2)
Variable
Deployment
Description
Defaults to the TIBCO Designer project name. This value can be any string value. This global variable is used by the system to partially define the subject name defined for a service.
DirLedger
DirTrace
Domain
JmsProviderUrl
JmsSslProviderUrl
RemoteRvDaemon
RvDaemon
RvNetwork
Specifies the path name of the TIBCO Rendezvous certified messaging ledger file. The default is the root installation directory.
Specifies the path name for log file used by the adapter. The default is the root installation directory.
The default value for file-based local projects is
Domain
. The value for server-based projects is the domain to which the project was saved.
Tells applications where the JMS daemon is located. Setting this value mostly makes sense in early stages of a project, when only one JMS daemon is used.
Tells applications where the JMS SSL daemon is located.
TIBCO Rendezvous routing daemon ( rvrd
) to be used. See TIBCO
Administrator Server Configuration Guide for details about setting up a domain using rvrd
.
TIBCO Rendezvous daemon. Sessions use this daemon to establish communication. The default value is
7500
.
TIBCO Rendezvous network. This variable need only be set on computers with more than one network interface. If specified, the
TIBCO Rendezvous daemon uses that network for all outbound messages.
In most cases, you can leave the default.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Overview | 33
Table 4 Predefined Global Variables (Sheet 2 of 2)
Variable
RvService
Description
TIBCO Rendezvous service. The TIBCO Rendezvous daemon divides the network into logical partitions. Each transport communicates on a single service. A transport can communicate only on the same service with other transports.
Unless you are using a non-default TIBCO Rendezvous configuration, you should leave the default (7500).
RvaHost
RvaPort
TIBHawkDaemon
TIBHawkNetwork
TIBHawkService
Computer on which the TIBCO Rendezvous agent runs. This variable is only relevant if you are using the TIBCO Rendezvous
Agent ( rva
) instead of the TIBCO Rendezvous daemon, and if you have configured a non-default setup. See TIBCO Rendezvous
Administration for details about specifying the rva parameters.
TCP port where the TIBCO Rendezvous agent (rva) listens for client connection requests. See TIBCO Rendezvous Administration for details about specifying the rva parameters. Defaults to 7501.
TIBCO Rendezvous daemon used in the TIBCO Hawk session.
Specifies which Hawk daemon handles communication for the session. A local daemon is specified by the communications type
(always tcp
) and a socket number. The default configuration uses the local daemon with the TCP socket number 7474.
Specify a remote daemon by inserting its host name or IP address between the tcp
entry and the port number of the daemon parameter, such as tcp:remote_computer:7800.
See the TIBCO Hawk Installation and Configuration manual for details about this parameter.
TIBCO Rendezvous network used by the TIBCO Hawk session.
Specifies which network to use for outbound session communications when a computer is connected to more than one network, and also specifies the multicast groups to use for communication.
See the TIBCO Hawk Installation and Configuration manual for details about this parameter.
TIBCO Rendezvous service used by the TIBCO Hawk session. The
Service parameter specifies which User Datagram Protocol (UDP) service group the TIBCO Rendezvous daemon should use for session communications. The default service port is 7474.
See the TIBCO Hawk Installation and Configuration manual for details about this parameter.
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34 | Chapter 3 Adapter Instance Options
Adapter Instance Tabs
The following tabs are available when configuring an adapter instance.
•
Configuration Tab
•
Design-time Connection Tab
•
Runtime Connection Tab
•
Adapter Services Tab
•
General Tab
•
Logging Tab
•
Startup Tab
•
Monitoring Tab
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Configuration Tab | 35
Configuration Tab
Table 5 Adapter Instance Configuration
Field
Instance Name
Description
This is the name that was specified when creating the adapter configuration.
See
Guidelines for Choosing an Instance Name on page 36 for more information.
Description A short description of the adapter configuration.
Version
You must define the options on the Configuration tab before other options can be
configured. Click Apply to apply the changes before leaving the Configuration tab.
Table
5, Adapter Instance Configuration, on page 35
.
Message Filter
Show All Tabs
Vendor
The version string indicates the TIBCO ActiveEnterprise (AE) configuration format in which the adapter instance is saved. An adapter instance can be saved in AE 4.0, AE 5.0 or AE fro1 format.
When a new adapter instance is created in TIBCO Designer 5.x, the version string is set to
AE Version 5.1
. When a 4.x adapter instance is opened in Designer
5.x, the
Version
field is set to
AE Version 4.0
.
• If a 4.x adapter instance is to be run with a 4.x runtime adapter, the instance must be saved with the
Version
field set to
AE Version 4.0
.
• If you are using TIBCO Designer 5.x to modify 4.x adapter instances, change only features supported by the 4.x. runtime adapter and use the validation utility to verify the instance before deploying the project. Invoke the utility by selecting Project > Validate Project For Deployment in
Designer.
To change versions, click the Change Version button.
Specify a message filter, if you have configured a message filter resource for use with the adapter. The plugin allows you to manipulate incoming and outgoing data before sending it on the network or handing it to the target application. Plugins can be written using the TIBCO Adapter SDK. See the TIBCO Adapter SDK Programmer’s Guide for information about writing a message filter.
Select this box to display additional tabs for configuring advanced options.
Select the database vendor to which the adapter connects. This populates the JDBC
Driver and JDBC URL fields in the Design-time Connection Tab with the appropriate
dat.
In the drop-down list, vendor names enclosed in parenthesis are not supported.
For example Informix and INGRES.
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Table 5 Adapter Instance Configuration (Cont’d)
Field
DB2 AS400 Library
Description
(Appears when DB2 AS400 is selected in the Vendor field.) When this option is selected, the adapter automatically creates an asynchronous queue named
TIBADB
on the AS400 machine. Your programs will be created in
TIBCOSRC
in the library specified in the DB2 AS400 Library field.
You must also set the trigger option under the publication service DB2/AS400
Options tab.
Convert Number Data Type to String
Write to Database on Save
(Appears when Oracle is selected in the Vendor field.) When this option is selected, the adapter will use string operation for number data type at runtime.
Select this box if you want to write configuration settings to the database when this project is saved. This is the default mode.
Guidelines for Choosing an Instance Name
• An instance name must use alphanumeric characters. An underscore (_) character can be used. The entire instance name must be less than 80 characters. The space character cannot be used in an instance name.
• An instance name cannot use global variables.
• An instance name must be unique with respect to other adapter instances for the same adapter in the project. The same instance name can be used to name an adapter instance for a different adapter in the same project. For example, an ADB adapter instance named
TEST
and a Siebel adapter instance named
TEST
can coexist in the same project.
• Each instance name must be unique per adapter within a project even if each instance is defined in a different folder. That is, configuring same-named adapter instances in different folders will not make their names unique.
When you create an adapter instance, the palette automatically creates several resources for it. The names of these resources derive from the name of the instance they belong to.
Changing the adapter instance name results in an automatic regeneration of the resources names. If you manually modify any resource name, that particular name will not be automatically regenerated next time your rename the adapter instance.
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Design-time Connection Tab | 37
Design-time Connection Tab
You must define the JDBC information and database account options in the Design-time
Connection tab before you can design the adapter instance.
After completing these fields, click the Apply button, then click the Test Connection button to establish a connection to the database. When the connection is successful
message appears, click the OK button. You can now begin design-time configuration of the adapter.
Many of the following fields can use global variables. Click the Global Variables tab in the project panel to add or modify a global variable.
Table 6 Design-time Configuration Parameters
Field
JDBC Driver
JDBC URL
Description
The name and URL of the JDBC driver used during design-time configuration. The following table lists all the supported JDBC drivers and their URLs. For detailed parameter descriptions, see your JDBC driver documentation.
See
Table 7, JDBC Drivers and URLs, on page 38 for the supported JDBC Drivers and
the associated URLs
User Name
Password
Remember Password
The database user that the design-time adapter uses to connect to the database.
The password for the database user.
The next time you open this project, the Password field displays the masked password and the adapter will connect to the database without the user needing to know or enter the password.
If this field is not checked, the password must be entered here each time the project is opened. The password is saved in the project file as the global variable
%%adb.password%%
.
This field is not used.
Use Design-time Connection
For Runtime
Test Connection Click this button to test the connection using the specified parameters.
Instead of manually entering the following driver and URL values, you can populate these fields using a connection template or previously-stored connection parameters. For more
Using Connection Settings Templates on page 39
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Table 7 JDBC Drivers and URLs
Database
Oracle
Driver and URL
JDBC Driver: tibcosoftwareinc.jdbc.oracle.OracleDriver
JDBC URL: jdbc:tibcosoftwareinc:oracle:// server_name
: 1521;SID=ORCL
Microsoft SQL
Server
JDBC Driver: tibcosoftwareinc.jdbc.sqlserver.
SQLServerDriver
JDBC URL: jdbc:tibcosoftwareinc:sqlserver:// server_name
:1433;databaseName= database_name
Note: Default port number is 1433.
Sybase
Sybase
Adaptive
Server
Anywhere
MySQL
JDBC Driver: tibcosoftwareinc.jdbc.sybase.SybaseDriver
JDBC URL: jdbc:tibcosoftwareinc:sybase:// server_name
:
5000
Note: Specify a database_name
parameter (as shown in the SQL Server description above) if connecting to a database that is not the default database.
JDBC Driver: com.sybase.jdbc2.jdbc.SybDriver
JDBC URL: jdbc:sybase:Tds:localhost:2638/asademo
JDBC Driver: com.mysql.jdbc.Driver
JDBC URL:
jdbc:mysql:// server_name
:3306/ database_name
Teradata
DB2 OS390
DB2 AS400
JDBC Driver: com.teradata.jdbc.TeraDriver
JDBC URL: jdbc:teradata:// server_name
JDBC Driver: tibcosoftwareinc.jdbc.db2.DB2Driver
JDBC URL: jdbc:tibcosoftwareinc:db2:// server_name
: port
; locationName=
DB2_location_name
;packageName= package_name_prefix
JDBC Driver: com.ibm.as400.access.AS400JDBCDriver
JDBC URL: jdbc:as400:// server_IP
;libraries= lib
DB2 UDB
JDBC Driver: tibcosoftwareinc.jdbc.db2.DB2Driver
JDBC URL: jdbc:tibcosoftwareinc:db2:// server_name
:
50000;databaseName= database_name
;packageName=DEF00
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Design-time Connection Tab | 39
Using Connection Settings Templates
TIBCO ActiveMatrix Adapter for Database provides connection settings templates with
JDBC driver information for each supported database vendor. The templates populate the
JDBC Driver and JDBC URL fields with the default settings as shown above. You then replace the variables with values appropriate for your configuration.
To populate the fields with default values, select ActiveDatabase > Connection templates, then select your database type from the submenu. The following screen sample shows Oracle being selected.
Saving Connection Settings for Reuse
After you have customized the connection settings on this tab for your configuration, you can save them for use in another adapter. You can save as many sets of customized connection parameters as you need. The parameter sets can include the user name and password.
To save a set of connection parameters:
1. Fill in the connection parameters for the adapter.
2. Select ActiveDatabase > Save Connection Settings. The following dialog displays:
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3. Type a name, then click the OK button. The following dialog displays:
4. Click either Yes or No button:
— Yes saves the password in the parameter set. (If the Password field is empty, no password is saved.) When the user selects the parameter set, the Password field will be populated with the current password in clear text, even if the password is not saved in the project file or if it has been obfuscated in the project file.
— No does not save the current password in the parameter set. The user will have to enter it manually.
The connection parameters are saved.
Using Saved Connection Parameters
To use a saved set of connection parameters, select ActiveDatabase > User connections, then select a parameter set from the submenu.
The fields on the
Configuration
and
Connection
tabs are populated with the values stored in the parameter set.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Runtime Connection Tab | 41
Runtime Connection Tab
Table 8 Runtime Connection Tab
Field
ODBC DSN
Description
The name of an ODBC system data source for the database where the source or destination database table resides. The adapter uses this data source to send and receive information. If not specified, the data source name must be given in the adapter’s properties file or on the command line.
User Name
The settings available in the Runtime Connection tab must be configured before you start the runtime adapter.
After configuring these settings, click the Apply button, then click the Test Connection button to establish a connection to the database. When the connection is successful
message appears, click the OK button. The runtime adapter is now configured.
Password
Default Schema
Database Disconnection
Codes
This is the database user that the runtime adapter uses to connect to the database. This field is automatically populated when you select a template as described in
Connection Settings Templates on page 39
. It cannot be changed here.
This is the password for the database user. This field is automatically populated when
you select a template as described in Using Connection Settings Templates on page 39
.
It cannot be changed here.
This is the schema name of the current user. Usually it is the same as the username, but can be different, for example, when using Microsoft SQL Server. For Teradata database, the Default Schema must be the name of the database you want to connect to.
Specify the database disconnection codes provided by your database. Multiple codes can be entered if each is separated by a semi-colon (;). No spaces are allowed between codes.
To populate this field with the default disconnection codes for your database, click
ActiveDatabase > Connection Templates > database_name.
If disconnection codes are not provided and a database operation fails, the adapter issues a test query to verify whether the database connection is valid. If the connection is not valid, the adapter attempts to reconnect and will shutdown if it cannot reconnect. This approach is database independent, but affects performance because the adapter has to send the query and wait for results.
If database disconnection codes are provided in this field, they are stored in a fatal error code dictionary. When a database operation fails, most database systems return an error code to the adapter. The adapter can look up the returned error code in the fatal error code dictionary and determine if the database connection is lost and respond accordingly. This is more efficient then sending the test query.
When using ODBC native driver to reconnect on DB2/UDB, add the database disconnection code
-30081
manually. For Oracle database, the disconnection code is
30046
.
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Table 8 Runtime Connection Tab (Cont’d)
Field
Maximum Number of
Reconnect Attempts
Description
The total number of reconnection attempts to make after the service has been suspended.
When this number is reached, the runtime adapter or adapter service will be stopped.
A value of -1 means reconnection attempts will continue indefinitely.
Number of Reconnect
Attempts Before Suspending
Impacted Service(s)
Specify the number of reconnection attempts to make before suspending the service.
This value is 1 and cannot be changed.
Specify the time interval (in milliseconds) to elapse between each reconnection attempt. Interval between Reconnect
Attempts (milliseconds)
Adapter Termination Criteria
(after max number of reconnect attempts)
Test Connection
The adapter and all of its services is stopped if any one of its services has been unable to re-establish connection after the Maximum Number of Reconnect Attempts has been made. This option cannot be changed.
This option is not used.
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Adapter Services Tab | 43
Adapter Services Tab
You are not required to change any settings in the Adapter Services tab. The settings available in this tab affect all publishers, subscribers, and request-response services defined for the adapter, unless overridden by the individual service configurations as described in
Chapter 4, Adapter Service Options
.
Click the Apply button to apply the changes before leaving this tab.
All Publication Services
The settings available in the All Publication Services panel apply to all Publication services in the adapter.
Table 9 Publication Service Configuration Options
Field
Number of Publication
Service Threads
Description
This field is currently disabled. Threads are allocated on demand. For example, if the adapter instance has only a publication service configured, a publication thread and database connection will be created automatically.
Use Polling Batch Size
Polling Interval
Check this box to activate Polling Batch Size (Maximum Rows). If Polling Batch Size is not active, the adapter picks up all new rows and then tries to send all of them before returning to the event loop. This could affect adapter performance in a high volume environment.
Type a specific polling interval in milliseconds. This is how often an adapter with a publication service checks the publishing table for new rows. The default is 5000, or once every five seconds. Note that if you specify a polling interval of 0, it is assumed that you are using an alerter to manage polling.
Polling Batch Size
(Maximum Rows)
(Only active when Use Polling Batch Size is checked) The maximum number of messages that are picked up per polling interval. The adapter returns to the event loop when it is finished sending those messages. Using this option helps process TIBCO
Rendezvous events in an efficient manner. For example, when polling a large number of rows, the adapter works best if a fixed number of rows is specified in this field.
Batch Publish Status Updates (Only active when Use Polling Batch Size is checked. Do not use this option when messages are published using a parameterized subject name.)
Check this box to optimize publishing performance by batching message status updates to the publishing table.
If an adapter stops before a batch update is performed, the status column is not updated.
As a result, duplicate messages may be published when the adapter is restarted.
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Table 9 Publication Service Configuration Options (Cont’d)
Field Description
Publisher Batch Confirm Size (Applies only to adapters with a publication service that uses certified message delivery.
Do not use this option when messages are published using a parameterized subject name.)
The number of message status updates to include in a single batch.
Entering a value in this field optimizes performance. However, if an adapter stops before a batch update is performed, the status column is not updated. As a result, messages that were successfully published might still have a status of P (pending) in the publishing table when the adapter is restarted. In this case, the ledger file contains the correct status information. Smaller values in this field decrease this risk.
Publisher Batch Confirm
Timeout
Publish Child Data
Polling Commit for DB2
(Applies only to publisher adapters with publications that use certified message delivery.
Do not use this option when messages are published using a parameterized subject name.)
The number of milliseconds to wait before updating the status column. After this interval, an update is performed even if the batch size value is not reached. The default value is 10000 (10 seconds). A value of 0 means that no timeout interval is used.
If an adapter instance stops before a batch update is performed, the status column is not updated. As a result, messages that were successfully published might still have a status of P (pending) in the publishing table when the adapter is restarted. In this case, the ledger file contains the correct status information. Smaller interval values decrease this risk.
This is selected by default. When selected, the parent row and all related child rows is published when a parent row is updated. Upon receipt of such a message, a subscriber adapter updates the parent row and then updates all the child rows with the data that was received in the message.
Any changes to the child tables without a change in the parent table will not be processed. The adapter monitors only the parent table for publishing.
The adapter updates the child rows by deleting all the related child rows, then inserting child rows again based on the data in the received message. For information on adding related tables for a publisher adapter, see
Adding Child Tables on page 65 . For
information on adding related tables for a subscriber adapter, see
Select to enable the adapter publisher to do a commit after selecting query for DB2.
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Adapter Services Tab | 45
All Subscription Services
The settings available in the All Subscription Services panel apply to all subscription services in the adapter.
Table 10 Subscription Service Configuration Options
Field
Number of Subscription
Service Threads
Description
This field is currently disabled. Threads are allocated on demand. For example, if the adapter instance has only a subscription service configured, a subscription thread and database connection will be created automatically.
Subscriber Batch Commit
Size
Subscriber Batch Commit
Timeout (milliseconds)
The number of messages to batch before invoking a commit operation. The default value is 0.
Subscriber Batch Commit option is not supported with RVCMQ Quality of Service. The
RVCMQ scheduler requires a message to be confirmed before dispatching the next message, which prevents the adapter from operating in batch mode.
Specify an interval (in milliseconds) that can expire before confirmation messages regarding successful insertion into the exception table are sent back to the publisher. The default is 1.
The batch commit feature does not commit all received messages if the adapter instance terminates before the batch commit value or time-out value is met.
When using RVCMQ, subscriber batch commit will timeout after each operation
(insert/update/delete) when batch commit size>1.
Subscriber Bulk Insert Size
Rendezvous Maximum
Queue Size
Use Exception Table
All incoming messages to insert are stored until this size is reached. Then, a bulk insert operation is performed on the destination table. This number must be less than or equal to the value in Subscriber Batch Commit Size. The default value is 1.
Maximum number of messages to allow in the TIBCO Rendezvous event queue. The default value is 0, which means no limit is placed on event queue size. Use this option to prevent a subscriber’s memory from overflowing if the publisher is too fast.
Select this box to use an exception table. The exception table is defined when you create a subscription service.
Considerations when using the
Subscriber Bulk Insert Size parameter:
Note the following considerations:
• If any individual messages greater than 32K are published, bulk insert is automatically turned off.
• If an update statement is published while messages are being batched, the bulk insert is performed regardless of whether the size value has been reached. After records have been inserted, the update operation is performed.
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• Do not use this option if LONG, LONG RAW, image, or variable-length BINARY type records are published. These records cannot be bulk inserted into a destination table.
All Request-response Services
The settings available in the All Request-response Services panel apply to all request-response services in the adapter, unless the individual service is configured differently.
Table 11 Request-response Service Configuration Options
Field
Number of Request-Response
Service Threads
Description
Indicate the number of database request-response threads to use. Valid values are from 1 through n. Each thread has a separate connection to the database. Specifying multiple threads allows you to load balance incoming RPC requests.
Request Response max Rows Specify the maximum number of rows to fetch. This can be used limit the memory usage of the adapter. The unfetched rows will be ignored by the adapter.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
General Tab | 47
General Tab
Table 12 General Configuration Options
Field Description
Termination Subject or Topic A message sent on this subject (if TIBCO Rendezvous is the transport) or topic (if JMS is the transport) stops the adapter.
The default termination subject or topic for a project is:
%%Domain%%.%%Deployment%%.adb.%%InstanceId%%.exit
The termination subject for a 4.0 project is shown below. Do not change it.
_ADB.%%InstanceId%%.TERMINATE
See TIBCO Rendezvous Concepts for information about specifying subject names. See the TIBCO Enterprise Message Service User’s Guide for information about publishing on a topic.
JMS Destination Prefix
The General tab allows you to set a termination subject or topic and specify the encoding type, debug level, and verbose mode. Note that the adapter should communicate only with other applications that support the same code pages or Unicode.
Click the Apply button to apply the changes before leaving the General tab.
Adapter Encoding
Specify this prefix if you are using the JMS transport and have selected the
Use Separate
Service Thread
option for a subscription service. The destination prefix is the subject used by the single-threaded subscription service.
By default, the adapter uses a dynamic destination that is generated using the Domain and Deployment global variables, and the adapter instance name. If you use this default dynamic destination, make sure the values for Domain and Deployment are not empty.
You can override the default dynamic destination by specifying the static destination in this field. The static destination must be defined with write permissions on the TIBCO
Enterprise Message Service server before it can be used by the runtime adapter.
Select the encoding from the drop down menu. The adapter may support other encodings
not shown. See Chapter 10, Setting Encoding Options
, for a list of additional encodings that can be typed into this field.
The palette does not validate encoding values that you type into the field. The runtime adapter will throw an error if the encoding value you type is not supported.
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Table 12 General Configuration Options (Cont’d)
Field
Debug Level
Description
This field is valid only when the Debug logging option is selected, as described in
Select how much debugging output to provide at the console window or log file location specified in the
Log File field. The options are:
No debug information
Only SQL commands executed with the database
Only the ODBC data source for each SQL command
All debug information
Generate Verbose Output
Generate Payload on Error
Script File
Alerter Name
This field is valid only when the Information logging option is selected, as described in
Check this box to include verbose output (all available information) at the console window or log file location specified in the
field.
Allows the adapter to log the payload information under Error role when an error occurs.
Allows you to change the location where the SQL script file is written.
The name of the alerter service register in the database.
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Logging Tab | 49
Logging Tab
Table 13 Logging Configuration Options
Field
Use Advanced Logging
Description
When this box is clear, the standard log file is used. This is the default. Fill out the remaining fields on this tab. You do not need to read the rest of this field description.
When this box is selected, you can set two standard output destinations (sinks) for trace messages and set the tracing level for the roles selected. The following sink types are available:
• File
• STDIO
• Hawk
• Network
See
for more information.
Log to Standard I/O
Use the settings available in the Logging tab to configure a log file or log sinks, including which types of trace messages you want logged and where they are sent. Click the Apply button to apply the changes before leaving the Logging tab.
Log File
Log Info/ Debug/ Warning/
Error Messages
When selected, trace messages are displayed in the command prompt window where the adapter is started. This is the same as creating a STDIO sink. When not selected, trace messages do not display in the window.
Specify the name of the log file to which trace messages are written. This is the same as creating a file sink. Global variables can be used to specify the location of the log file.
See
Using Global Variables on page 30 for more information.
Type the name and file system path, or click the Browse button and select an existing log file. If no file name is specified, trace information is not written to a file.
Select the types of trace messages you want logged.
By default all error, warning, debug and information messages are printed in the console window in which the adapter was started. Alternatively, you can specify a log file and path to redirect trace output to a log file located anywhere on your file system. The default log file name is
%%DirTrace%%/%%Deployment%%.%%InstanceId%%.log
, and is saved in the same directory where your project (repository instance) is stored.
Most errors received by the adapter are logged. The only errors that might not be logged are any TIBCO Rendezvous or TIBCO Adapter SDK errors that appear at startup time before tracing can be initialized.
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Logging trace messages is helpful for troubleshooting. There are four levels of trace messages that you can log: Information, Warning, Debug, and Error. Trace messages are
Appendix B, Trace Messages
Logging affects system performance. It is recommended that you use logging only as needed.
Debug messages should not be logged unless requested by the TIBCO Product Support
Group. This option writes a lot of information to the log file and significantly reduces the speed of the adapter.
By default, the Use Advanced Logging checkbox is not checked. In this mode, you configure a standard log file using the fields on this tab, as shown in the example below.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Logging Tab | 51
When you check the Use Advanced Logging checkbox, you configure log sinks using icons in the TIBCO Designer project panel. This gives you complete control on selecting the destinations and associating desired roles with each of the destinations.
Creating Log Sinks
1. Check the Use Advanced Logging checkbox.
2. Click the Apply button.
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3. In the TIBCO Designer project panel, expand the Log Sinks folder under the
Advanced folder.
4. Select an existing log sink or create a new one:
— Select either the fileSink or stdioSink icon.
— Create a new log sink by dragging and dropping the
Generic log sink
icon from the palette panel into the design panel, then assign a type to it from the drop down menu in the configuration panel. Click the Apply button.
5. With the desired log sink icon selected in the design panel, fill in the fields in the configuration panel. You can also change the name and enter a description for each sink by right-clicking on the sink icon in the project panel.
— File sink logs the trace messages to a file. Specify the file limit, file count, and the option to append or overwrite. By default, the file limit is 30000 bytes, the file count is 3, and the mode is append.
— STDIO sink sends trace messages to stdout
or stderr
. By default, stdout
is selected.
— Hawk sink sends each trace message to TIBCO Hawk Monitor or TIBCO Hawk
Display using the Hawk session, which is created by the adapter for monitoring
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Logging Tab | 53 purposes. Specify the
MicroAgent Name
. (For details on Hawk sessions, see
Using
Global Variables on page 30
.)
— Network sink publishes each trace message on TIBCO Rendezvous. Specify the session and the subject on which the trace messages needs to be published.
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Startup Tab
Metadata Search URL
Do not change the settings in the Startup tab. This tab displays the default startup behavior.
Table 14 Startup Options
Field
Show Startup Banner
Description
The startup banner displays the runtime adapter version, the infrastructure version on which the adapter is built, and copyright information in the console window when the adapter is started.
This field is predefined and cannot be changed. It specifies the location where the adapter searches for base schemas. All schemas that have been defined and saved at this location are loaded at startup.
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Monitoring Tab | 55
Monitoring Tab
The settings available in the Monitoring tab do not need to be configured unless TIBCO
Hawk is installed.
You can use microagents to supplement the monitoring information provided by the standard logging capability. Examples of supplemental information that you can obtain with microagents include the repository URL and the command line arguments used to start the adapter.
Click the Apply button to apply the changes before leaving the Monitoring tab.
Chapter 11, Monitoring the Adapter, on page 233
for a list of all supported microagents.
Many of the following fields can use global variables. Click the Global Variables tab in the project panel to add or modify a global variable.
Table 15 Monitoring Configuration Options
Field
Enable Standard Microagent
Description
Allows you to turn on or off the standard TIBCO Hawk Microagent. Clicking the globe icon changes the checkbox to a text field, allowing you to specify a global variable.
When this is a text field, turn the microagent on and off by entering true
or false
.
Standard Microagent Name This is the name for the standard microagent that will be registered with the TIBCO
Hawk system. In most cases the default value is used,
COM.TIBCO.ADAPTER.adb.%%deployment%%.%%InstanceId%%
.
The value for the
%%deployment%%
global variable can be set or modified by selecting the session icon and then clicking the
Global Variables
tab in the project panel.
The
%%InstanceId%%
variable does not need to be set because it is automatically set at run time by the runtime adapter.
Standard Microagent Timeout Specifies the amount of time the Hawk Agent should wait for HMA method invocations to complete before timing them out. The default is 10000 milliseconds. Normally there is no need to change this value, however, on machines under extreme stress where method invocations are timing out, this new option allows the timeout value to be increased.
Enable Class Microagent
Class Microagent Name
Allows you to turn on or off the instance-specific or class-specific standard TIBCO
Hawk Microagent. You can configure how the class microagent is turned on and off in this field: clicking the globe icon changes the checkbox to a a true/false text field.
This is the name for the class microagent that will be registered with the TIBCO Hawk system. In most cases the default value is used,
COM.TIBCO.adb.%%deployment%%.%%InstanceId%%
.
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Table 15 Monitoring Configuration Options (Cont’d)
Field
Class Microagent Timeout
Description
Specifies the amount of time the Hawk Agent should wait for HMA method invocations to complete before timing them out. The default is 10000 milliseconds. Normally there is no need to change this value, however, on machines under extreme stress where method invocations are timing out, this new option allows the timeout value to be increased.
Default Microagent Session This field is predefined and cannot be changed. The session is automatically generated by TIBCO Designer and will be used by the standard, class, and custom microagents.
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Chapter 4
Adapter Service Options
After configuring an adapter instance, select one or more adapter services for the instance.
All configuration tasks are performed in TIBCO Designer.
| 57
Topics
•
Overview, page 58
•
Adding Child Tables, page 65
•
Publication Service Tabs, page 61
•
Subscription Service Tabs, page 77
•
Request-response Service Tabs, page 85
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Overview
The transport type (Rendezvous or JMS) you select for the runtime adapter determines which quality of service, delivery mode, and wire format the service can use. Only options that are compatible with a service’s transport type will be available for selection.
Quality of service, delivery mode, and wire formats are described below.
Quality of Service
This is the level of service that determines how messages are sent.
Possible values are:
• Reliable
(TIBCO Rendezvous transport type only) Reliable message delivery. Ensures that each multicast or broadcast message is received as long as the physical network and packet recipients are working, and that the loss of a message is detected. This choice can compensate for brief network failures because it can retransmit a message on request if the first attempt failed. This choice is appropriate when message delivery is expected but some loss can be tolerated. Messages are received without explicit confirmation.
• Certified
(TIBCO Rendezvous transport type only) Certified message delivery. Offers stronger assurances of message receipt, along with tighter control, greater flexibility and fine-grained reporting. Guarantees that every certified message reaches its intended recipient in the order sent. The message can be sent across network boundaries, and if a network fails, delivery attempts continue until delivery succeeds or until the message's time limit expires.
If certified message delivery is used, data is stored in a ledger file. The size of the ledger depends on several factors, the most important of which is the retention rate of stored data. That is, the ledger grows fastest in response to the cumulative length of undeliverable messages. You must ensure that sufficient disk space is available for the expected size of the ledger.
• Distributed
Queue
(TIBCO Rendezvous transport type only) A distributed queue is a group of cooperating transport objects, each in a separate process. To obtain load balancing among servers, the adapter uses distributed queues for one-of-n delivery of messages to a group of servers. Each member of a distributed queue listens for the same subject using the TIBCO Rendezvous
Distributed Queue
listener objects. Even though many
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Overview | 59 members listen for each inbound message (or task), only one member processes the message. For details on distributed queues, see TIBCO Rendezvous Concepts.
See
Load Balancing Across Adapter Instances on page 134
ActiveEnterprise Concepts for more information.
• Transactional
This option is no longer supported. The option is only included for backward compatibility.
Delivery Mode
(JMS transport type only) The method of delivery for a JMS message. The semantics for these fields are somewhat more complex than the explanation given here. See TIBCO
Enterprise Message Service User’s Guide for more information.
• Persistent
In general, a message marked persistent will be available to a JMS client even if the
TIBCO Enterprise Message Service server goes down. Persistent messages are held in secondary storage in the server and have guaranteed delivery when sent to a topic that has durable subscribers. (If a topic has no durable subscribers, there are no subscribers that need messages resent in the event of a server failure and therefore messages do not need to be saved.) Performance is improved because disk I/O is not required.
• Non-Persistent
A message marked non persistent will not be available to a JMS client if the TIBCO
Enterprise Message Service server goes down. These messages are never written to persistent storage.
• Durable
(Topic only) Specify the subscriber as durable subscriber of the topic. Messages for durable subscriptions are stored on the server as long as durable subscribers exist for the topic.
• Non-Durable
(Topic only) Specify the subscriber as non-durable subscriber of a topic. Non-durable subscribers only receive messages when they are active. If messages arrive on the topic when the subscriber is not available, the subscriber does not receive those messages.
Wire Formats
Services must use the same wire format to exchange data.
• Rendezvous Message (TIBCO Rendezvous transport type only)
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A self-describing wire format used by TIBCO Rendezvous applications. Control information for validation is not sent in the message. If you use this format, the adapter is compatible with adapters not developed with TIBCO Adapter SDK.
• XML Message (TIBCO Rendezvous and JMS transport types)
The
XML Message
wire format conforms to specifically constructed and fully compliant
XML Schema (XSD) based on the existing definition of the TIBCO ActiveEnterprise schema.
• ActiveEnterprise Message (TIBCO Rendezvous transport type only)
An externally-described XML wire format supported by the TIBCO Adapter SDK.
Control information for validation is sent in the message. If no control information is included, an exception is returned to the subscriber. TIBCO ActiveEnterprise standard wire format provides class information and packing rules for the TIBCO Adapter
SDK set of data types. This format allows TIBCO ActiveEnterprise components to perform extra validation on messages sent or received.
See TIBCO Adapter SDK Programmer’s Guide for details about the control information generated and sent with TIBCO ActiveEnterprise messages.
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Publication Service Tabs
When running as a publisher, the adapter extracts data from the changed rows from database tables and publishes them on appropriate subject names.
You can configure parameters under the following tabs:
•
Configuration Tab on page 61
•
Tables Tab on page 62
•
Child Table Order By Tab on page 70
•
DB2/OS390 Tab on page 68
•
DB2/AS400 Tab on page 69
•
Publisher Options Tab on page 72
•
Advanced Tab on page 75
Configuration Tab
The wire format for the publication and subscription services must be the same, otherwise an error will occur.
Table 16 Publication Service: Configuration Tab
Field
Name
Description
You can use the default name or replace it with a name of your choice.
Transport Type Select the transport type (JMS or TIBCO Rendezvous) to be used by the runtime adapter. This selection determines which options appear in the rest of the Configuration tab.
The transport can be configured to use a trusted store and identity resource for use in SSL (Secure
Sockets Layer) configurations. TIBCO Rendezvous sessions and JMS topics have an SSL configuration field which uses a dialog to perform SSL configuration.
To enable and configure SSL, in the Project panel, expand the Advanced folder, then expand the
Sessions folder. Select the TIBCO Rendezvous session or JMS topic and click Use SSL?. The SSL configuration options are explained in the online help associated with the session dialog. Click the question mark to display the online help.
Quality of Service (Only available when TIBCO Rendezvous is selected as the transport type) Select the level of
service that determines how messages are sent. See Quality of Service on page 58 for a description
of these options.
• Reliable
• Certified
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Table 16 Publication Service: Configuration Tab (Cont’d)
Field
Wire Format
Description
The wire format in which data will be sent. Note that the wire format for both the publisher and subscriber must be the same, otherwise an error will occur. See
description of these formats.
• ActiveEnterprise Message (TIBCO Rendezvous transport type only)
• Rendezvous Message (TIBCO Rendezvous transport type only)
• XML Message
Connection
Factory Type
Delivery Mode
(Only available when JMS is selected as the transport type) Connection Factory objects create JMS connections for sending and receiving messages. Available choices are:
• Topic
Publish-subscribe messaging. A message published to a topic is broadcast to one or more subscribers. All messages published to the topic are received by all services that have subscribed to the topic.
• Queue
Point-to-point messaging. A message sent to a queue is consumed by one and only one receiver.
Each message has only one receiver though multiple receivers may connect to the queue. The first receiver to access the queue gets the message. The other receivers do not.
(Only available when JMS is selected as the transport type) The delivery mode for each message sending operation. See
for a description of each mode.
• Persistent
• Non-persistent
Note the following restrictions:
• A service name must use alphanumeric characters. An underscore (_) character can be used. The entire instance name must be less than 80 characters. The space character cannot be used in an instance name.
• A service name cannot use global variables.
Tables Tab
You must set publisher table options before configuring other publisher options.
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Source table names can be qualified with a database user name. To access tables in other schemas, the database user specified in the
Design-time Connection Tab on page 37
tab
must have the proper set of permissions granted. This is described in
Referencing an
External Schema on page 64
If a primary key is not defined for a table, the update and delete triggers will not be
generated for the table. To define a primary key for the table, select the
User Key
column in a table row. The update and delete triggers will then be defined.
Icons
• Add Table — Click to display a dialog box that list tables available to the database user specified in the adapter Connection tab. Select the source table to publish from when data is inserted into it.
• Add Child Table — Displays a dialog box from which a secondary table can be added to the configuration.
• Add Table from Other Schema — Allows you to add a table from a different schema than the current database user schema. For instructions on granting access privileges to an external schema, see
Referencing an External Schema on page 64
.
You can use this icon to add different schema at the parent and child levels.
• Remove Table — Deletes the selected table from the list.
• Re-find Tables from Database — Causes TIBCO Designer to refresh stored table schema information by retrieving new information from the database.
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• Load Table Schema from Database — Allows you to load a database table schema, convert it into a TIBCO ActiveEnterprise schema, and store it in the schema folder of an instance.
Allow Key Columns Only
When this box is checked, child columns are joined only to a key column. When unchecked, child columns can be joined to any column.
Select/Deselect All Columns to Publish
When this box is checked, all of the boxes in the Use column are checked, so all columns in the tables are published. Unchecking this box unselects all of the columns. You can also individually check and uncheck the Use? checkboxes.
Table 17 Publication Service Tables Tab
Field
Tables and
Columns
Description
The loaded tables and columns.
indicates a table or child table.
indicates a normal column.
indicates a
Type
AE Type
User Key
Update Trigger
Use?
Join To
The primitive type.
The primitive type mapped to an TIBCO ActiveEnterprise type.
Click to define the column as a user key.
Check the box to fire a trigger when an UPDATE statement changes a value in the column.
Click to publish this column when data is changed.
The name of a parent table column to join to for parent-child relationships.
Referencing an External Schema
To reference an external schema in TIBCO Designer, the default schema must have the proper access privileges. These are set in a command line. In the following syntax, adb_schema
refers to the default schema in create_user.sql
.
For Oracle, log in as system
and grant create any trigger
and drop any trigger
permissions to the default schema. For example: grant create any trigger to adb_schema grant drop any trigger to adb_schema
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In addition, Oracle and Sybase users must have permission to
SELECT
from a source table in an external schema. If table relationships are used,
SELECT
permission is required for both parent and child tables.
SELECT
,
INSERT
,
UPDATE
, and
DELETE
permissions are required for accessing a destination table in an external schema.
For Sybase, execute the following before creating catalog tables for the external schema: sp_role "grant", sa_role, adb_schema
For SQL Server 7.0 and 2000, log in as sa
and then execute the following before creating catalog tables for the external schema: use master
EXEC sp_addsrvrolemember ' adb_schema
', 'sysadmin'
For DB2 on AS400 you can avoid table access problems by changing the ActiveDatabase user authority to *ALLOBJ.
Adding Child Tables
This section describes how to add a related child table definition for publishing data.
Data models typically contain tables that share column data through a relationship. You can configure a publishing table to include related data from another table when it publishes. Data from the related table is not copied into the publishing table, but is fetched by reference.
When rows are inserted into the publishing table, a message that includes data from the source table and related (child) table is published. On the subscriber side, a corresponding table with the same columns as the child table associated with the publishing table must be specified.
Adding child tables requires two separate procedures, one for the publisher adapter and another for the subscriber. First, you add child tables for the source table, then you add child tables for the destination table.
The database schema must be the same for all tables, but the table names can be different.
If the child table associated with the publishing table and the child table associated with the destination table have different names, you must set a mapping between the child tables.
The following restrictions apply to parent and child tables:
• The child table in the source database and child table in the destination database must have the same columns.
• When parent-child relationships are defined, a subscriber adapter must use the same repository as the publisher adapter.
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When you add a child table, TIBCO Designer creates a class object in the repository for the child table, and an association object for the relationship.
To enable publishing child table related data, the publisher adapter properties file must have the adb.publishChildData
option set to on
.
After adding child tables for a subscriber adapter, you create mappings between child tables on the publisher side and child tables on the subscriber side. For instructions, see
Child Table Mappings Tab on page 80
.
To add child tables for parent-child relationships, do the following in the Publication
Service
Tables Tab
1. Click the name of the parent table to select it.
2. Click the Add Child Table icon. The Add Table dialog displays.
3. Select the related child table from the list and click the OK button.
4. Repeat the above steps to add more child tables.
When all of the child tables are added, you then designate a foreign key column as a key in each child table so that a relationship to the parent table can be defined.
5. Click the User Key checkbox for the foreign key column in the child table to select it.
A key icon displays next to the column name.
You must also specify the relationship between the primary column in the parent table and the foreign key column in the child table.
6. Click in the
Join To
field for the child table column, and select the name of the parent table primary key column from the drop-down list.
7. Click the Apply button.
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In the following example, a publication service that publishes newly inserted rows into the
Publisher Options Tab on page 72
publisher adapter to publish data by value or by reference.
In the following example, a subscription is created such that received data will be inserted into the
SUB_ORDER_DETAILS
destination table. All three columns of the destination table are configured to receive data.
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The following example shows a child table mapped. The left column (
Subscriber Child Table
Name
) contains the subscriber child table and the right column (
Publisher Child Table Name
) contains the publisher child table.
DB2/OS390 Tab
This tab appears when the Vendor field in the Adapter Instance
Configuration Tab
DB2 OS390
.
When the DB2 load utility loads rows to the source table, it does not activate the table’s
INSERT triggers. Loaded data is not published.
Table 18 Publication Service DB2/OS390 Tab
Field
Database Name
Description
Enter the name of the database that you want to put your publisher table in.
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Table 18 Publication Service DB2/OS390 Tab (Cont’d)
Field
Table Space
Name
Description
Enter the name of the table space where the publisher table is located.
Storage Group Optional. Enter the designator of the storage group that will hold the publisher table indexes.
Buffer Pool
Index Suffix
Trigger Suffix
Optional. Enter the name of the buffer pool to be used for indexes.
Enter a suffix of your choice, up to 13 characters, that the adapter will append to each of the indexes
(
IDX1_
,
IDX2_
, and
IDX3_
).
Enter a suffix of your choice, up to 5 characters, that adapter software will append to each of the triggers (
T1
,
T2
, and
T3
).
DB2/AS400 Tab
This tab appears when the Vendor field in the Adapter Instance Configuration Tab is set to
DB2 AS400.
Trigger Option
• Synchronous (deprecated) — The trigger is written in RPG. When copying from the source table to the publishing table, the prompt is not returned until all data is written.
• Asynchronous — When copying from the source table, data is inserted into a data queue and then inserted into the publishing table asynchronously. The prompt is not blocked, so you can continue working while data is inserted into the publishing table.
Specify values for the following options:
— Number of DataQueue Listeners: The number of prestarted listener jobs.
— Listener Job Queue: The name of the queue on the AS/400 machine where the listener jobs are submitted.
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If you select Asynchronous, you must go to the adapter’s Design-time Connection tab and add
;transaction isolation level=none
to the end of the JDBC URL field. For example:
• SQL — The trigger is written in SQL. When copying from the source table to the publishing table, the prompt is not returned until all data is written.
Sybase Options
This tab appears when the Vendor field in the Adapter Instance Configuration Tab is set to
Sybase.
Check the Overwrite Triggers? checkbox to delete and re-create existing triggers of the publishing table.
Child Table Order By Tab
This tab allows you to specify the column(s) of an Order By Clause used for each children table queries. The adapter will return the child table result set in a particular sequence.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Click on a child table name and click the Select Column button.
Publication Service Tabs | 71
The Select Child Table Order By Columns dialog box appears.
Select the column(s) for the Order By Clause from the left panel and click the Apply button. Use the Up and Down buttons to arrange the column order by sequence. To sort in descending value, select the check box next to the column name.
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Publisher Options Tab
When you add a new publishing table, a new entry is inserted into the repository for the publisher adapter. The entry includes the name of a publishing table along with a sequence, stored procedure, and trigger. A class object for the publication is created in the repository.
Table 19 Publication Service DB2/AS400 Options Tab
Field
Storage Mode
Description
For each publisher service, you must specify a Storage Mode: Publish by Value or Publish by
Reference. See Publish by Value on page 73
and
Publish by Reference on page 74 for more
information.
• Publish by Value copies all specified columns in the source table to the publishing table.
• Publish by Reference copies only key column values to the publishing table. If no key column is defined in the database, a substitute non-key column must be defined to publish by reference.
Publishing Table
Update Mode
Enable Loop
Detection
Name of the database table used to store a copy of data to be published. The table name can be qualified using the schema.table_name format. The publishing table cannot contain any user-created columns where the column name starts with
ADB_
. These characters are reserved for use by the adapter.
A common practice is to use the publishing table name prefixed by
P_
. For example, if your source table is
MY_ORDER
, its publishing table should be named
P_MY_ORDER
.
A publishing table name must be less than 64 characters.
Select the method by which tables are updated.
Update updates a row in the destination table only if the row exists.
Upsert updates a row in the destination table if the row exists. If no such row exists, it performs an insert.
Select to enable loop detection and prevent an infinite loop from occurring when the publishing and destination table are the same table. Loop detection is disabled for DB2 on z/OS because of DB2 on z/OS feature limitations.
Do Not Generate
Triggers
Use Alerter
Enable Group
Messaging
Group Size
Select to prevent the generation of triggers. Although this option is not recommended, it allows you to manually manage the insertion of data into the publishing table.
for details.
Select to use group messaging. Note that Rendezvous message wire format does not apply for group message.
Appears only when the Enable Group Messaging is checked. Specify the number of rows to publish in a single message.
Global variables are acceptable.
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Table 19 Publication Service DB2/AS400 Options Tab (Cont’d)
Field
Enable Load
Balancing
Description
Check to use load balancing which enables multiple publisher endpoints to poll and publish changes of the same source (publisher) table. Set batch polling size before selecting this option.
Mutex Name Appears only when the Enable Load Balancing checkbox is checked. Specify the name for the mutex table.
Publish by Value
With Publish by Value, all specified columns in the source table are copied to the publishing table. Publishing by value is fast, but does not support some data types, for example Oracle LONG and LONG RAW.
Note the following restrictions on publishing tables when you publish by value:
• Publishing tables cannot contain columns with LONG data types. If you have a source table that contains a column with a LONG data type, that column cannot be specified for inclusion in the publishing table. This is because the trigger generated by the palette cannot to the LONG column via the
:new
construct.
This is an Oracle restriction documented in the Oracle SQL Reference manual. The problem is not detected by Oracle during trigger creation. However, when the trigger fires and it attempts to copy the LONG column value to the publishing table, the database connection will hang for some time and then eventually terminate.
• If you define parent-child relationships between tables, the publishing table that is created for a parent table should not contain a column with a LONG data type.
However, a child table can contain a column with a LONG data type. This is because data on child table rows is not copied using the
:new
construct.
• LONG RAW data is not allowed in the publishing table.
These restrictions do not apply to publishing tables when you publish by reference and
LONG or LONG RAW are non-key types.
In the following example, the publishing table
P_CUSTOMER
is created for the source table,
CUSTOMER
. When
CUSTOMER
is updated, the new data will be copied to
P_CUSTOMER
. The adapter will poll
P_CUSTOMER
and publish the new data.
In this example, loop detection is enabled. If a subscription exists that uses the same subject and
CUSTOMER
as the destination table, any changes to
CUSTOMER
will not be published repeatedly.
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Publish by Reference
With Publish by Reference, only key column values are copied to the publishing table. The publish by reference feature allows you to publish data directly from the source table without first copying the data from the source table to a publishing table. A trigger, stored procedure, and publishing table are created, but the publishing table contains the necessary adapter fields and only the key fields of the source table. For more information, see
Start or Stop the Adapter on page 94
The advantage of publishing by reference is that the data to be published is stored just once. Also, data types such as Oracle LONG and LONG RAW are supported for publishing by reference.
A key column or substitute key column is required when publishing by reference, since the publishing table contains only key values. If no column is specified, the publication is not added.
To use a view or other database object as the source table, you can configure the adapter to publish by reference object, where key columns are stored in the publishing table and data to publish is selected from the reference object. For details, see
Publishing by Reference
Object on page 171
.
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In the following example, the publisher adapter is configured to publish from the
P_CUSTOMER
table with a key field
CUST_ID
. The publishing table is created with the necessary fields and the
CUST_ID
field. When a row in the
P_CUSTOMER
table is modified, the trigger fires, populating fields and copying the
CUST_ID
value to the publishing table.
When the adapter polls the publishing table, it detects the new row and selects from the
P_CUSTOMER
table using the
CUST_ID
value found in the publishing table. Then the message is published.
Advanced Tab
This tab allows you to specify values for the following fields:
Table 20 Publication Service Advanced Tab
Field
Destination
Description
(Only available when JMS is selected as the transport type in the Adapter Instance
)
The publisher destination. A service uses a default destination generated using the
Domain
and
Deployment
global variables, the adapter acronym, the adapter instance name and the service name. If you use this default destination, make sure the values for
Domain
and
Deployment
are not empty.
Alternatively, you can manually enter a destination in this field. The destination does not have to be predefined in the TIBCO Enterprise Message Service server. The destination can be static or dynamic.
See
Subject and Destination Names on page 163 for information about specifying destinations.
See TIBCO Enterprise Message Service User’s Guide for more details about destinations.
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Table 20 Publication Service Advanced Tab (Cont’d)
Field
Message Subject
Description
(Only available when TIBCO Rendezvous is selected as the transport type in the Adapter Instance
)
Publisher subject. By default, a service uses a message subject that is generated using the Domain and Deployment global variables, the adapter acronym, the adapter instance name and the service name. If you use this default subject, make sure the values for Domain and Deployment are not empty. You can type a TIBCO Rendezvous subject name different from the default in this field.
See
Subject and Destination Names on page 163 for information about specifying subjects.
See TIBCO Rendezvous Concepts for more details about subjects.
Endpoint
Reference
Class Reference
Displays the endpoint reference. Click the Browse icon to change the endpoint reference, the Go To icon to reconfigure the existing reference, or the Delete icon to delete the reference. Endpoint reference objects are explained in TIBCO Designer Palette Reference.
Click the Go To icon to reconfigure the existing reference.
Clear reference
can be used to remove the reference under Endpoint Reference. Class reference objects are explained in TIBCO Designer
Palette Reference.
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Subscription Service Tabs
When running as a subscriber, the adapter listens on a subject, receives messages and updates the relevant tables in its associated database. The data is then available to other applications that have access to the database.
You can configure parameters under the following tabs:
•
Configuration Tab on page 77
•
Table Tab on page 78
•
Child Table Mappings Tab on page 80
•
Child Exception Table Mappings Tab on page 81
•
Subscriber Options Tab on page 82
•
Advanced Tab on page 84
Configuration Tab
This tab allows you to specify values for the following fields:
Table 21 Subscription Service Configuration Tab
Field
Name
Description
Type a name unique among all subscribers defined for this project. You can use the default name or replace it with a name of your choice.
A service name must use alphanumeric characters, including underscore (_). You cannot use a blank space. The entire instance name must be less than 80 characters.
A service name cannot use global variables.
Transport Select the transport type (JMS or TIBCO Rendezvous) to be used by the runtime adapter. This selection determines which options appear in the rest of the Configuration tab.
The transport can be configured to use a trusted store and identity resource for use in SSL (Secure
Sockets Layer) configurations. TIBCO Rendezvous sessions and JMS topics have an SSL configuration field which uses a dialog to perform SSL configuration.
To enable and configure SSL, in the
Project
panel, expand the
Advanced
folder, then expand the
Sessions
folder. Select the TIBCO Rendezvous session or JMS topic and click Use SSL?. The SSL configuration options are explained in the online help associated with the session dialog. Click the question mark to display the online help.
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Table 21 Subscription Service Configuration Tab (Cont’d)
Field Description
Quality of Service Only available when TIBCO Rendezvous is selected as the transport type) Select the level of service that determines how messages are sent. See
for a description of these options.
• Certified
• Reliable
• Distributed Queue
Wire Format
Connection
Factory Type
Delivery Mode
The wire format in which data will be sent. Note that the wire format for both the publisher and subscriber must be the same, otherwise an error will occur. See
description of these formats.
• Rendezvous Message (TIBCO Rendezvous only)
• XML Message (TIBCO Rendezvous or JMS)
• ActiveEnterprise Message (TIBCO Rendezvous only)
Connection Factory objects create JMS connections for sending and receiving messages.
• Topic (JMS only)
A message published to a topic is broadcast to one or more subscribers. All messages published to the topic are received by all services that have subscribed to the topic. This messaging model is known as publish-subscribe.
• Queue (JMS only)
A message sent to a queue is consumed by one and only one receiver. Each message has only one receiver though multiple receivers may connect to the queue. The first receiver to access the queue gets the message. The other receivers do not. This messaging model is known as point-to-point.
(Only available when JMS is the transport type and Topic is the connection factory type) The
delivery mode for each message sending operation. See Delivery Mode on page 59
for a description of each mode.
• Persistent
• Non-Persistent
Table Tab
You must set subscriber table options before configuring other subscriber options.
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An incoming message need not contain data for all the columns defined in the subscriber table. An adapter can be configured to expect only a subset of the columns. The adapter checks the repository for attributes defined in the subscriber table's class object definition.
When a message arrives, the adapter iterates through the attributes in the subscriber table’s class object definition and looks for those same attributes in the incoming message.
Subscriber table names can be qualified with a schema name, such as
SCOTT.EMP
. To access tables in other schemas, the database user defined in the adapter
Connection
tab must have the proper set of permissions granted. For more information see TIBCO ActiveMatrix
Adapter for Database Concepts.
When configuring the destination table, subscribe only to columns that should be updated.
If you subscribe to a column that should not be updated and a message arrives with no data for that column, a
NULL
will be written to that column. For example:
• If a source table is configured to send data for columns, c1
, c2
and c3
and the destination table is configured to receive data for columns c1
, c2
, c3
, c4
, and c5
:
— For the
TIBCO Rendezvous message
wire format, columns c1
, c2
, and c3
will get the data and columns c4 and c5 will get a
NULL
value.
— For the
TIBCO ActiveEnterprise message
and
XML message
wire format, columns c4
and c5 will be ignored and take on whatever default values they are supposed to have.
• If a source table is configured to send data for columns, c1
, c2
, and c3
and the destination table is configured to receive data for columns c1
, c2
, and c3
but not configured to receive data for columns c4
and c5
, columns c4
and c5
will retain the defaults applicable to both tables.
When the publisher table is configured to use parent-child relationships, the subscriber adapter must use the same repository as the publisher adapter.
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Icons
Add Table — Click to display a dialog box that list tables available to the database user specified in the adapter Connection tab. Select the table to be used as the subscription table where data is inserted when received.
Add Child Tabl e
— Displays a dialog box from which a secondary table can be added to the configuration.
Add Table from Other Schema — Allows you to enter a schema. For instructions
on granting access privileges to an external schema, see
Referencing an External
Schema on page 64
.
Remove Table — Deletes the selected table from the configuration.
Re-find Table from Database — Causes TIBCO Designer to refresh stored table schema information by retrieving new information from the database.
Allow Key Columns Only — If selected, child columns are joined only to a key colulmn. If unselected, child columns can be joined to any column.
Columns
Tables and Columns — Lists the table and columns.
Type — Lists the primitive type.
AE Type — Lists the primitive type mapped to an TIBCO ActiveEnterprise type.
User Key — Click to define as a user key.
Use? — Click to enable the column to be updated when a message arrives. Subscribe only to columns that should be updated. Columns not configured to receive data will retain their default value. For columns that have been configured to receive data but do not get updated:
— In the TIBCO Rendezvous wire format, the columns get a
NULL
value.
— In the TIBCO ActiveEnterprise and XML wire formats, the columns are ignored in the statement.
Join To — Joins two tables.
Child Table Mappings Tab
Child tables between a publisher and subscriber must be mapped unless the tables have the same name.
These options are only active when child tables have been specified on the
Table Tab
.
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The following example shows a child table mapped. The left column (Subscriber Child
Table Name) contains the subscriber child table and the right column (Publisher Child
Table Name) contains the publisher child table.
This tab allows you to specify values for the following fields:
Table 22 Subscription Service Child Table Mappings Tab
Field
Subscriber Child
Table Name
Description
Displays the child tables that can be mapped. Entries are automatically created when you add child tables for a subscription service.
Publisher Child
Table Name
Click in this column and type the name of a publisher child table. Prefix the table name with a database user if your database requires it.
Child Exception Table Mappings Tab
Each child table can be configured to use an exception table.
These options are only active when child tables have been specified on the
Table Tab
.
This tab allows you to specify values for the following fields:
Table 23 Subscription Service Child Exception Table Mappings Tab
Field
Subscriber Child
Table Name
Description
The child tables that can be mapped. Entries are automatically created when you add child tables for a subscription service.
Publisher Child
Table Name
Click in this column and type the name of a exception child table. Prefix the exception table name with a database user if your database requires it.
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Subscriber Options for DB2 on OS/390 (z/OS)
This tab appears when the Vendor field in the Adapter Instance
Configuration Tab
DB2 OS390.
Table 24 Subsciption Service DB2/390 Options Tab
Field
Database Name
Description
Enter the name of the database that you want to put your exception table in.
Table Space
Name
LOB Table Space
Name
Enter the name of the table space where the exception table is located.
The name of the LOB table space name where auxiliary table of the opaque exception table is located.
Subscriber Options Tab
This tab allows you to specify values for the following:
Table 25 Subscription Service Subscriber Options Tab
Field
Exceptions Table
Description
Name of exception table where data is written if the adapter cannot write to the subscriber table.
This table will hold messages that caused an exception. If the table does not exist, the subscription
service creates it. For details, see Exception Table on page 149
.
The exception table cannot contain any user-created columns where the column name starts with
ADB_
. These characters are reserved for use by the adapter.
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Table 25 Subscription Service Subscriber Options Tab (Cont’d)
Field
Use Opaque
Exceptions Table
Description
Check the checkbox to use an opaque exceptions table. The table records each message (entirely) into a column, along with the error message. A message is logged in the exceptions table if the subscription service fails to generate records in the destination table or the adapter fails to insert a message into an exception table.
For DB2/OS390 databases, you must create a Large Objects (LOB) tablespace before using the opaque exceptions table, which will use the LOB tablespace.
The name for the opaque exceptions table. Opaque
Exceptions Table
Pre Commit
Stored Procedure
Reply Sender
Quality of Service
The value entered here represents the name of a stored procedure the subscriber will call after the database insert, update, or delete and prior to commit.
If the subscriber must send a reply to the sender, this value identifies the quality of service or
delivery mode to use when sending the reply. See Quality of Service on page 58
and Delivery Mode on page 59 for a description of these fields.
• Reliable (TIBCO Rendezvous transport type only)
• Certified (TIBCO Rendezvous transport type only)
• Persistent (JMS transport type only)
• Non-persistent (JMS transport type only)
Use Separate
Service Thread
When selected, a new session is created and the service endpoint is moved to this session. The subscriber batch commit count towards the number of messages processed by all the endpoints of each session. You can select other subscription service sessions by changing the session reference field (under the Advanced tab). This allow multiple services to share the same session and dispatcher.
When selected, the group message will be processed within a single transaction by the subscription service. The adapter will either commit the whole message changes to the database, or none.
Enable Group
Message
Transaction
Support
Service Bulk
Insert Size
You can set a different bulk insert size for this service. If not set, the service will use the bulk insert size of adapter instance options.
If you are using the JMS transport, you must set the JMS Destination Prefix. See
JMS
Destination Prefix on page 47
for details.
Note that:
• All subscription service threads reconnect separately if the database connection is lost.
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• TIBCO Hawk statistics display all subscription service thread information and operation count.
• Debug messages provide the subscription service thread name in order to distinguish which message is from which subscription service thread.
• If a subscription service thread encounter fatal errors such as failed to rollback transaction or failed to update the exception table, the adapter terminates.
• At startup the subscription service dispatchers wait for all component to start before dispatching subscriber messages.
Advanced Tab
This tab allows you to specify values for the following:
Table 26 Subscription Service Advanced Tab
Field
Destination
Description
(JMS transport type only)
The subscriber destination. A service uses a default destination generated using the
Domain
and
Deployment
global variables, the adapter acronym, the adapter instance name and the service name. If you use this default destination, make sure the values for
Domain
and
Deployment
are not empty.
Alternatively, you can manually enter a destination in this field. The destination does not have to be predefined in the TIBCO Enterprise Message Service server. The destination can be static or dynamic.
See
Subject and Destination Names on page 163 for information about specifying destinations.
See TIBCO Enterprise Message Service User’s Guide for more details about destinations.
Message Subject
Endpoint
Reference
(TIBCO Rendezvous transport type only)
By default a service uses a message subject that is generated using the
Domain
and
Deployment
global variables, the adapter acronym, the adapter instance name and the service name. If you use this default subject, make sure the values for
Domain
and
Deployment
are not empty. You can type a
TIBCO Rendezvous subject name different from the default in this field.
See
Subject and Destination Names on page 163 for information about specifying subjects.
See TIBCO Rendezvous Concepts for more details about subjects.
Displays the endpoint reference. Click the Browse icon to change the endpoint reference or the Go
To icon to reconfigure the existing reference. You can also click the Delete icon to remove the reference. Endpoint reference objects are explained in TIBCO Designer Palette Reference.
Class Reference Click the Go To icon to reconfigure the existing reference. Class reference objects are explained in
TIBCO Designer Palette Reference.
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Request-response Service Tabs
This service is often called a Request Reply Server or RPC (Remote Procedural Call)
Server. When running as a request-response service, the adapter receives requests from other applications, parses them, calls the appropriate component interface API to set the input fields, then calls another set of component interface APIs to get the output fields.
The output fields are wrapped in a schema and sent back to the caller.
A request-response service is renamed
ADBServer
when you drag its icon into the design panel. Configuration involves specifying its name, quality of service and wire format. A server operation allows the adapter to process requests from client applications and return results in a response to the client.
When using the RPC server, you can configure custom operations. These are configured under the
Call Operation Tab
You can configure parameters under the following tabs:
•
Configuration Tab on page 85
•
Call Operation Tab on page 87
•
Advanced Tab on page 88
Configuration Tab
This tab allows you to specify values for the following fields:
Table 27 Request-response Service Configuration Tab (Sheet 1 of 3)
Field
Name
Description
Type a name unique among all request-response services defined for this project. You can use the default name or replace it with a name of your choice.
A service name must use alphanumeric characters, including underscore (_). You cannot use a blank space. The entire instance name must be less than 80 characters.
A service name cannot use global variables.
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Table 27 Request-response Service Configuration Tab (Sheet 2 of 3)
Field
Transport Type
Description
Select the transport type (JMS or TIBCO Rendezvous) to be used by the runtime adapter. This selection determines which options appear in the rest of the Configuration tab. Only the options that are available with the selected Transport Type, Connection Factory Type, Mode or Wire Format are displayed.
The transport can be configured to use a trusted store and identity resource for use in SSL (Secure
Sockets Layer) configurations. TIBCO Rendezvous sessions and JMS topics have an SSL configuration field which uses a dialog to perform SSL configuration.
To enable and configure SSL, in the Project panel, expand the
Advanced
folder, then expand the
Sessions
folder. Select the TIBCO Rendezvous session or JMS topic and click
Use SSL?
. The SSL configuration options are explained in the online help associated with the session dialog. Click the question mark to display the online help.
Quality of Service Only available when TIBCO Rendezvous is selected as the transport type) Select the level of service that determines how messages are sent. See
for a description of these options.
• Certified
• Reliable
• Distributed Queue
Wire Format The wire format in which data will be sent. Note that the wire format for both the publisher and subscriber must be the same, otherwise an error will occur. See
description of these formats.
• Rendezvous Message (TIBCO Rendezvous only)
• XML Message (TIBCO Rendezvous or JMS)
• ActiveEnterprise Message (TIBCO Rendezvous only)
Connection
Factory Type
Connection Factory objects create JMS connections for sending and receiving messages.
• Topic (JMS only)
A message published to a topic is broadcast to one or more subscribers. All messages published to the topic are received by all services that have subscribed to the topic. This messaging model is known as publish-subscribe.
• Queue (JMS only)
A message sent to a queue is consumed by one and only one receiver. Each message has only one receiver though multiple receivers may connect to the queue. The first receiver to access the queue gets the message. The other receivers do not. This messaging model is known as point-to-point.
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Table 27 Request-response Service Configuration Tab (Sheet 3 of 3)
Field
Delivery Mode
Description
(Only available when JMS is the transport type) The delivery mode for each message sending
operation. See Delivery Mode on page 59 for a description of each mode.
• Durable
• Non-Durable
Mode
Use Custom
Operations
Specify if this endpoint will be a Request Reply Server or RPC (Remote Procedural Call) Server.
• Request Reply: A subscriber endpoint will be created. This subscriber will listen to request and publish the reply to the reply subject.
• RPC: A server endpoint will be created. This server will receive a request from and send back the reply to the client.
This checkbox appears when the
Mode
field is set to
RPC
. Selecting this checkbox and clicking the
Apply button creates the
Call Operation Tab
This tab appears when the mode is set to RPC and the
Use Custom Operations
checked in the Request-Response Service Configuration tab.
Click the New button to enter data into the fields. After making changes, click the Apply button.
TIBCO Designer retrieves the signature of each stored procedure and function from the database.
If you change the stored procedure or database connection while editing your project, you must return to this dialog and click the Refresh button to retrieve the changes from the database.
This tab allows you to specify values for the following:
Table 28 Request-response Call Operation Tab
Field
Name
Description
Enter a unique name for the call operation.
Catalog/Package (Optional, only applicable to databases that have more than one catalog or package.) The catalog or package in which the procedure resides. This name is used to resolve naming conflicts if more than one catalog or package in the database has the selected procedure with the same name. See your database documentation for more information about catalogs and packages.
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Table 28 Request-response Call Operation Tab (Cont’d)
Field
Schema
Description
(Optional) The schema in which the procedure resides. This name is used to resolve naming conflicts if more than one schema in the database has the selected procedure with the same name.
Procedure Name Name of the database procedure or function to call.
Select Procedure
Maximum Rows
One Way
Queries the database for available procedures or functions or the Procedure Name field. Clicking this button displays a dialog showing the available procedure.
To select a procedure or function:
1. Select a call operation from the list on the left. Its input and output parameters, if any, are displayed in the fields on the right side of the dialog.
2. Click Select Procedure.
(Optional) The maximum number of rows to retrieve.
(Optional) Check this checkbox if you want to execute this procedure using a one-way operation. If left unchecked, the procedure will execute using a two-way operation.
Advanced Tab
This tab allows you to specify values for the following:
Table 29 Request-response Service Advanced Tab
Field
Destination
Description
(
JMS
transport type only)
The subscriber destination. A service uses a default destination generated using the
Domain
and
Deployment
global variables, the adapter acronym, the adapter instance name and the service name. If you use this default destination, make sure the values for
Domain
and
Deployment
are not empty.
Alternatively, you can manually enter a destination in this field. The destination does not have to be predefined in the TIBCO Enterprise Message Service server. The destination can be static or dynamic.
See
Subject and Destination Names on page 163 for information about specifying destinations.
See TIBCO Enterprise Message Service User’s Guide for more details about destinations.
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Request-response Service Tabs | 89
Table 29 Request-response Service Advanced Tab (Cont’d)
Field
Message Subject
Description
(TIBCO Rendezvous transport type only)
By default a service uses a message subject that is generated using the
Domain
and
Deployment
global variables, the adapter acronym, the adapter instance name and the service name. If you use this default subject, make sure the values for
Domain
and
Deployment
are not empty. You can type a
TIBCO Rendezvous subject name different from the default in this field.
See
Subject and Destination Names on page 163 for information about specifying subjects.
See TIBCO Rendezvous Concepts for more details about subjects.
Reply Subject
Endpoint
Reference
Type a TIBCO Rendezvous subject name that the adapter uses to respond, if no response subject is specified in the request message.
Displays the endpoint reference. Click the Browse icon to change the endpoint reference or the Go
To icon to reconfigure the existing reference. You can also click the Delete icon to remove the reference. Endpoint reference objects are explained in TIBCO Designer Palette Reference.
Class Reference Click the Go To icon to reconfigure the existing reference. Class reference objects are explained in
TIBCO Designer Palette Reference.
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TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Chapter 5
Deploying and Starting the Adapter Using
TIBCO Administrator
| 91
This chapter provides an overview about deploying, starting, stopping, and monitoring adapter services using the TIBCO Administrator web interface.
Topics
•
Create an EAR File in TIBCO Designer, page 92
•
Deploy the Project, page 93
•
Start or Stop the Adapter, page 94
•
Monitor the Adapter, page 95
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Create an EAR File in TIBCO Designer
Generate an Enterprise Archive file (EAR) that contains information about the adapter services to deploy.
The EAR file contains information on what you wish to deploy. This could be one or more adapter services, one or more TIBCO ActiveMatrix BusinessWorks process engines, or both.
Building an archive creates the EAR file, which you can then deploy from TIBCO
Administrator. If you make changes to the business processes or adapter services included in the archive, you need to rebuild the archive. Saving the project does not affect the archive.
In TIBCO Designer, follow these steps to create an EAR:
1. Configure the adapter services.
2. Drag and drop the Enterprise Archive resource from the palette panel to the design panel.
If there are any configured adapter services in your project, an Adapter Archive resource becomes available in the palette panel.
3. Drag the Adapter Archive into the design panel and specify information in the
Configuration tab.
4. Click the Apply button.
5. Go to the Enterprise Archive and click Build Archive to create the archive file.
See Also
See TIBCO Designer User’s Guide for more information about this procedure. The guide is available from the Designer Help menu.
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Deploy the Project
Before deploying a project, the machine on which the adapter is installed must be part of a
TIBCO administration domain. After you have installed the TIBCO Administration
Server, any machine on which you install TIBCO Runtime Agent (required by an adapter) can be added to the administration domain. The TIBCO software installed on the machine is then visible and accessible via the TIBCO Administrator GUI.
When you deploy a project, startup scripts and other information about the different components are sent to the machines to which the components were assigned. The project data store and TIBCO Administration Server are updated with the deployed components.
To deploy a project:
1. Import the EAR file into TIBCO Administrator.
2. Assign adapter archives in the EAR file to adapters installed in the administration domain and likewise assign process archives to process engines.
3. Specify startup options for each adapter service.
Password Handling
At design time, the adapter uses a password to connect to the backend application and fetch metadata. At runtime, the adapter uses a password to connect to the back-end application and interoperate with it. If you create a 4.x configuration using TIBCO
Designer 5.1, and use the configuration with a 4.x adapter version, some special considerations are required for security.
When deploying the adapter check the
Service
property of the global variable in the global variables section, then go to the Advanced tab of the adapter archive and set the password value under the
Runtime Variables
section.
Do not set the password to type
Password
in the global variables section for adapter configurations that are set to AE Version 4.0 or
AE Version 5.0
(in the Configuration tab
Version field) or any intermediate version.
See Also
See TIBCO Administrator User’s Guide for an introduction to the TIBCO administration domain and detailed information about the above steps.
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Start or Stop the Adapter
The TIBCO Administrator
Application Management
module allows you to start, and stop deployed applications.
To start an adapter service from the module:
1. In the Administrator GUI left pane, expand Application Management > application_name > Service Instances.
2. In the Service Instance panel, select the checkbox next to the adapter service.
3. Click the Start Selected button.
The status changes from
Stopped
to
Starting up
to
Started
.
4. To stop the adapter service, click the Stop Selected button.
See Also
See TIBCO Administrator User’s Guide for more information.
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Monitor the Adapter
TIBCO Administrator offers a number of monitoring options.
• Specify alerts and TIBCO Hawk rulebases for each machine in the domain.
• Specify alerts and Hawk rulebases for each adapter service.
• View the log for each adapter service.
See Also
See TIBCO Administrator User’s Guide for information about configuring the above monitoring options.
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TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Chapter 6
Using the Alerter
This chapter explains how to configure and start an alerter for each supported database.
| 97
Topics
•
Introduction, page 98
•
Setting Up and Starting the Alerter on Oracle or Microsoft SQL Server 2005 and
Above, page 99
•
Setting Up and Starting the Alerter on Microsoft SQL Server 2000, page 103
•
Setting Up and Starting the Alerter on Sybase SQL Server, page 106
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Introduction
The alerter process is used to asynchronously notify running publication service instances of database changes. The adapter does not need to poll its publishing table for existence of new rows. Use the alerter only when database changes are infrequent.
The procedures can be executed on the SQL command line or through any supported
Application Programming Interfaces (the procedures cannot be invoked successfully from within a trigger). The procedures commit the inserts into the database table and notify the adapter of the commit.
Because the alerter process runs with a database instance, not user schema, an adapter instance cannot poll the publishing table name for just one user schema. For example, if the same publishing table exists for two user schemas and two instances are monitoring the same publication table, each instance with a different user, both instances will check the same publication table whenever the alerter checks for changes in the publication table.
The alerter is available on the following databases.
Oracle and Microsoft SQL Server 2005
An alerter for Oracle is part of the adapter and available on all operating systems supported by the adapter. The alerter can be used in the TIBCO ActiveMatrix Adapter for
Database environment in cases where changes are infrequent and polling by the publication service would result in unnecessary and expensive operations. The alerter is supported on both the Rendezvous and JMS transports.
Microsoft SQL Server 2000
An alerter function for Microsoft SQL Server is available on all operating systems supported by the adapter. The procedures are executed on the SQL command line itself, and there is no separate program. The alerter functionality is embedded in a dynamic linked library. The alerter is only supported on the Rendezvous transport.
Sybase SQL Server
An alerter function for Sybase SQL Server is available on Microsoft Windows along with
Solaris. The procedures are executed on the SQL command line itself, and there is no separate program. The alerter functionality is embedded in a dynamic linked library. The alerter is only supported on the Rendezvous transport.
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Setting Up and Starting the Alerter on Oracle or Microsoft SQL
Server 2005 and Above
The alerter on Oracle uses the Oracle AQ package and on MS SQLServer 2005 and above uses the Service Broker component to send and receive information between sessions, asynchronously allowing two or more sessions in the same database instance to communicate.
The Microsoft SQL Server mentioned below in this section refers to version 2005 and above.
As shown in the following figure, when a source table is updated with data and the commit_and_notify
procedure executed, a trigger copies the data to the publishing table and notifies the Oracle AQ or MS SQLServer and that a publishing table has changed. The alerter gets the notification from Oracle AQ or MS SQLServer and sends a notification message to the adapter that a publishing table has changed. The adapter then queries all its configured publishing tables for the new data and sends it on a subject to the TIBCO transport. One or more instances can be notified.
Figure 4 Alerter Operation (Oracle and MSSQLServer)
If there are multiple publishing tables under the same database account, you can use the commit_and_notify_table
procedure to specify that only a particular table be checked by the adapter. This prevents the adapter from needlessly checking all its publishing tables for updates when only one table has been updated with new data. This notification can be sent to one or more instances.
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Name adb_alerter_qtbl
(Oracle only)
The following object types and stored procedures are available for committing messages when the alerter is used:
Type
AQ queue table adb_alerter_q
(Oracle only) adb_alerter_typ adb_alerter_contract
(Microsoft SQL Server 2005 only) instance_Id_q
(Microsoft SQL Server 2005 only) instance_Id_send_service
(Microsoft SQL Server 2005 only) instance_Id_rcv_service
(Microsoft SQL Server 2005 only) adb_alerter_typ commit_and_notify commit_and_notify_agent alerter_name
AQ queue
Service Broker
Message Type
Service Broker
Contract
Service Broker
Queue
Service Broker
Service
Service Broker
Service
Object
Procedure
Procedure commit_and_notify_table table_name Procedure stop_alerter stop_alerter_agent alerter_name
Procedure
Procedure config_alerter cleanup_alerter listen_pipe
Procedure
Procedure
Procedure
Description
Queue table for all alerters.
Queue for all alerters.
Object type for all messages.
The contract type used. The contract specifies the message types that can be used.
Created by the config_alerter stored procedure.
Created by the config_alerter stored procedure.
Created by the config_alerter stored procedure.
Object type for the payload message.
Sends a change notification to all adapters.
Sends a change notification to the named alerter.
Sends a change notification for a named table.
Stops all running alerters.
Stops the alerter for the named alerter.
Alerter call to register itself as an AQ subscriber.
Alerter call to unregister itself as an AQ subscriber.
Alerter call to block on alerts.
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Before Starting
When using the alerter functionality with Oracle database, make sure you have executed the create_user.sql
and alerter.sql
files with the database account used by the adapter, as described in Post-Installation Tasks in TIBCO ActiveMatrix Adapter for Database
Installation.
When using the alerter functionality with Microsoft SQL Server database, make sure you have enabled the service broker functionality in the database server. To check if the service broker is enabled, execute:
SELECT is_broker_enabled FROM sys.databases WHERE database_id = DB_ID()
The returned value should be
1
.
To enable service broker, execute
Alter database dbname
set enable_broker with rollback immediate
Configuring and Starting the Alerter
To use the alerter, you must install the Oracle AQ or Microsoft SQL Server package. See your Oracle documentation for information about installing the Oracle AQ or Microsoft
SQLServer package. When configuring the publication service, you must enable the alerter by checking the Use Alerter checkbox under the Publisher Options tab. When the adapter starts, the alerter will also start.
If an adapter that uses the alerter is not shutdown cleanly, you must call the cleanup_alerter stored procedure before restarting the adapter. The procedure is normally called by the adapter when it shuts down cleanly.
Oracle Alerter Example
This section describes how to execute the commit_and_notify_table
stored procedure. It assumes the rvpub.tra
configuration has its data source name, user account name ( demo
) and password defined in the repository. The rvpub
adapter publication service has been configured with the Use Alerter checkbox checked.
1. Start the adapter publication service instance by typing: adbagent --propFile rvpub.tra rvpub.tra
2. After inserting a message, execute the commit_and_notify_table
stored procedure with the publishing table monitored by the adapter. For example, if the adapter is monitoring the
PUB_ORDER
table: sqlplus demo/demo insert into ORDER_TABLE values(111,'Oak Table',499.95);
SQL> execute commit_and_notify_table (’PUB_ORDER’);
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The procedure puts a message on an Oracle AQ. The publisher adapter then reads its publishing table and sends a message containing the changed data on its configured subject.
This example shows how to tell the adapter instance to poll a single table,
PUB_ORDER
, for changes. Use the commit_and_notify
stored procedure to poll all publishing tables for changes.
SQL Server Alerter Example
This section describes how to execute the commit_and_notify_table
stored procedure. It assumes the rvpub.tra
configuration has its data source name, user account name ( demo
) and password defined in the repository. The rvpub
adapter publication service has been configured with the Use Alerter checkbox checked.
1. Start the adapter publication service instance by typing: adbagent --propFile rvpub.tra rvpub.tra
2. After inserting a message, execute the commit_and_notify_table
stored procedure with the publishing table monitored by the adapter. For example, if the adapter is monitoring the
PUB_ORDER
table: isql -Udemo -Pdemo
SQL> insert into ORDER_TABLE values(111,'Oak Table',499.95);
SQL> execute commit_and_notify_table ’PUB_ORDER’;
The procedure puts a message to the service broker queue, which is picked up by the adapter. The publisher adapter then reads its publishing table and sends a message containing the changed data on its configured subject.
This example shows how to tell the adapter instance to poll a single table,
PUB_ORDER
, for changes. Use the commit_and_notify
stored procedure to poll all publishing tables for changes.
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Setting Up and Starting the Alerter on Microsoft SQL Server 2000
On Microsoft SQL Server the alerter mechanism is an extended stored procedure in a dynamic link library (provided with installation media) that is dynamically loaded into
SQL Server.
Two stored procedures are available for sending messages when using the alerter:
• notify
. Sends a TIBCO Rendezvous message to the given instance or instances that one or more publishing tables have been updated.
• notifytable table_name
. Sends a TIBCO Rendezvous message to the given instance or instances that the given publishing table has been updated.
Before Starting
A database account must have been created for running the adapter. This is typically done after installation. See TIBCO ActiveMatrix Adapter for Database Installation for details.
Alerter Setup
Before using the alerter you must copy the alerter dynamic link library adbalerter_mssql.dll
to the
Binn
directory where SQL Server is installed, add the notify
and notifytable
external stored procedures to the master database and set execute permission on the procedures for the database account used by the adapter.
1. Open a command window and change directory to the
TIB_ADADB_HOME
/lib directory.
2. Copy the alerter library to the
Binn
directory where SQL Server is installed, for example: copy adbalerter_mssql.dll \Mssql7\Binn
3. Ensure the procedures are not already defined in the master database: isql -Usa -P password
1> sp_dropextendedproc notify
2> go
1> sp_dropextendedproc notifytable
2> go
1> DBCC adbalerter_mssql(FREE)
2> go
DBCC execution completed. If DBCC printed error messages, contact your system administrator.
4. Add the procedures to the master database:
1> sp_addextendedproc 'notify','adbalerter_mssql.dll'
2> go
1> sp_addextendedproc 'notifytable','adbalerter_mssql.dll'
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2> go
5. Set access permissions for the database account used by the adapter:
1> grant execute on notify to database_account
2> go
1> grant execute on notifytable to database_account
2> go
1> exit
6. Add
TIBCO_HOME
\tibrv\bin
to the system
PATH
variable.
Using the Alerter
When using the alerter, the adapter instance must be started with polling disabled. In this example, after adding a row in a table monitored by the adapter, the alerter procedure is invoked and the adapter checks for updates in its publishing table. The database server name is itaska
and database name is activedb
.
1. In a command window, start an adapter instance with polling disabled (set the adb.PollingInterval
value to 0 in the properties file): adbagent --propFile properties_file_name
2. In another command window, insert a row into the database table being monitored by the adapter, commit the transaction, then invoke the notify procedure: isql -Uadb -Padb -dactivedb
1> insert into ORDER_TABLE values(406,'walnut table',9899.89)
2> go
1> execute itaska.master.dbo.notify @agentname='rvpub'
2> go
Notifying: rvpub
You can also execute the notify
procedure for more then one adapter instance. Each configuration name must be separated using a space character. For example:
1> execute itaska.master.dbo.notify @agentname='rvpub rvpub2 rvpub3'
2> go
The notifytable
procedure can be invoked for one or more adapter instances and one publishing table. If the database used by the adapter and master database are on the same database server, the server prefix need not be given.
1> execute itaska.master.dbo.notifytable
@agentname='rvpub rvpub2',@tablename='P_ORDER_TABLE’
2> go
Modifying RV Configuration
The RV configuration parameters used by the alerter to connect to a remote daemon can be modified by including the configuration parameters when invoking the store procedure.
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For example, execute master.dbo.notify @agentname='rvpub', @service='7500', @network=’lan0’, @daemon='10.105.176.21:7500' execute master.dbo.notifytable @agentname='rvpub rvpub2', @pubtable='ADB_ORDER', @service='7500',
@network=’lan0’, @daemon='10.105.176.21:7500'
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Setting Up and Starting the Alerter on Sybase SQL Server
On Sybase SQL Server the alerter mechanism is an extended stored procedure in a dynamic link library (provided with the installation media) that is dynamically loaded into
Sybase SQL Server. Two stored procedures are available for sending messages when the alerter is used:
• notify
. Sends a TIBCO Rendezvous message to the given configuration or configurations that one or more publishing tables have been updated.
• notifytable table_name
. Sends a TIBCO Rendezvous message to the given configuration or configurations that the given publishing table has been updated.
Before Starting
A database account must be created for running the adapter. This is typically done after installation. See TIBCO ActiveMatrix Adapter for Database Installation for details.
Alerter Setup on Solaris
Before using the alerter you must copy the alerter shared library to the
Sybase/lib
directory, add the notify
and notifytable
external stored procedures to the master database and set execute permission on the procedures for the database account used by the adapter. The name of the shared library file is adbalerter_sybase.so
.
1. Open a command window and change directory to the
TIB_ADADB_HOME
/lib directory. Copy the alerter library as follows: cp adbalerter_sybase.so sybase/lib
You may need to shut down and restart your
XP SERVER
after copying the shared library to the sybase/lib
directory.
2. Ensure that the procedures are not already defined in the master database: isql -Usa -P password
1> sp_dropextendedproc notify
2> go
1> sp_dropextendedproc notifytable
2> go
1> sp_freedll "adbalerter_sybase"
2> go
3. Add the procedures to the master database:
1>create procedure notify
2>@agentname varchar(255),
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3>@service varchar(255)=
’default_value’
,
4>@network varchar(255)=
’default_value’
,
5>@daemon varchar(255)=
’default_value’
6> as external name 'adbalerter_sybase'
7>go
1>create procedure notifytable
2>@agentname varchar(255),
3>@tablename varchar(255),
4>@service varchar(255)=
’default_value’
,
5>@network varchar(255)=
’default_value’
,
6>@daemon varchar(255)=
’default_value’
7> as external name 'adbalerter_sybase'
8>go
This example shows how to add procedures on Solaris.
4. Set access permissions for the database account used by the adapter:
1> grant execute on notify to database_account
2> go
1> grant execute on notifytable to database_account
2> go
1> exit
5. Add
TIBCO_HOME
/tibrv/lib/libtibrv.so
to the system
LD_LIBRARY_PATH
variable.
6. Add
TIBCO_HOME
/tibrv/rvd/bin
to the system
PATH
variable.
Alerter Setup on Microsoft Windows
Before using the alerter you must copy the alerter dynamic link library, add the external stored procedures to the master database and set execute permission on the procedures for the database account used by the adapter.
1. Open a command window and change directory to the
TIB_ADADB_HOME
\lib directory. Copy the alerter library as follows: copy adbalerter_sybase.dll \Sybase\dll
You may need to shutdown and restart your
XP SERVER
after copying adbalerter_sybase.dll
to the
\Sybase\dll
directory.
2. Ensure that the procedures are not already defined in the master database: isql -Usa -P password
1> sp_dropextendedproc notify
2> go
1> sp_dropextendedproc notifytable
2> go
1> sp_freedll "adbalerter_sybase"
2> go
3. Add the procedures to the master database:
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1>create procedure notify
2>@agentname varchar(255),
3>@service varchar(255)=
’default_value’
,
4>@network varchar(255)=
’default_value’
,
5>@daemon varchar(255)=
’default_value’
6> as external name 'adbalerter_sybase'
7>go
1>create procedure notifytable
2>@agentname varchar(255),
3>@tablename varchar(255),
4>@service varchar(255)=
’default_value’
,
5>@network varchar(255)=
’default_value’
,
6>@daemon varchar(255)=
’default_value’
7> as external name 'adbalerter_sybase'
8>go
4. Set access permissions for the database account used by the adapter:
1> grant execute on notify to database_account
2> go
1> grant execute on notifytable to database_account
2> go
1> exit
5. Add
TIBCO_HOME
\tibrv\bin
to the system
PATH
variable.
Using the Alerter
When using the alerter, an adapter instance must be started with polling disabled. In this example, after adding a row in a table monitored by the adapter, the alerter procedure is invoked and the adapter checks for updates in its publishing table. The database server name is itaska
and database name is activedb
.
1. In a command window, start the adapter instance with polling disabled (set the adb.PollingInterval
value to 0 in the properties file): adbagent --propFile propFilename
2. In another command window, insert a row into the database table being monitored by the adapter, commit the transaction, then invoke the notify procedure: isql -Uadb -Padb -dactivedb
1> insert into ORDER_TABLE values(406,'walnut table',9899.89)
2> go
1> execute itaska.master.dbo.notify @agentname='rvpub'
2> go
Notifying: rvpub
You can also execute the notify
procedure for more than one adapter instance. Each configuration name must be separated using a space character. For example:
1> execute itaska.master.dbo.notify @agentname='rvpub rvpub2 rvpub3'
2> go
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The notifytable
procedure can be invoked for one or more adapter instances and one publishing table. For example:
1> execute itaska.master.dbo.notifytable
@agentname='rvpub rvpub2',@tablename='P_ORDER_TABLE'
2> go
If the database used by the adapter and master database are on the same database server, the server
prefix need not be given.
Modifying RV Configuration
The RV configuration parameters used by the alerter to connect to a remote daemon can be modified by including the configuration parameters when invoking the store procedure.
For example, execute master.dbo.notify @agentname='rvpub', @service='7500', @network=’lan0’, @daemon='10.105.176.21:7500' execute master.dbo.notifytable @agentname='rvpub rvpub2', @pubtable='ADB_ORDER', @service='7500',
@network=’lan0’, @daemon='10.105.176.21:7500'
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TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Chapter 7
Using the Request-response Service
This chapter explains the request-response service, load balancing, and Oracle REF data type support features.
See TIBCO ActiveMatrix Adapter for Database Examples for request-response exercises.
| 111
Topics
•
Introduction, page 112
•
Request-response Mode, page 114
•
RPC Mode, page 122
•
Load Balancing, page 132
•
Oracle REF Data Type Support, page 139
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Introduction
Request-response operations are set up using the Request-Response Service dialog. This dialog is described in
Configuration Tab on page 85
.
Using request-response semantics, client applications can send SQL statements, stored procedures, or both on a specified subject to an adapter instance. The adapter processes the request and returns the results in a response to the client.
1. A request may be a query to the database or any DDL or DML command to be performed on the database. Multiple statements, procedures or both can be sent in one message.
2. The adapter executes the statement, procedure or both. Requests within a message are processed as a single transaction.
3. The adapter sends back the response to the Inbox, subject or response subject that was set up by the client application. The response consists of a result code or one or more result sets, based on the request. A response can also be an error code or error description, if the request was not successful.
Multiple adapter instances can be configured so that any one of the configurations receives and processes the request:
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Introduction | 113
• For a single configuration, the number of threads can be configured that will be responsible for processing application requests. See
Load Balancing in a Single
Instance Using Threads on page 132
• For multiple configurations, TIBCO Rendezvous Distributed Queuing can be used to balance the load across a number of configurations in a queue. The task will be
assigned to the least loaded member of the queue. See
Load Balancing Across Adapter
Instances on page 134
for details.
Use of Quotes in Microsoft SQL Server
When constructing a request in your application that will be processed by the adapter with a Microsoft SQL Server database, you must take care when using quotes.
For example, the following procedure is part of a request from an application. Double quotation marks are used, which is incorrect. An error will be returned.
select @qry = "Update " + @tablename + " set ORDER_DESCRIPTION = 'UPDATE TEST'" + ", ORDER_PRICE =
10109.25"
The following procedure is the same as above, but uses single quotes. It will be correctly processed.
select @qry = 'Update ' + @tablename + ' set ORDER_DESCRIPTION = ''UPDATE TEST'', ORDER_PRICE =
10109.25'
See Delimited Identifiers in your Microsoft SQL Server documentation for details.
The SQL statement should contain only ASCII characters.
If your SQL statements contain non-ASCII characters, convert them into a stored procedure and invoke the procedure using custom RPC operations.
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Request-response Mode
TIBCO ActiveMatrix Adapter for Database request-response mode supports the
Rendezvous, ActiveEnterprise and XML message formats.
Requests
A request can contain one or more SQL statements, stored procedures, or both to be executed as a transaction. The text of the SQL statement follows the conventions for
ODBC SQL syntax. All SQL statements supported by the DBMS are allowed and placeholders (represented by a question mark, ‘?’) are permitted in the SQL statement, conforming to the ODBC rules. For performance reasons, it is recommended to use a SQL statement. The ‘?’convention should only be used to bind binary data or call stored procedures.
An adapter instance is configured for request-response activity as described in
Request-response Service Tabs on page 85
. In so doing, the adapter listens on the subject
on which the application sends requests. The application uses TIBCO Rendezvous or the
TIBCO Adapter SDK to send a self-describing message containing a request on the agreed subject to the adapter instance.
The following are supported:
• DDL and DML SQL statements
• The column size of the return resultset should not exceed 128
• Multiple statements or procedures in a single transaction that send a nested TIBCO
Rendezvous message
• rv_Send()
, rv_SendWithReply()
and rv_Rpc()
calls
• TIBCO Rendezvous C, C++, and Java APIs
If rv_SendWithReply()
or rv_Rpc()
calls are used, the adapter sends the response to the Inbox or subject that was set by the application for the response. Otherwise, the adapter sends the response on the response subject that was set at configuration time.
Requests are described in the following sections:
•
TIBCO ActiveEnterprise or XML Message Request Format, page 115
•
TIBCO Rendezvous Message Request Format, page 115
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Responses
A response from the adapter to a client application has a result code and one or more result sets. Each result set contains nested self-describing messages, each of which encodes a result row, such as that returned from a query. A response can also return an error code and error description if the request was not successful.
Responses are described in the following sections:
•
TIBCO ActiveEnterprise or XML Message Response Format, page 118
•
TIBCO Rendezvous Message Response Format, page 118
TIBCO ActiveEnterprise or XML Message Request Format
In these formats, the input class is SQL_REQUEST. The SQL_REQUEST class is
SQL_STATEMENT Class on page 126
<object name="SQL_REQUEST" lastModified="1036435805361" id="503">
<assoc name="attribute">
<string name="name" value="STATEMENTS"/>
<ref name="attributeType" value="/tibco/public/sequence/ae/class/ae/ADB/adbmetadata/sequence[SQL_STATEMENT]"/>
<string name="isKey" value="false"/>
<string name="isReadable" value="true"/>
<string name="isWriteable" value="true"/>
</assoc>
<assoc name="attribute">
<string name="name" value="CLOSURE"/>
<ref name="attributeType" value="/tibco/public/scalar/ae/any"/>
<string name="isKey" value="false"/>
<string name="isReadable" value="true"/>
<string name="isWriteable" value="true"/>
</assoc>
<string name="family" value="ae"/>
<string name="objectType" value="class"/>
</object>
TIBCO Rendezvous Message Request Format
This is an example structure of the nested self-describing request message sent by an application to the adapter.
Request
{ rv_Name = “closure”, rvmsg_Type = RVMSG_OPAQUE, rvmsg_Data = optional_closure_data rv_Name = “stmt”, rvmsg_Type = RVMSG_RVMSG, rvmsg_Data =
Statement rv_Name = “stmt”, rvmsg_Type = RVMSG_RVMSG, rvmsg_Data =
Statement rv_Name = “stmt”, rvmsg_Type = RVMSG_RVMSG, rvmsg_Data =
Statement
. . .
}
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The closure
field is an optional field. If included in the request, the response returns the same closure argument untouched, so the client application can use this information as a means of matching requests with responses.
The value
Statement
is a TIBCO Rendezvous Message of the following structure:
Statement
{ rv_Name = “sql”, rvmsg_Type = RVMSG_STRING, rvmsg_Data =
SQL_statement_with_possible_bind_variables rv_Name = “maxrows”, rvmsg_Type = RVMSG_INT, rvmsg_Data = optional_max_number_of_rows_to_fetch rv_Name = “bind”, rvmsg_Type = RVMSG_RVMSG, rvmsg_Data =
Bind_data rv_Name = “bind”, rvmsg_Type = RVMSG_RVMSG, rvmsg_Data =
Bind_data rv_Name = “bind”, rvmsg_Type = RVMSG_RVMSG, rvmsg_Data =
Bind_data
. . .
}
The value
Bind_data
is a
TIBCO Rendezvous Message
with the following structure:
Bind_data
{ rv_Name = "position", rvmsg_Type = RVMSG_INT, rvmsg_Data = position_of_placeholder_starting_with_1_from_left_to_right rv_Name = "column", rvmsg_Type = RVMSG_STRING, rvmsg_Data = in_format_table-name.column-name_whose_column_type_matches_this_bound_variable rv_Name = "data", rvmsg_Type = type_of_bound_data
, rvmsg_Data = value_of_bound_data
}
If the position
field is not specified, the order received is used.
Example TIBCO Rendezvous Message Requests
The section contains example requests that are based on SQL statements made by a client application and sent to an adapter instance for processing.
Simple SQL Request Statement
Given that a client application submits the following SQL statement:
INSERT INTO order_table (order_id, order_description, order_price) values (1, ‘Order 1’, 1.10)
The corresponding request could be formatted as a TIBCO Rendezvous Message similar to the following:
{ name = “closure” value = optional_closure_argument name = “stmt” value =
{
name = “sql” value = “INSERT INTO order_table (order_id, order_description, order_price) values (1, ‘Order 1’,
1.10)”
}
}
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Bind Request Statement
Assume that a client application submits the following SQL statement, where
?
is a placeholder for an adbDateTime
value:
INSERT INTO order_table (order_id, order_date) values (2, ?)
The corresponding request could be formatted as a message in
TIBCO Rendezvous Message format similar to the following:
{ name = “closure” value = optional_closure_argument name = “stmt” value =
{
name = “sql” value = “INSERT INTO order_table (order_id, order_date) values (2, ?)”
name = “bind” value =
{
name = “order_table.order_date” type = RVMSG_STRING value = “1999-08-20 10:20:01”
}
}
}
To create a bind parameter for binary data, the actual data would be sent as an
RVMSG_OPAQUE
.
Not every data value sent to an SQL statement must be bound. The client can embed all these values into the actual text of the statement instead. Embedding the values directly into the SQL text results in better performance. However, binary values must be bound.
Types such as adbDateTime
can either be bound or included in the SQL text by using the native DBMS date conversion function.
For example, in ORACLE, you could use the
TO-DATE
function to enter a date:
INSERT INTO order_table (order_id, order_date) values (2,
TO_DATE(’1999-08-20 10:20:01’, ’YYYY-MM-DD HH24:MI:SS’));
Using Bind Entries
Bind entries are specific only to the stmt {}
that contains them. For example, if you want to insert three rows into
REPLYTEST
, you need to have three stmt {}
blocks (and thus, three sets of bind
statements): request: {
stmt={ sql="INSERT INTO REPLYTEST (id, timestamp, bincol) VALUES (5, ?, ?)" bind={ column="REPLYTEST.TIMESTAMP" data="1991-10-10 12:10:10"} bind={ column="REPLYTEST.BINCOL" data=[3 opaque bytes]}}
stmt={ sql="INSERT INTO REPLYTEST (id, timestamp, bincol) VALUES (5, ?, ?)" bind={ column="REPLYTEST.TIMESTAMP" data="1991-11-10 12:10:10"} bind={column="REPLYTEST.BINCOL" data=[4 opaque bytes]}}
stmt={ sql="INSERT INTO REPLYTEST (id, timestamp, bincol) VALUES (5, ?, ?)" bind={ column="REPLYTEST.TIMESTAMP" data="1991-12-10 12:10:10"} bind={ column="REPLYTEST.BINCOL" data=[5 opaque bytes]}}}
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TIBCO ActiveEnterprise or XML Message Response Format
In the TIBCO ActiveEnterprise Message or XML format, the input class is
SQL_BATCHRETURN. This class is described in
SQL_ BATCHRETURN Class on page 125
TIBCO Rendezvous Message Response Format
If rv_SendWithReply()
or rv_Rpc()
is used to send the request, the response is sent back on the subject or Inbox that was associated with the request.
If rv_Send()
is used to send the request, because no response subject was specified with the request, the response subject set when the adapter was configured is used. To receive a response from the adapter, the client application must listen on the response subject.
The structure of a response message in TIBCO Rendezvous Message format is shown below.
Reply
{ rv_Name = “status” rvmsg_Type = RVMSG_INT rvmsg_Data = 0 rv_Name = “results” rvmsg_Type = RVMSG_RVMSG rvmsg_Data =
Result rv_Name = “closure”, rvmsg_Type = RVMSG_OPAQUE, rvmsg_Data = optional_closure_data
} where
Result
is a message in TIBCO Rendezvous Message format of the following structure:
Result
{ name = “row” type = RVMSG_RVMSG value =
List_of_columns name = “row” type = RVMSG_RVMSG value =
List_of_columns name = “row” type = RVMSG_RVMSG value =
List_of_columns
. . .
} where
List_of_columns
is a message in TIBCO Rendezvous Message format of the following structure:
List_of_columns
{ rv_Name = column_name
, rvmsg_Type = type_of_bound_data
, rvmsg_Data = value_of_bound_data rv_Name = column_name
, rvmsg_Type = type_of_bound_data
, rvmsg_Data = value_of_bound_data rv_Name = column_name
, rvmsg_Type = type_of_bound_data
, rvmsg_Data = value_of_bound_data
. . .
}
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If the request processing was not successful, the response could also return an error code and error description as shown next:
Reply
{ rv_Name = “status” rvmsg_Type = RVMSG_INT rvmsg_Data = nonzero_number rv_Name = “sql” rvmsg_Type = RVMSG_STRING rvmsg_Data =
SQL_statement_that_caused_error rv_Name = “error” rvmsg_Type = RVMSG_STRING rvmsg_Data = error_text rv_Name = “closure”, rvmsg_Type = RVMSG_OPAQUE, rvmsg_Data = optional_closure_data
}
The status
value is an integer specifying success or error. Possible values are:
0: ok // No error
1: noMem // Out of Memory
2: notInitialized // Object never initialized
3: typeConversion // Type conversion error
4: dbNotFound // Database not registered
5: serverError // Error reported by server
6: serverMessage // Message from server
7: vendorLib // Error in vendor's library
8: notConnected // Lost connection
9: endOfFetch // End of fetch
10: invalidUsage // invalid usage of object
11: columnNotFound // Column does not exist
12: invalidPosition // invalid positioning within
object,i.e.bounds err
13: notSupported // Unsupported feature
14: nullReference // Null reference parameter
15: notFound // Database Object not found
16: missing // Required piece of information is missing
17: noMultiReaders // This object cannot support multiple readers
18: noDeleter // This object cannot support deletions
19: noInserter // This object cannot support insertions
20: noUpdater // This object cannot support updates
21: noReader // This object cannot support readers
22: noIndex // This object cannot support indices
23: noDrop // This object cannot be dropped
24: wrongConnection // Incorrect connection was supplied
25: noPrivilege // This object cannot support privileges
26: noCursor // This object cannot support cursors
27: cantOpen // Unable to open
28: applicationError // For errors produced at the application level
29: notReady // For future use
Example TIBCO Rendezvous Message Responses
This section has two examples. The first shows a successful query response and the second shows an unsuccessful query response.
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Query Example
As an example, assume the SQL statement,
SELECT * FROM ORDER_TABLE
produces the following result:
SQL> SELECT * FROM ORDER_TABLE;
ORDER_ID ORDER_DESCRIPTION ORDER_PRICE
1 Order 1 1.00
2 Order 2 2.00
In this case, the self-describing message in TIBCO Rendezvous Message format produced by the adapter would have the following structure:
{ name = “closure” value = optional_closure_argument name = “status” value = 0 name = “results” value =
{
name = “row” value =
{
name = “order_id” type = RVMSG_INT value = 1
name = “order_description” type = RVMSG_STRING value = “Order 1”
name = “order_price” type = RVMSG_REAL value = 1.00
}
name = “row” value =
{
name = “order_id” type = RVMSG_INT value = 2
name = “order_description” type = RVMSG_STRING value = “Order 2”
name = “order_price” type = RVMSG_REAL value = 2.00
}
}
}
Error Example
If the request that was processed resulted in an error, the adapter returns a message containing an error code and description as shown below. In this example, assume the
SQL statement
SELECT * FROM ORDER_TABLE
produced an error because there was no table named
ORDER_TABLE
defined in the database:
SQL> SELECT * FROM ORDER_TABLE;
SELECT * FROM ORDER_TABLE
*
ERROR at line 1:
ORA-00942: table or view does not exist
The self-describing message produced by the adapter would have the following structure:
{ name = “closure” value = optional_closure_argument
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
name = “status” value = 5 name = “sql” value = “SELECT * FROM ORDER_TABLE” name = "error" value = "[INTERSOLV][ODBC SequeLink driver][DB2/400]ORDER_TABLE in *LIBL type *FILE not found.
}
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RPC Mode
TIBCO ActiveMatrix Adapter for Database uses the TIBCO Adapter SDK Operations
API for RPCServer.
In TIBCO Designer, you can configure an adapter to act as an RPC (remote procedure call) server on behalf of a client. Selecting RPC mode creates an object in the repository describing the RPC server that the adapter instance will start.
This section presents the structure of the TIBCO Repository class objects that provide
MOperation
support. Based on these class descriptions, you can create an RPC client to send requests to the adapter in the expected structure.
For convenience, class structure is shown in XML format.
Schema Types
Two schema types can be used for the server object created in the repository. For
, the standard request and reply object schema are pre-defined by TIBCO ActiveMatrix Adapter for Database. This schema can be used to describe the input and output of any database request, allowing a request/response service to process database operations on any tables or execute any stored procedures.
In some cases, using a standard schema can make the request/reply service difficult to integrate with third-party applications, as standard request and reply object schema do not describe the actual input and output values of a database operation or a stored procedure.
The third-party application has to do its own parsing and mapping of the request and reply
, which allows you to define your operations, can be
used in these situations. You can specify the stored procedure to be executed at design time. These operation definitions are stored in the repository in a way that allows easy integration with other applications.
One-way and Two-way Invocation
An RPC operation uses two-way invocation by default, in which it expects a reply from the server. You can make an RPC operation use one-way invocation, where no reply is expected by the server.
Standard RPC Operation
The repository contains descriptions of the classes and operations provided for
MOperation support.
The
SQL_OPS
class describes the operations that the adapter instance, acting as an RPC server, can handle.
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The structure of the server object is:
<servers>
<rvCmRpcServer
name = " agentName reqreprvcmRPCServer"
session = " agentName pubreqreprvcmRvCmSession"
subject = "ADB.SDK.OPERATION"
classRef = "SQL_OPS"
/>
</servers>
Two types of operations are supported,
SQL_EXECUTE
and
SQL_BATCHEXECUTE
.
SQL_EXECUTE
takes a single SQL statement and processes it.
SQL_BATCHEXECUTE
takes a sequence of SQL statements and processes them. The other classes, such as
SQL_STATEMENT
,
SQL_BIND
, and
SQL_RETURN
, describe metadata for the input and output parameters to the operations.
• Use
SQL_BATCHEXECUTE
to send one or more SQL statements in a request.
•
SQL_BATCHRETRUN
is the return class.
• If an error occurs while executing a statement, the adapter returns the error immediately without executing the remaining statements.
• On Oracle only, all statements are executed within the same transaction.
SQL_OPS Class
The structure of the
SQL_OPS
class is:
<class
name = "SQL_OPS">
<operation
name = "SQL_EXECUTE"
returnClass = "SQL_RETURN">
<parameter name = "STATEMENT" classRef = "SQL_STATEMENT" direction = "in"> </parameter>
</operation>
<operation
name = "SQL_BATCHEXECUTE"
returnClass = "SQL_BATCHRETURN">
<parameter name = "STATEMENTS" classRef = "sequence[SQL_STATEMENT]" direction = "in" />
</operation>
</class>
SQL_RESULTSET Class
The structure of the
SQL_RESULTSET
class is:
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<class name = "SQL_RESULTSET">
<attribute name = "HEADER" class = "sequence[string]">
</attribute>
<attribute name = "ROWVALUES" class = "sequence[SQL_ROW]">
</attribute>
<attribute name = "OUTBINDS" class = "sequence[SQL_BIND]">
</attribute>
</class>
SQL_ROW Class
The structure of the
SQL_ROW
class is:
<class name = "SQL_ROW">
<attribute name = "ROW" class = "sequence[any]">
</attribute>
</class>
SQL_RETURN Class
The structure of the
SQL_RETURN
class is:
<object name="SQL_RETURN" lastModified="1046487158293" id="202">
<assoc name="attribute">
<string name="name" value="STATUS"/>
<ref name="attributeType" value="/tibco/public/scalar/ae/string"/>
<string name="isKey" value="false"/>
<string name="isReadable" value="true"/>
<string name="isWriteable" value="true"/>
</assoc>
<assoc name="attribute">
<string name="name" value="SQL"/>
<ref name="attributeType" value="/tibco/public/scalar/ae/string"/>
<string name="isKey" value="false"/>
<string name="isReadable" value="true"/>
<string name="isWriteable" value="true"/>
</assoc>
<assoc name="attribute">
<string name="name" value="ERROR_DESC"/>
<ref name="attributeType" value="/tibco/public/scalar/ae/string"/>
<string name="isKey" value="false"/>
<string name="isReadable" value="true"/>
<string name="isWriteable" value="true"/>
</assoc>
<assoc name="attribute">
<string name="name" value="CLOSURE"/>
<ref name="attributeType" value="/tibco/public/scalar/ae/any"/>
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<string name="isKey" value="false"/>
<string name="isReadable" value="true"/>
<string name="isWriteable" value="true"/>
</assoc>
<assoc name="attribute">
<string name="name" value="RETURNVALUE"/>
<ref name="attributeType" value="/tibco/public/class/ae/ADB/adbmetadata/SQL_RETURNVALUE"/>
<string name="isKey" value="false"/>
<string name="isReadable" value="true"/>
<string name="isWriteable" value="true"/>
</assoc>
<string name="family" value="ae"/>
<string name="objectType" value="class"/>
</object>
SQL_RETURNVALUE
<object name="SQL_RETURNVALUE" lastModified="1046487158293" id="204">
<assoc name="attribute">
<string name="name" value="OUTBINDS"/>
<ref name="attributeType" value="/tibco/public/sequence/ae/class/ae/ADB/adbmetadata/sequence[SQL_BIND]"/>
<string name="isKey" value="false"/>
<string name="isReadable" value="true"/>
<string name="isWriteable" value="true"/>
</assoc>
<assoc name="attribute">
<string name="name" value="RESULTSETS"/>
<ref name="attributeType" value="/tibco/public/sequence/ae/class/ae/ADB/adbmetadata/sequence[SQL_RESULTSET]"/>
<string name="isKey" value="false"/>
<string name="isReadable" value="true"/>
<string name="isWriteable" value="true"/>
</assoc>
<string name="family" value="ae"/>
<string name="objectType" value="class"/>
</object>
SQL_ BATCHRETURN Class
The structure of the
SQL_BATCHRETURN
class is:
<class name = "SQL_BATCHRETURN">
<attribute name = "STATUS" class = "string">
</attribute>
<attribute name = "RESULTSETS" class = "sequence[SQL_RESULTSET]">
</attribute>
<attribute name = "SQL" class = "string">
</attribute>
<attribute name = "ERROR_DESC" class = "string">
</attribute>
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<attribute name = "CLOSURE" class = "any"
</attribute>
</class>
SQL_BIND Class
The structure of the
SQL_BIND
class is:
<class name = "SQL_BIND">
<attribute name = "POSITION" class = "i4">
</attribute>
<attribute name = "TYPE" class = "string">
</attribute>
<attribute name = "DATA" class = "any">
</attribute>
<attribute name = "NAME" class = "string">
</attribute>
</class>
SQL_STATEMENT Class
The structure of the
SQL_STATEMENT
class is:
<class name = "SQL_STATEMENT">
<attribute name = "SQL_STRING" class = "string">
</attribute>
<attribute name = "BINDS" class = "sequence[SQL_BIND]">
</attribute>
<attribute name = "CLOSURE" class = "any"
</attribute>
<attribute name = "MAXROWS" class = "i4">
</attribute>
</class>
Custom RPC Operation
When you select Use Custom Operations in the Configuration tab of the
Request-Response dialog, you can create custom schema for your operations. You can define the call operations to be executed by the RPC server in advance. The palette automatically generates the input and output schema for the call operation.
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The operation takes one input class, REQUEST, which describes the input parameters and other input options for the stored procedure execution. The operation returns a class called
REPLY, which describe the output schema of the stored procedure or any error message the agent returns.
Table 30 Request Schema Description
Input
Item
INBINDS
Data Type or
Classname
INPUT_BINDS
Description
The input parameters of the stored procedure.
OPTIONS INPUT_OPTIONS
The input options:
Option Data Type Description
CLOSURE
Any
MAXROW
S
Integer The maximum number of rows to retrieve.
SQL
CACHE
String
Boolean
The SQL string use to execute the stored procedure.
This string is automatically generated by the palette.
True if user want the agent to cache the statement for performance optimization
PACKAGE
SCHEMA
String
String read only, uses the call operation form to modify the package of the stored procedure. read only, uses the call operation form to modify the package of the stored procedure.
Closure argument. The reply returns this closure argument untouched.
Table 31 Reply Schema Description
Output Item
OUTBINDS
Data Type or
Classname
OUTPUT_BINDS
RESULTSET[1..n]/RESUL
TSETS
STATUS
OUTPUT_ROWS/
SQL_RESULTSET
String
Description
The output parameters of the stored procedure
The result set(s) returned by the stored procedure, see section
'Result Set Support' for more description
SUCCESS
if the stored procedure is executed successfully.
FAILURE
if there is an error. Error details are stored in the
OPTIONS class
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Table 31 Reply Schema Description (Cont’d)
Output Item
Data Type or
Classname
OPTIONS CUSTOM_OP_OUTPUT_OP
TION
CLOSURE
Any
Description
Contains the error description and the SQL statement if an error occurred.
Closure argument obtained from the request
Resultset Support
TIBCO ActiveMatrix Adapter for Database supports multiple resultsets returned for a stored procedure. The class generated for the resultset output depends on the schema information provided by the JDBC driver.
• For drivers that return valid information of a resultset schema, ADB creates an output class, named
OUTPUT_ROW[1..n]
, for each result set. This is shown in the screen below.
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RPC Mode | 129
• If a driver does not return valid information for the resultset schema, TIBCO
ActiveMatrix Adapter for Database uses the generic class
SQL_RESULTSETS
as the output schema, as described in
Standard RPC Operation on page 122
.
DataDirect JDBC 3.3 drivers only provide valid resultset schema information for Oracle
Server version 8.1.7 or higher.
Implementing Client RPC Programs
Two sample clients are provided in the
TIB_ADADB_HOME
\demo\operation
directory:
• a sample C++ client program that you can build and change
• a sample RPC client
Creating a Custom RPC Client
There are two tasks in creating a custom RPC client:
1. Write an RPC client program using the TIBCO Adapter SDK. This task is described in
TIBCO Adapter SDK Programmer’s Guide.
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2. Create a new entry for the RPC client in the repository. This task is described below.
For more information on RPC server and client endpoint type fields, see TIBCO Designer
Palette Reference.
To create a new RPC client entry in the repository:
Perform these steps after writing the client program and configuring the adapter, as described above. Detailed instructions for configuring a generic adapter are in TIBCO
Designer User’s Guide.
1. In TIBCO Designer, drag a Generic Adapter Configuration icon to the design panel.
2. Enter an Instance Name and an SDK AppName for the adapter.
3. Click the Apply button.
4. In the Project panel, expand the GenericAdapterConfiguration folder and expand the Adapter Services folder.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
5. Drag a Request-Response Invocation Service icon to the designer panel.
RPC Mode | 131
6. In the Configuration tab, set the name of the service and transport type of your client service.
7. In the Transport tab, set the message subject, quality of service, and wire format of your client service.
If using the TIBCO Rendezvous message transport, you must use the TIBCO
ActiveEnterprise wire format.
8. In the Schema tab, set the classReference
to point to the correct class schema.
— For a standard RPC schema, use the following class schema:
AESchemas/ae/ADB/adbmetadata/Classes/SQL_OPS
— For custom RPC schema, use the class schema that corresponds to the server endpoint:
AESchemas/ae/ADB/ serviceName
/Classes/ADBServer_OPS
9. Click Apply.
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Load Balancing
The adapter balances the load of requests coming in from applications in two ways, within a single adapter instance and across multiple adapter instances.
Load Balancing in a Single Instance Using Threads
An adapter instance performs load balancing within itself by allowing you to specify the number of threads that will be responsible for processing application requests. The number of threads to be spawned is specified in TIBCO Designer for an adapter instance.
To set load balancing parameters for a configuration:
1. In the project tree panel, click the corresponding ActiveDatabase Adapter resource to select it.
The TIBCO Designer window should look similar to the following:
2. Check the Show All Tabs checkbox.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
3. Display the Adapter Services tab.
Load Balancing | 133
4. Change the value of Number Of Request-Response Service Threads as needed.
5. Click the Apply button.
Each request-response service thread is dedicated to listening on an agreed request subject.
1. When a request message is received by the request-response communication thread, it enqueues it into an in-memory queue. Each database request-response thread has a connection to the database using the user name-password combination that was provided to the adapter.
2. When an item is enqueued by the communication thread, one of the database request-response threads picks it up and executes the one or more SQL statements in the message as an atomic transaction.
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3. It then composes a TIBCO Rendezvous self-describing response message and sends back a response on a response subject. If the original request was sending using rv_SendWithReply()
or rv_Rpc()
, the response is sent back on the subject that was specified by the requesting application. Otherwise, the response is sent back on the subject that was set up at configuration time.
While the request message can be sent with either reliable or certified quality of service, the response message is always sent back using the reliable quality of service.
Load Balancing Across Adapter Instances
To achieve load balancing across adapter instances, TIBCO Rendezvous Distributed
Queueing can be used to assign each application request to exactly one adapter instance.
For example, the following diagram shows three adapter instances each connected to a database server (not shown) that contains replicated data.
Figure 5 Request-Response Load Balancing
Request
Distributed Queue
Adapter 4
Request
Request
Adapter 1
(Scheduler)
Request
Adapter 3
Adapter 2
TIBCO Messaging
Responses
Application
The adapter instances have been set up to use distributed queueing with one instance acting as the scheduler. Only one of the three adapter instances will receive an incoming request from an application. The scheduler will assign certified requests to the least loaded member of the queue.
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A queue member’s load is determined by the number of pending processes that are waiting to be processed by the member’s database request-response thread. After the request is processed, the processing configuration sends a response back to the requesting application.
Reliable requests in a certified environment use a simpler type of load balancing. In this example, the scheduler distributes the first reliable request to
Adapter 2
, the second to
Adapter
3
, and the third to
Adapter 4
without evaluating a queue member’s load.
Configuring an Adapter Instance to use Distributed Queues
You can configure the adapter with a subscription service to use a distributed queue, then use TIBCO Administrator Enterprise Edition to deploy multiple instances of the adapter.
The instances can be deployed on the same machine, or multiple machines. In this scenario, each adapter instance uses the same (default) values for the distributed queue.
1. Start TIBCO Designer and create a new project.
2. Drag the ActiveDatabase Adapter Configuration icon to the design panel.
3. Configure the adapter instance with a design-time connection and
ODBC DSN
value.
4. Drag the
ADBSubscriber
icon to the design panel.
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5. Under the Configuration tab, set Transport Type to Rendezvous and Quality of
Service to Distributed Queue. For example:
6. Configure the service with a destination table name and other settings for your environment.
7. Click Project > Save.
8. Click Tools > Create Project EAR. Under the Configuration tab, provide a name and file location for the EAR file.
9. Click Build Archive.
After creating the EAR file, you are ready to import it into TIBCO Administrator
Enterprise Edition and add the adapter instance multiple times to the same machine or multiple machines.
1. Start TIBCO Administrator Enterprise Edition.
2. Select Application Management, then click the New Folder button. In
Name
, provide a name for the folder and click the Save button.
3. Select the folder, then click New Application.
4. Click the Browse button and navigate to the EAR file you created in Designer. Click the OK button.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
5. In the dialog that appears, click the Save button.
6. Expand the configuration, then double-click the name
.aar file.
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7. Click the Add To Additional Machine button and select the machine to bind to and click the OK button.
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8. Repeat to create the number of adapter instances required for your environment. For example, the next screen shows that three adapter instances have been added.
9. Click the Save button.
The adapter instances are ready to be deployed. After the instances are deployed, when a message is sent to the adapter, the instance that is not busy will handle the request.
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Oracle REF Data Type Support
The adapter supports the use of the REF data type (cursor) as an OUT parameter only in an Oracle stored procedure. The adapter returns a result in the same way as it does a result set from a SELECT query. The exact usage depends on the driver used (DataDirect
Connect or Oracle ODBC), as described below.
For example, consider the following PL/SQL procedure:
-- Create a REF cursor procedure
CREATE OR REPLACE PACKAGE ORDER_DEMO AS
TYPE OrderCurTyp IS REF CURSOR RETURN SUB_ORDER%ROWTYPE;
PROCEDURE FindOrders (price IN NUMBER, order_cv OUT OrderCurTyp);
END ORDER_DEMO;
CREATE OR REPLACE PACKAGE BODY ORDER_DEMO AS
PROCEDURE FindOrders (price IN NUMBER, order_cv OUT OrderCurTyp) IS
BEGIN
OPEN order_cv FOR SELECT * FROM SUB_ORDER where ORDER_PRICE > price;
END FindOrders;
END ORDER_DEMO;
Using DataDirect Connect Drivers
When using DataDirect Connect® (Merant) drivers, the procedure is called by leaving the
REF cursor parameter out of the procedure's call list. For example, the procedure
ORDER_DEMO.FindOrders
with an input price of $1.00 can be called through the request program with the following request:
{stmt={sql="{call ORDER_DEMO.FindOrders(?)}" bind={position=1 type="IN" data=1}}}
The REF cursor's data will be returned in the results section of the reply.
Also,
ProcedureRetResults=1
must be added to the data source entry in the odbc.ini
file.
Using Oracle ODBC Drivers
When using the Oracle ODBC Driver, the procedure is called by including the REF cursor parameters in the call list but not binding them. For example, the procedure
ORDER_DEMO.FindOrders
with an input price of $1.00 can be called through the request program with the following request:
{stmt={sql="{call ORDER_DEMO.FindOrders(?, ?)}" bind={position=1 type="IN" data=1}}}
The REF cursor's data will be returned in the results section of the reply.
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TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Chapter 8
Working With Tables
This chapter describes advanced features such as the format of a publishing table, stored procedures and the triggers used to populate publishing tables and adapter instance options.
| 141
Topics
•
Publishing Table, page 142
•
Source Table, page 148
•
Exception Table, page 149
•
Opaque Exception Table, page 152
•
Incremental Parent-child Operation, page 154
•
Database Types, page 156
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Publishing Table
Publishing tables mirror tables that you have identified for monitoring. They contain additional columns, primarily a sequence number and delivery status, which are needed by the adapter to detect new rows. You create a publishing table for each table you want to activate using TIBCO Designer.
The trigger generated at design time will automatically populate the values for these additional columns. It is not recommended that you modify these values.
In addition to a copy of the source table’s columns, the publishing table has the following additional columns.
Table 32 Publishing Table Additional Columns (Sheet 1 of 2)
Column Name
ADB_SUBJECT
Type
VARCHAR2(255)
Description
Used to specify the subject to publish the current row. Length is
255. You can set a message subject in this field which will take precedence over the default service subject. The adapter will publish this row with this new message subject.
In group messaging, the group message will be sent to the subject set for the last row of the group.
ADB_SEQUENCE NUMBER(38) Stores the monotonically increasing sequence number that represents new rows in the publishing table. If a column with this name exists, the number is generated automatically.
By default, the schema type is string
. The adapter treats this number as a string. This number can be larger than an integer if the database supports it.
ADB_SET_SEQUENCE
ADB_TIMESTAMP
NUMBER(38)
DATE
Currently not used.
Time of row insertion in publishing table that is used to calculate expiration of rows. The timestamp is generated automatically.
For Oracle databases, the timestamp includes the time zone information.
For all new services:
Microsoft Windows platforms, the timestamp with time zone option should be selected in the Advanced Settings tab of the
ODBC connection.
Unix platforms, the LocalTimeZoneOffset parameter in the odbc.ini should be set to the local time zone. For example,
LocalTimeZoneOffset=+10:00.
Also the EnableTimestampWithTimeZone parameter in the odbc.ini file should be set to 1.
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Table 32 Publishing Table Additional Columns (Sheet 2 of 2)
Column Name
ADB_TRACKINGID
Type
VARCHAR2(40)
Description
Tracking ID of the message.
This is automatically added to the publishing table and the publishing schema.
If you do not want to monitor the tracking id, you can manually remove this field from the project schema and the publishing table
ADB_OPCODE NUMBER(38) Operation code used by an adapter instance:
1
indicates INSERT.
2
indicates UPDATE.
3
indicates DELETE.
4
indicates UPSERT. UPDATE if row exists, otherwise INSERT.
10
indicates BYPASS (See Incremental Parent-child Operation on page 154 )
If an incoming TIBCO Rendezvous message does not have an operation code, an INSERT occurs.
ADB_UPDATE_ALL
ADB_REF_OBJECT
ADB_L_DELIVERY_STAT
US
ADB_L_CMSEQUENCE
ADB_MARK
ADB_INSTANCEID
NUMBER(38)
VARCHAR2(64)
CHAR(1)
NUMBER(38)
VARCHAR2(64)
VARCHAR2(200)
Currently not used.
When publish by reference object is used, contains the name of the reference object that provides source data.
Delivery status of a TIBCO Rendezvous message:
P
indicates pending acknowledgement.
N
indicates that a new message has arrived, but has not yet been published.
C
indicates complete.
F
indicates failed.
Certified messaging sequence number associated with this message.
It is a number that is retrieved from the publication load balancing mutex table when the service instance is started. It represents an identifier of each adapter instance in the publication load balancing group.
It is the adapter instance ID configured by the user.
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When publishing parent-child record or in Publish By Reference mode, if the key value is empty (null) in the publishing table, the adapter will consider this as an error operation, and update the failure status in the publication table by setting adb_l_delivery_status
to
F
. The data will not be published.
The publication table cannot contain any user-created columns where the column name starts with
ADB_
. These characters are reserved for adapter use.
Removing Records from the Publication Table
An adapter instance does not remove the records from the publication table automatically, because often that information must be retained for auditing reasons. You can use the following command at the SQL prompt to manually remove records from the given publishing table. The command deletes all rows where ADB_L_DELIVERY_STATUS is
C
or
F
.
SQL> delete from publication_table_name
where ADB_L_DELIVERY_STATUS = "C" or
ADB_L_DELIVERY_STATUS = "F";
To automate the process, you could include this statement in a trigger.
Publication Example
The following is a listing of the SQL commands used to create a publication. The listing can be found in the
TIB_ADADB_HOME
\demo\demo1\demo_ database
.sql
file. The file shows the stored procedure, and insert, update and delete triggers that are generated for a publication.
-- *******************************************
-- TIBCO ActiveMatrix Adapter for Database
-- Demo SQL script
-- *******************************************
-- Spool the output of sql commands to a log file spool demo.log
-- *******************************************
-- Create sample tables
-- *******************************************
-- Publication source table
CREATE TABLE ORDER_TABLE (
ORDER_ID NUMBER PRIMARY KEY,
ORDER_DESCRIPTION VARCHAR2(128),
ORDER_PRICE NUMBER(10,3)
);
-- Create the destination table
CREATE TABLE SUB_ORDER (
ORDER_ID NUMBER PRIMARY KEY,
ORDER_DESCRIPTION VARCHAR2(128),
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Publishing Table | 145
ORDER_PRICE NUMBER(10,3)
);
-- *******************************************
-- Setup a publication
-- *******************************************
/
)
CREATE TABLE PUB_ORDER (
ORDER_ID NUMBER,
ORDER_DESCRIPTION VARCHAR2(128),
ORDER_PRICE NUMBER(10,3),
ADB_SUBJECT VARCHAR2(255) NULL,
ADB_SEQUENCE INTEGER NOT NULL,
ADB_SET_SEQUENCE INTEGER NULL,
ADB_TIMESTAMP DATE NULL,
ADB_OPCODE INTEGER NOT NULL,
ADB_UPDATE_ALL INTEGER NULL,
ADB_REF_OBJECT VARCHAR2(64) NULL,
ADB_L_DELIVERY_STATUS CHAR NULL,
ADB_L_CMSEQUENCE NUMBER(38, 0) NULL
/
CREATE UNIQUE INDEX IDX1_PUB_ORDER ON PUB_ORDER (ADB_SEQUENCE)
CREATE UNIQUE INDEX IDX2_PUB_ORDER ON PUB_ORDER (ADB_L_DELIVERY_STATUS,
/
ADB_SEQUENCE)
/
CREATE INDEX IDX3_PUB_ORDER ON PUB_ORDER (ADB_L_CMSEQUENCE)
/
CREATE SEQUENCE PUB_ORDER_SEQ
START WITH 1
INCREMENT BY 1
NOMAXVALUE
NOCYCLE
CACHE 10
CREATE OR REPLACE TRIGGER TRI_PUB_ORDER AFTER INSERT OR DELETE OR UPDATE ON
ORDER_TABLE FOR EACH ROW DECLARE updating_key_fields EXCEPTION;
BEGIN
IF INSERTING THEN
INSERT INTO PUB_ORDER VALUES (
:NEW.ORDER_ID,
:NEW.ORDER_DESCRIPTION,
:NEW.ORDER_PRICE,
NULL,
PUB_ORDER_SEQ.NEXTVAL,
0,
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SYSDATE,
1,
NULL,
NULL,
'N',
-1);
END IF;
IF UPDATING THEN
IF UPDATING('ORDER_ID') THEN
RAISE updating_key_fields;
END IF;
INSERT INTO PUB_ORDER VALUES (
:OLD.ORDER_ID,
:NEW.ORDER_DESCRIPTION,
:NEW.ORDER_PRICE,
NULL,
PUB_ORDER_SEQ.NEXTVAL,
0,
SYSDATE,
2,
NULL,
NULL,
'N',
-1);
END IF;
IF DELETING THEN
INSERT INTO PUB_ORDER VALUES (
:OLD.ORDER_ID,
:OLD.ORDER_DESCRIPTION,
:OLD.ORDER_PRICE,
NULL,
PUB_ORDER_SEQ.NEXTVAL,
0,
SYSDATE,
3,
NULL,
NULL,
'N',
-1);
END IF;
EXCEPTION
WHEN updating_key_fields THEN raise_application_error(-20300, 'ActiveDB Error: cannot
/
END TRI_PUB_ORDER;
-- *******************************************
-- Setup a subscription
-- ******************************************* update key fields of source table.');
CREATE TABLE SUB_ORDER_EXCEP (
ORDER_ID NUMBER,
ORDER_DESCRIPTION VARCHAR2(128),
ORDER_PRICE NUMBER(10,3),
ADB_OPCODE INTEGER NULL,
ADB_UPDATE_ALL INTEGER NULL,
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Publishing Table | 147
/
)
ADB_ERROR_TEXT VARCHAR(4000) NULL,
ADB_ERROR_TIME DATE DEFAULT SYSDATE
COMMIT;
Changing the Publication Trigger to Publish a Subset of Rows
You can set up a publication to publish only a subset of the rows within a table. That is, there may be scenarios where it is desirable to publish only if the inserted, deleted, or updated row satisfies certain conditions. While it is possible to use the callout library to do this additional filtering, it is simpler and more efficient to use a trigger that directly tests whether publishing conditions are met.
For Oracle, add a when
clause to a row level trigger to test for the desired conditions. For
Sybase and Microsoft SQL Server, use the if
statement within a trigger body to test for the desired conditions.
For example, you could change the demo.sql
trigger described in the previous section to fire only if the ORDER_PRICE value is $1.00 or greater:
CREATE OR REPLACE TRIGGER TRI_P_ORDER_TABLE AFTER INSERT OR UPDATE OR DELETE ON
ORDER_TABLE
FOR EACH ROW WHEN (new.ORDER_PRICE >= 1.00)
Optimizing the Publication Sequence for Oracle RAC System
To optimize the performance and to avoid out of order generation of ADB_SEQUENCE, it is recommended that you add the ORDER option and also increase the cache size.
Consult your system administrator to confirm the impact of these changes.
CREATE SEQUENCE PUB_ORDER_SEQ
START WITH 1
INCREMENT BY 1
NOMAXVALUE
ORDER
NOCYCLE
CACHE 50
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Source Table
If loop detection is enabled, the following column will be added to the source table.
If the source table contains a field
ADB_TRACKINGID
, it will be updated using the tracking id of the message. If this field is not present, the tracking id field will be ignored..
Table 33 Source Table Additional Columns
Column Name
ADB_SOURCE
Type
CHAR
Description
Used for loop detection. Denotes whether the row was inserted or updated as the result of a TIBCO Rendezvous message, rather than user intervention.
Valid values are
T
or
NULL
.
T
indicates the row is not to be published.
NULL
indicates the row can be published.
ADB_TRACKINGID VARCHAR2(
40)
Tracking ID of the message.
The source table cannot contain any user-created columns where the column name starts with
ADB_
. These characters are reserved for adapter use.
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Exception Table | 149
Exception Table
If a database restriction or failure occurs, an exception table can be configured to receive the message. If insertion into an exception table also fails, an error message will display and the adapter instance will terminate. You can build a TIBCO Hawk rulebase that detects when the configuration is down and automatically restarts it when the database is up. See TIBCO Hawk Administrator’s Guide for details about creating a rulebase.
For bulk insert operations, the agent will insert all the rows into the exception table. For example, if the agent attempts to perform a bulk insert of 500 rows to the destination table, and the first 300 rows are inserted successfully but the last 200 rows are unsuccessful, the agent will insert all 500 rows to the exception table. It will then commit the operation.
(The bulk insert operation is described in
Adapter Services Tab on page 43
In addition to destination table columns, the following columns are added to the exception table.
Table 34 Exception Table Additional Columns
Column Name
ADB_OPCODE
Type
NUMBER(38)
Description
Operation code used by the adapter:
1 indicates INSERT
2 indicates UPDATE
3 indicates DELETE
4 indicates UPDATE if row exists, otherwise INSERT.
If an incoming TIBCO Rendezvous message does not have an operation code, an INSERT occurs.
ADB_UPDATE_ALL
ADB_TRACKINGID
ADB_ERROR_TEXT
NUMBER(38)
VARCHAR2(40)
VARCHAR2(4000)
Currently not used.
Tracking ID of the message. This column is the primary key.
Each exception table that is mapped to a child table is connected to the parent’s exception table by this column
Text of the error from the database server, ODBC driver, or other source that caused the exception.
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Table 34 Exception Table Additional Columns (Cont’d)
Column Name
ADB_ERROR_TIME
Type
DATE
Description
Timestamp of the inserted record.
For Oracle databases, the timestamp includes the time zone information.
For all new services:
Microsoft Windows platforms, the timestamp with time zone option should be selected in the Advanced Settings tab of the
ODBC connection.
Unix platforms, the LocalTimeZoneOffset parameter in the odbc.ini should be set to the local time zone. For example,
LocalTimeZoneOffset=+10:00
Also the EnableTimestampWithTimeZone parameter in the odbc.ini file should be set to 1.
ADB_JOIN_ID VARCHAR Joined column used to link a parent record with its child record.
ADB_JOIN_ID is generated from ADB_TRACKINGID and concatenated with the record number in the group. A child table’s exception table is connected to its parent’s table exception table by ADB_JOIN_ID.
The exception table cannot contain any user-created columns where the column name starts with
ADB_
. These characters are reserved for adapter use.
Child Exception Table
In addition to child table columns, the following columns are added to a child exception table.
Table 35 Child Exception Table Additional Columns
Column Name
ADB_ERROR_TEXT
Type
VARCHAR
Description
Text of the error from the database server, ODBC driver, or other source that caused the exception.
ADB_ERROR_VTIME
ADB_TRACKINGID
ADB_JOIN_ID
DATE
VARCHAR
VARCHAR
Timestamp of the inserted record.
TrackingID of the message.
Tracking ID of the Message.
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Exception Table | 151
Using an Exception Table as a Source Table
If you want to publish from an exception table and also want to use that exception table as the source table, do not use the
ADB_ERROR_TEXT
or
ADB_OPCODE
column names. Instead, follow these guidelines:
• Create a database view that mirrors the exception table, but rename the
ADB_ERROR_TEXT
and
ADB_OPCODE
columns so that they do not begin with
"ADB_
."
•
After renaming the columns, use Publish By Reference Object (see
Publishing by
Reference Object, page 171
) and choose your view as the reference object.
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Opaque Exception Table
The subscription service uses two logical layers when processing a message. The first layer decodes data from the message and the second layer provides the database transaction. If an exception occurs in the first layer, the adapter logs the message to the opaque exception table. In the second layer, if any DML command fails at any level, the adapter rolls back this transaction and starts another transaction, inserting into exception tables. If the insert into exception table transaction fails, the adapter then logs the message to the opaque exception table.
The opaque exception table records the entire message into a column along with the error message. The opaque exception table has the following columns:
Table 36 Opaque Exception Table Columns
Column Name
ADB_TRACKINGID
Type
VARCHAR
Description
Tracking ID of the message.
ADB_ERROR_TEXT VARCHAR Text of the error from the database server,
ODBC driver, Adapter SDK or other source that caused the exception.
ADB_ERROR_TIME DATE
ADB_MSG
ADB_SUBTAB
ADB_SUBJECT
BLOB
VARCHAR
VARCHAR
Timestamp of the inserted record.
For Oracle databases, the timestamp includes the time zone information.
For all new services:
Microsoft Windows platforms, the timestamp with time zone option should be selected in the
Advanced Settings tab of the ODBC connection.
Unix platforms, the LocalTimeZoneOffset parameter in the odbc.ini should be set to the local time zone. For example,
LocalTimeZoneOffset=+10:00
Also the EnableTimestampWithTimeZone parameter in the odbc.ini file should be set to 1.
Raw bytes of the message.
Destination table name.
Subscription service destination or subject.
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Opaque Exception Table | 153
Table 36 Opaque Exception Table Columns (Cont’d)
Column Name
ADB_TRANSPORT
Type
INT
Description
Subscription service transport type:
0 unknown
1 Rendezvous
2 JMS
The ADB_SUBTAB column allows you to configure several subscription services using only one opaque exception table in the same database schema.
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Incremental Parent-child Operation
To support incremental parent-child operations, each child row has an opcode, that is, an extra
ADB_OPCODE
field that is added to the child schema. The opcode
ADB_OPCODE_BYPASS is used to bypass the current table operation. The adapter determines if the operation is an incremental parent-child operation by checking the first level child opcode. If the first level child opcode is not set, the adapter treats it as a complete operation. For the subsequence child level, if the child opcode is not set, it will inherit the parent opcode.
Mixed parent-child operations are also supported. You can send a message to insert new child rows, update other child rows, and delete other child rows for an existing parent-child object. Following is an example of a mixed parent-child operation: adb.key
{
RVMSG_INT 2 ^type^ 1
RVMSG_INT 2 ^pfmt^ 10
RVMSG_INT 2 ^ver^ 30
RVMSG_INT 2 ^encoding^ 1
RVMSG_RVMSG 110 ^prefixList^
{
RVMSG_STRING 49 1 "/tibco/public/sequence/ae/class/ae/ADB/abc"
RVMSG_STRING 37 default "/tibco/public/class/ae/ADB/abc"
}
RVMSG_RVMSG 77 ^tracking^
{
RVMSG_STRING 30 ^id^ "Gi2--4--DGMSk--s-064zzw8L-zzw"
RVMSG_STRING 22 ^1^ "adb.key"
}
RVMSG_RVMSG 1200 ^data^
{
RVMSG_STRING 8 ^class^ "S_KEYP1"
RVMSG_INT 4 ADB_OPCODE 10
RVMSG_RVMSG 480 ADB_SEQUENCE_S_KEYP2
{
RVMSG_STRING 18 ^class^ "sequence[S_KEYP2]"
RVMSG_INT 4 ^idx^ 1
RVMSG_RVMSG 210 ^1^
{
RVMSG_STRING 8 ^class^ "S_KEYP2"
RVMSG_INT 4 ADB_OPCODE 10
RVMSG_RVMSG 119 ADB_SEQUENCE_S_KEYP3
{
RVMSG_STRING 18 ^class^ "sequence[S_KEYP3]"
RVMSG_INT 4 ^idx^ 1
RVMSG_RVMSG 58 ^1^
{
RVMSG_STRING 8 ^class^ "S_KEYP3"
RVMSG_INT 4 ADB_OPCODE 4
RVMSG_REAL 8 A 1
RVMSG_STRING 2 B "a"
RVMSG_REAL 8 C 4
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}
RVMSG_RVMSG 58 ^2^
{
RVMSG_STRING 8 ^class^ "S_KEYP3"
RVMSG_INT 4 ADB_OPCODE 3
RVMSG_REAL 8 A 1
RVMSG_STRING 2 B "a"
RVMSG_REAL 8 C 4
}
}
}
RVMSG_RVMSG 210 ^2^
{
RVMSG_STRING 8 ^class^ "S_KEYP2"
RVMSG_INT 4 ADB_OPCODE 1
RVMSG_REAL 8 A 2
RVMSG_STRING 2 B "a"
RVMSG_REAL 8 C 4
RVMSG_RVMSG 119 ADB_SEQUENCE_S_KEYP3
{
RVMSG_STRING 18 ^class^ "sequence[S_KEYP3]"
RVMSG_INT 4 ^idx^ 1
RVMSG_RVMSG 58 ^1^
{
RVMSG_STRING 8 ^class^ "S_KEYP3"
RVMSG_REAL 8 A 2
RVMSG_STRING 2 B "a"
RVMSG_REAL 8 C 4
}
}
}
}
}
}
When the adapter receives this message, it performs the following database operations in sequence:
1. Bypass the parent table operation
2. Bypass first row operation on child table S_KEYP2
3. UPDATE S_KEYP3 set B = 'a', C = 4 where A = 1;
4. DELETE FROM S_KEYP3 where A = 1;
5. INSERT INTO S_KEYP2 (A, B, C) values (2, 'a', 4);
6. INSERT INTO S_KEYP3 (A, B, C) values (2, 'a', 4);
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Database Types
The database data types listed in this section are supported.
Oracle
The following Oracle data types are supported:
• CHAR
• DATE
• LONG
• LONG RAW
• NUMBER
• TIMESTAMP WITH
TIMEZONE
•
•
NCHAR
DECIMAL
• XMLType
•
•
•
•
•
TIMESTAMP
RAW
VARCHAR2
CLOB
BLOB
• TIMESTAMP
WITH LOCAL
TIMEZONE
• NVARCHAR2
• NCLOB
The following ANSI data types in Oracle are supported:
• DOUBLE PRECISION
• FLOAT
• INT
•
•
•
INTEGER
SMALLINT
REAL
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Database Types | 157
SQL Server
Sybase and Sybase Adaptive Server Anywhere
The following Sybase data types are supported:
• BINARY
• BIT
• CHAR
• DATETIME
• DECIMAL
• FLOAT
• IMAGE (Publish by reference only)
• INT
• MONEY
• NUMERIC
• REAL
• SMALLDATETIME
• SMALLINT
• SMALLMONEY
• TEXT
• TINYINT
• VARCHAR
• VARBINARY
• BIGINT
• NCHAR
• NVARCHAR
DB2
The following SQL Server data types are supported:
• BIGINT
• BINARY
• BIT
•
•
•
•
•
CHAR
DATETIME
DECIMAL
FLOAT
IMAGE (Publish by reference only)
•
•
•
INT
MONEY
NCHAR
• NTEXT
• NUMERIC
• NVARCHAR
• REAL
• SMALLDATETIME
• SMALLINT
• SMALLMONEY
• TEXT (publish by reference only)
• TIMESTAMP
• TINYINT
• UNIQUEIDENTIFIER
• VARBINARY
• VARCHAR
The following DB2 data types are supported:
• CHARACTER
• DECIMAL
• DOUBLE PRECISION
• FLOAT
• INTEGER
• LONG VARGRAPHIC
•
•
•
•
•
•
NUMERIC
REAL
SMALLINT
TIMESTAMP
VARCHAR
LONG VARCHAR
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• DATE
• BIGINT
• BLOB
• DOUBLE
MySQL
• TIME
• CLOB
• CHAR
The following MySQL data types are supported:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
BLOB
LONGBLOB
MEDIUMBLOB
TINYBLOB
BIT
BIGINT
MEDIUMINT
TINYINT
SMALLINT
INT
CHAR
VARCHAR
BINARY
BOOL
• DATETIME
• DATE
• TIMESTAMP
• TIME
• YEAR
• VARBINARY
• ENUM
• SET
• TEXT
• LONGTEXT
• MEDIUMTEXT
• TINYTEXT
• FLOAT
• DECIMAL
• DOUBLE
Teradata
The following Teradata data types are supported:
• BYTE
• BYTEINT
• DECIMAL(n,p)
• SMALLINT
• INTEGER
• NUMERIC(n,p)
•
•
•
•
•
•
CHAR(n)
VARCHAR(n)
VARBYTE
LONG VARCHAR
DATE
TIME(n)
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Database Types | 159
• FLOAT(n)
• REAL
• DOUBLE PRECISION
• TIME(n) WITH TIME
ZONE
• TIMESTAMP(n)
• TIMESTAMP(n) WITH
TIME ZONE
Mapping to Database Types
The adapter converts values fetched from the database to types supported by the wire format. Similarly, data fields received in a message must be converted to meaningful database types before being stored.
The following table shows the mapping used by the adapter for such conversion.
Table 37 Mapping to Database Types
ODBC Type
TIBCO
ActiveEnterprise
Type string SQL_CHAR
SQL_VARCHAR
SQL_LONGVARCHAR i4 SQL_SMALLINT
SQL_INTEGER
SQL_REAL
SQL_DOUBLE
SQL_FLOAT
SQL_DECIMAL
SQL_NUMERIC
SQL_BINARY
SQL_VARBINARY
SQL_LONGVARBINARY
SQL_TIMESTAMP r8 binary dateTime
TIBCO Rendezvous
Message Type
RVMSG_STRING
RVMSG_INT
RVMSG_REAL
RVMSG_OPAQUE
RVMSG_DATETIME
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TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Chapter 9
Advanced Features
Topics
•
Subject and Destination Names, page 163
•
Preregistering a Certified Subscriber, page 167
•
Changing the Location of the Ledger File, page 169
•
Sending Messages to an Adapter Instance, page 170
•
Publishing by Reference Object, page 171
•
User Callout Library, page 179
•
Unique Connection Identifier for Oracle Databases, page 185
•
Publishing in a Commitment Controlled Environment, page 186
•
Using the Adapter with a Revision Control System, page 188
•
Using a Log File for an Adapter Instance, page 189
•
Using Database Deployment and Cleanup Scripts, page 194
•
Changing the SQL Statement Terminator (DB2 for z/OS Only), page 197
•
Fault Tolerance, page 198
•
SSL Data Encryption using DataDirect ODBC Drivers, page 200
•
OS Authentication, page 201
•
Query Timeout, page 202
•
Working with Multi-File Format Projects, page 203
•
Subscriber Reply Sender, page 204
•
Subscriber Pre-commit Stored Procedure Call, page 205
•
JMS Durable Subscriber Name, page 206
•
Runtime Schema, page 207
•
Runtime Table Schema Configuration, page 208
•
Group Message Transaction, page 209
•
Load Balancing and Multithreading, page 210
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| 161
162 | Chapter 9 Advanced Features
•
Compressing JMS Messages, page 219
•
Configuring RVCMQ Backlog Size, page 220
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Subject and Destination Names | 163
Subject and Destination Names
An adapter instance sends and receives messages using subject names when using the
TIBCO Rendezvous transport type, and destination names when using the JMS transport type. Both subject and destination names are structured strings of alphanumeric characters divided into elements by the dot (
.
) character. For example,
Tibco.Tsi
and
News.Sports.Baseball
are valid subject and destination names.
Default subject or destination names are provided in TIBCO Designer. You can change these default values to specify a custom subject or destination name. A default subject or destination, depending on which transport type you choose to configure, is created each time an adapter service is created.
The following are restrictions on subject names and destination names:
• Length of subject and destination names
— Subject names are limited to a total length of 255 characters (including the dot delimiters). Even though TIBCO Rendezvous has a 255-character subject length limit, it is very unlikely that applications will need to use the full length. If you want to run an adapter instance against Microsoft SQL Server, you must design your subject space to conform to the length restrictions. There can be at most 100 elements in a subject name. The maximum element length is 127 characters.
— Destination names are limited to a total length of 249 characters. Even though JMS has a 249-character destination length limit, some of that length is reserved for internal use. The destination space must be designed to conform to the length restrictions. There can be at most 64 elements in a destination name. The maximum element length is 127 characters. Dot separators are not included in element length.
• Wildcard characters
The asterisk (
*
) and greater than (
>
) are wildcard characters that can be used when specifying subject names or destination names.
For example, if messages are published on the tsi.sales.sports
and tsi.sales.clothing
subjects and your subscriber adapter listens on the tsi.sales.* subject, the configuration will get messages sent on both subjects. This feature also applies to destination names.
• Reserved underscore (
_
)
Subject or destination names beginning with underscore (
_
) are reserved. Application programs cannot send subjects or destinations with an underscore as the first character of the first element, however,
_INBOX
and
_LOCAL
are exceptions for subject names, and
_INBOX
is an exception for destination names. It is also recommended that you do not use tabs, spaces, or any unprintable character.
An underscore can be used elsewhere in subject or destination names. Subject names are case sensitive.
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• Empty strings
Empty strings (
""
) are not permitted.
• Dot character
The dot characer cannot be incorporated into an element by by using an escape sequence.
See TIBCO Rendezvous Concepts for a full explanation of subject names and TIBCO
Enterprise Message Service User’s Guide for destination names.
Parameterized Subject or Destination Names
During the usage of TIBCO ActiveMatrix Adapter for Database, a subject name can be created from one or more columns in a publishing table when using the TIBCO
Rendezvous transport type, and a destination name can be created when using the JMS transport type. A subject or destination created this way is known as a parameterized subject or destination. For example, you can use TIBCO Designer to define a publication subject as
MYSUBJECT.$COLUMN1.$COLUMN2
, where
COLUMN1
and
COLUMN2
are names of columns in the publishing table. For example:
TIBCO.ORDER.$ORDER_ID.$ORDER_DESCRIPTION
.
On publication, a subject or destination is created from the contents of those columns.
This allows receiving applications to filter publications based on the values of certain fields. Parameterized subject or destination names are supported with certified or reliable delivery.
Parameterized Subject and Destination Name Restrictions
The following are restrictions on parameterized subject names and destination names:
• Length of parameterized subject and destination names
— A TIBCO Rendezvous parameterized subject name can be at most 255 characters in length, with each component no more than127 characters.
— A JMS parameterized destination name can be at most 249 characters in length, with each component no more than 127 characters.
In the previous example, if the
ORDER_DESCRIPTION
column contains a description value that is longer than 127 characters, the parameter name
$ORDER_DESCRIPTION
is used as the subject or destination in place of the description value.
• Wildcard characters
The asterisk (
*
) or greater than (
>
) characters, or empty strings should not be used as attribute values (VARCHAR, CHAR) in a column that is part of a parameterized subject or destination. Doing so makes the subject or destination invalid.
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Subject and Destination Names | 165
For example, if the
TIBCO.ORDER.$ORDER_ID.$ORDER_DESCRIPTION parameterized subject or destination name is defined and the following values are inserted into
ORDER_TABLE
: insert into ORDER_TABLE values(111,'*',88.81); and the following values are inserted into the
ORDER_DESCRIPTION
table: insert into ORDER_DESCRIPTION TABLE values(112,'>',99.91); the publisher would return an error.
• Data type restrictions
— Do not use columns that contain Date types as part of a parameterized subject or destination. Date values are likely to contain characters such as dashes and spaces that can cause problems when used as part of a subject or destination.
— Do not use columns that contain binary types as part of a parameterized subject or destination.
— Do not insert Float-type data as an attribute value in a column that is part of a parameterized subject or destination. Doing so makes the subject or destination invalid.
• Column name
Each element cannot represent more than one column. For example,
MYSUBJECT.$COLUMN1$COLUMN2
is an invalid parameterized subject name.
• Group messaging
The group messaging feature is not supported with parameterized subjects or destinations. An error message will display and the adapter will automatically disable the group messaging feature for the publisher. For example, if the TIBCO Rendezvous transport type is used, the error message will be:
Cannot use parameterized subject with group Publishing. Disable group publishing.
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• Pre-registration
Pre-registration in the adapter can not work when a parameterized subject or destination is used.
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Preregistering a Certified Subscriber | 167
Preregistering a Certified Subscriber
You can add one or more certified subscribers, or listeners, for a publisher adapter that sends messages on subjects using the RVCM quality of service. The name of the subscriber is added to the publisher adapter’s preregistered list. The subscriber can be a
TIBCO ActiveMatrix Adapter for Database subscriber, or any other TIBCO Rendezvous subscriber.
A subscriber adapter on the preregister list is certified to receive all messages sent on the specified subject using the RVCM quality of service. If a subscriber is not preregistered, it may miss one or more of the initial messages sent by the publisher adapter.
Wildcard TIBCO Rendezvous subject names are not supported for preregistered listeners.
Preregistration will not work when parametrized subjects are used.
To preregister a certified subscriber in TIBCO Designer:
1. In the Project panel, under the publisher adapter, expand Advanced > Sessions > adbadapterInstanceNamervcmRvCmSession endpoint object.
2. Click the publisher endpoint in the Design panel.
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The Configuration Tab for this endpoint is displayed, as shown below.
3. Verify the name of the certified subscriber in the Preregistered Listeners field:
%%Domain%%.%%Deployment%%.adb.%% adapter_name
%%.CM
. In this example, the preregistered listener is the subscriber adapter named rvsub
.
4. Click the Apply button.
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Changing the Location of the Ledger File | 169
Changing the Location of the Ledger File
The ledger file provides temporary storage for published messages that are sent by a publisher adapter using the TIBCO Rendezvous certified messaging quality of service.
Each message is held in the ledger until an acknowledgement is received from the subscriber that the message has been consumed. If there are many subscribers, the ledger file can grow to a substantial size. In this case, it might be preferable to store the ledger file in a directory other than the default directory (which is
TIB_ADADB_HOME/ ledger
).
To change the location of the ledger file in TIBCO Designer:
1. In the project tree panel, navigate to the open the Advanced > Sessions > adbadapterInstanceNamervcmRvCmSession object, as shown in the previous
Preregistering a Certified Subscriber
2. Edit the Ledger File value to point to the new ledger file location.
In the following example the name of the ledger file has been changed to adbdemo2pubrvcm.ldg
, and it will be generated in the directory in which you run the adapter instance.
When the adapter instance is restarted, it writes the ledger file to the new location. For more information on using TIBCO Designer, see TIBCO Designer User’s Guide.
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Sending Messages to an Adapter Instance
When TIBCO ActiveMatrix Adapter for Database publishes messages including datetime data, the wire format is handled implicitly since both publisher and subscriber use the same format.
In many scenarios, however, a separate product acts as the publisher, which means that you must explicitly specify the wire format. For example, an adapter instance might subscribe to messages published by another TIBCO ActiveEnterprise product, such as
TIBCO ActiveMatrix BusinessWorks, after some transformation has been performed.
Messages containing datetime data sent to TIBCO ActiveMatrix Adapter for Database adapters must have that data in a string format. If it is in a different format, the TIBCO
ActiveMatrix Adapter for Database adapter will not be able to process the date values.
Formatting dates as strings allows the adapter to handle date values outside the range allowed by
RVMSG_DATETIME
, January 1, 1970 to January 1, 2034.
The format used by the adbDateTime
metadata class is described below.
adbDateTime Object
Do not change any adbDateTime
object information in this screen. Use this information to determine how to format the third-party subscriber date value.
To view the structure of the adbDateTime
class, from the project tree panel, navigate to
AESchemas > ae > ADB > adbmetadata > Classes > adbDateTime > dateTime
The input is a string value with one of the following formats: yyyy-mm-dd yyyy-mm-dd hh:mm:ss.xxx
where xxx
represents the millisecond value.
Timezone values are not supported.
The adapter will return an error when the input data contains timezone information. The timezone information can be parsed using the TIBCO BusinessWorks XPath functionality before passing it to the adapter.
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Publishing by Reference Object | 171
Publishing by Reference Object
When source data is stored in a view or other database object, you can publish this data using the publish by reference object feature. Publishing by reference object is an extension of the publish by reference feature. For a description of publishing by reference, see TIBCO ActiveMatrix Adapter for Database Concepts.
In both cases, only key values from the source table are stored in the publishing table. The difference when publishing by reference object is when a row changes in the source table and the associated trigger fires, the adapter fetches data from the reference object, rather than the source table. The name of the reference object is stored in an
ADB_REF_OBJECT
column in the publishing table. For a description of this column, see
Publishing Table on page 142
. Publishing by reference object is recommended when a view provides the most
efficient access to source data, for example when many levels of nesting exist between a parent and child table.
To Configure a Publisher Adapter to Publish Data by Reference Object:
1. Drag the ActiveDatabase Adapter Configuration icon to the design panel or select the resource in the project panel.
2. Drag a Publication Service icon to the design panel.
3. To add a source table for a publisher adapter, do the following in the Tables tab: a. Click the Add Table icon. The Add Table dialog displays.
b. Select a source table from the list and click the OK button.
If parent-child relationships are used, follow the steps under
Adding Child Tables on page 65
to add child tables.
You must explicitly designate a key column or substitute key column for the reference object, since a reference object has no external designation of the key column.
4. Specify the following options in the Publisher Options tab:
Storage Mode — From the drop-down list, select
Publish by Reference
.
Publishing Table — Type the table name to use for storage. A common practice is to use the source table name prefixed by
P_
.
Referred Object — Type the name of the view or other database object to select source data from. To select from a list of tables in the current user schema, click the Add button. To select an object from a different schema, select Add From.
Update Mode — Select the method for updating tables from the drop-down list.
Choose Update to update a row in the destination table only if the row exists. Choose
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Upsert to update a row in the destination table if the row exists and, if no such row exists, perform an insert.
5. Click the Apply button.
Designating the Key Column
To designate a column of the reference object as the key:
1. In the TIBCO Designer project tree panel, navigate to AESchemas > ae > ADB > adapter_instance
> classes > ref_object
> key_column
. The TIBCO Designer window should look similar to the following:
2. In the Configuration tab, click the Key Field checkbox to select it.
3. Click the Apply button.
Changing Repository Objects for Parent-child Relationships
If your publication service includes parent-child relationships, you must also add a sequence and association to the metadata stored in the repository. These tasks are described in the following sections.
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Adding a Sequence
To add a sequence:
1. In the TIBCO Designer project tree panel, navigate to AESchemas > ae > ADB > adapter_instance
>
Classes
> reference_object
.
2. Drag a Generic Sequence icon from the Palette panel to the Design panel to add it to the reference object class. The TIBCO Designer window should look similar to the following:
3. In the Name field, type
ADB_SEQUENCE_ child_table_name
.
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4. In the Select Sequence field, click the Browse button. The Select Resource dialog displays:
5. Click the name of the sequence that represents the child table for the publication service, for example, sequence[ORDER_DETAILS]
.
6. Click the OK button.
7. In TIBCO Designer, click the Apply button. The sequence is added to the metadata for the reference object.
Adding an Association
To add an association:
1. In the TIBCO Designer project tree panel, navigate to AESchemas > ae > ADB > adapter_instance
>
Associations.
Several associations could display, at least one for the parent table to the child table on the publisher side, and another for the destination parent table to the child table on the subscriber side.
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2. Click each of the resource icons that represent the parent-child relationship on the publisher side. For example:
3. In the Configuration tab, click in the Name field and replace the name of the publishing table with the name of the reference object. For example,
P_CUSTOMER^ORDER_DETAILS
becomes
ORDER_VIEW^ORDER_DETAILS
.
4. Click the Apply button.
5. In the project tree panel, double-click the new association name to expand it.
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6. In the Project panel, click Left Association to select it.
7. Enter a Role Name value that contains the reference object name. For example, roleORDER_TABLE
.
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8. In the Endpoint Class field, click the Browse icon. Navigate to the class that represents the reference object, in this case
ORDER_TABLE
, and click the OK button.
Example
9. In TIBCO Designer, click the Apply button.
In the following example, the publisher adapter is configured to publish source data from the
CUSTOMER
table and its child table,
EXTERNAL_ORDER_DETAILS
. The relevant key columns are
CUST_ID
and
ORDER_ID
.
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The publishing table is created with necessary adapter fields, as well as
CUST_ID and
ORDER_ID fields. When a row in
CUSTOMER is modified, the trigger fires, populating fields and copying the
CUST_ID
and
ORDER_ID
values, as well as the name of the reference object,
ORDER_VIEW
, to the publishing table. When the adapter polls the publishing table, it detects the new row. The adapter then selects the order and customer data from
ORDER_VIEW
, using the
CUST_ID and
ORDER_ID values along with the view name found in the publishing table.
Then the message is published.
Table to Record Sequence Numbers (DB2 on iSeries)
The palette will attempt to create the following table (if it does not exist) to record sequence numbers:
CREATE TABLE library
.ADB_SEQTAB (
PUB_TABLE VARCHAR(64) NOT NULL,
ADB_SEQ NUMERIC(20),
constraint ADB.ADB_SEQTAB_KEY primary key (PUB_TABLE))
The table must be journalled.
You can create this table or if journalling is automatically turned on, the palette will create the table automatically.
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User Callout Library | 179
User Callout Library
The user callout shared library allows the transformation of a message that the adapter publishes into a structure that you want to be published. The shared library can be customized to apply limited transformations to outgoing and incoming messages.
To use the callout library, the TIBCO Adapter SDK must be installed because the callout library uses SDK include files and links with SDK libraries. Additionally, you must use the same TIBCO Adapter SDK version that your adapter instance is using.
If a message is modified before it is sent by a publisher adapter, all subscribers will receive the modified message. If a message is modified before it is received by a subscriber adapter, only that adapter will get the modified message.
For example, at the publisher adapter, a message can be modified to have a field added, or publish an empty message if a certain criteria is met. At the subscriber adapter a message can be modified to be written to the database or not, based on a filter, or have the subject name inserted into the table.
Before a message is sent or received, the adapter checks the callout library. If the callout library has not been modified, the message is passed back to the adapter unchanged. If the callout library has been modified, the message is passed back to the adapter with the modification. After receiving a modified message from the callout library, the adapter instance sends or consumes the message like any other message.
• The altermsg.cpp
source file must be edited with your custom code.
• The callout library must be rebuilt for your platform.
The source code is included in your installation media in the
TIB_ADADB_HOME
\demo\altermsg
directory.
If you send or receive messages in the TIBCO Rendezvous Message wire format, the
TIBCO Rendezvous Message APIs cannot be used to directly alter those messages.
Instead, you will receive an
MTree
to which various functions can be applied to view or traverse the TIBCO Rendezvous message. If you must change the message, create a new message and pass it back to the adapter using the newmsg
argument.
Using the alterMsgPub and alterMsgSub Functions
Two functions are available in the altermsg.cpp
source file for creating callouts, alterMsgPub(
) to create a callout for a publisher and alterMsgSub()
to create a callout for a subscriber. Two examples are included in the altermsg.cpp
file. You can change the examples for your needs, or write new code in the file. The first example appends a new field to a message. The second example works in conjunction with the demo and returns an empty message if the message meets a certain criteria.
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The alterMsgPub(
) and alterMsgSub()
functions are the entry points into the callout library.
These two function names and their signatures must not be changed.
The alterMsgPub
and alterMsgSub
functions allow you to alter messages in the TIBCO
ActiveEnterprise Message, TIBCO Rendezvous Message, and XML wire formats. The function signatures are: alterMsgPub(char * subj, const MTree *msg,
MTree **newmsg,
MInstance *pInst,
MApp *pMapp,
MMessageFormat dataformat); alterMsgSub(char * subj, const MTree *msg,
MTree **newmsg,
MInstance *pInst,
MApp *pMapp,
MMessageFormat dataformat);
Both functions share the same set of parameters. However, several parameters are specific to a particular wire format.
The following table contains parameter descriptions and a column for each format. If the
R column contains an
X
, use the parameter for TIBCO Rendezvous Message wire format.
If the M column contains an
X
, use the parameter for TIBCO ActiveEnterprise Message or
XML wire format. Otherwise, leave the value as
NULL
.
Table 38 Wire Format Parameters and Descriptions
Parameter subj
R
X
M Description
X Subject on which the message is sent or received.
msg X MTree containing the message to send or receive.
X newmsg pInst pMapp
New MTree user creates if msg must be altered.
X MInstance of the message. Alter directly if necessary.
X TIBCO Adapter SDK MApp structure for this MInstance.
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Table 38 Wire Format Parameters and Descriptions (Cont’d)
Parameter dataformat
R
X
M Description
X The data format of the message.
Valid values are:
M_RV_MESSAGE_FORMAT
M_AERV_MESSAGE_FORMAT
M_XMLJMS_MESSAGE_FORMAT
M_XMLRV_MESSAGE_FORMAT
Check TIBCO Adapter For SDK documentation for details of these value.
When sending or receiving messages in the TIBCO ActiveEnterprise Message wire format, you must use the pInst
argument to change the message.
Using the adbPreCommit Function
The adbPreCommit
function allows you to perform a custom operation, such as invoking a stored procedure or sending a TIBCO Rendezvous message, just before the transaction is committed. This function is called by the subscriber after all inserts, updates and delete operations have been performed on both parent and child tables.
The function signature is: adbPreCommit(SQLHDBC connectHandle,
MApp *pMapp,
MInstance *pInst,
MTree *pTree,
MMessageFormat dataformat);
The following table contains parameter descriptions.
Table 39 adbPreCommit Parameter Descriptions
Parameter connectHandle
TIBCO
Rendezvous
Format
X
TIBCO
ActiveEnterprise
Format
X pMapp pInst pTree
X X
X
X
Description
The database connection handle.
TIBCO Adapter SDK MApp structure for this
MInstance.
MInstance of the message.
MTree containing the message.
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Table 39 adbPreCommit Parameter Descriptions (Cont’d)
Parameter dataformat
TIBCO
Rendezvous
Format
X
TIBCO
ActiveEnterprise
Format
X
Description
The data format of the message.
Valid values are:
M_RV_MESSAGE_FORMAT
M_AERV_MESSAGE_FORMAT
M_XMLJMS_MESSAGE_FORMAT
M_XMLRV_MESSAGE_FORMAT
Check TIBCO Adapter For SDK documentation for details of these value.
If an adapter is configured to use the adb.subBatchCommitTimeout
or adb.subBatchCommitSize
options, the custom operation is performed once for each message received. However, the entire transaction is not committed until the size or time-out values are reached. Adapter instances that use the bulk-insert-size
option cannot use adbPreCommit
.
For more information on these options, see
Appendix C, Adapter Properties File, on page 329
Building the Callout Library
The callout library is build with TIBCO Adapter SDK and TIBCO Rendezvous software.
For compiler requirements and instructions, see the TIBCO Adapter for SDK guide.
Building the Callout Library on Microsoft Windows
1. Using Visual C++, create a new workspace and insert a new project into the workspace.
2. In the new project, open the file:
TIB_ADADB_HOME
\demo\altermsg\altermsg.dsp
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3. Select Project > Settings. In the Project Settings dialog box: a. As shown next, select the C/C++ tab. In the Category drop-down list, select
Preprocessor. In the Additional Include Directories field type the path to the
TIBCO Rendezvous include
directory.
b. As shown next, select the Link tab. In the Category drop-down list, select Input.
In the Additional Library Path field, enter the path to the TIBCO Rendezvous library
directory.
4. Select Build > Build
adbaltermsg.dll
to create the library.
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5. After building the library, change to the
TIB_ADADB_HOME
/lib
directory.
a. Make a backup copy of the existing adbaltermsg.dll
library.
b. Copy the new adbaltermsg.dll
library into the bin
directory.
Building the Callout Library on UNIX
1. Using a text editor open the
MakeFile
and set the
RV_Home
environment variable. For example, for Solaris 8:
RV_HOME=/usr/tibco/tibrv
2. Using a text editor open the MakeFile and set the
SDK_Home
environment variable. For example:
SDK_HOME=/usr/tibco/adapter/sdk/5.6
3. Set the command to invoke your compiler. For example:
CC= CC
4. Set the options to be passed to your compiler. For example:
DEBUG=-g
OPT=-O4
5. Save the MakeFile and execute:
% make libadbaltermsg.so
6. After building the library, change to the
TIB_ADADB_HOME
\lib
directory.
a. Make a backup copy of the existing libadbaltermsg.so
library.
b. Copy the new libadbaltermsg.so
library into the lib
directory.
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Unique Connection Identifier for Oracle Databases
Within each adapter instance, the adapter typically creates multiple database connections or sessions. Each connection has a different responsibility (such as selecting from the publishing table or inserting into the destination table) and each is identified using a unique connection identifier.
The unique identifier added to each session allows a database administrator to monitor the adapter’s database activity from Oracle by being able to identify what each database connection is doing. The Oracle DBA can query the
CLIENT_INFO
column of
V$SESSION
to identify each Oracle connection the adapter is using. The identifiers for each service are:
•
InstanceId.ADBPubPolling
(publication service polling connection)
•
InstanceId.ADBPubUpdate
(publication service update connection)
•
InstanceId.ADBPubConfirm
(publication service confirm connection)
•
InstanceId.ADBSubscriber
(subscription service connection)
•
InstanceId.ADBRequestReply.n
(request-response service connection where n
is the thread
ID)
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Publishing in a Commitment Controlled Environment
This feature applies only to DB2 on iSeries.
You can enable the adapter to publish messages in a commitment controlled environment.
In its standard functionality the adapter generates and attaches database triggers to an application table that is the source for publishing data. A trigger program is activated on a database event on the source table (Insert, Update, Delete) and the trigger program uses the source table data to reflect the database event change on a publishing table.
Therefore, if the source table is being accessed by an application under commitment control, it is critical from a database integrity standpoint that the trigger program be part of the same commitment cycle.
To publish messages in a commitment controlled environment:
These steps assume that the trigger program is being generated by the palette in the RPG
ILE language.
1. Once the adapter is configured and saved in TIBCO Designer, the trigger programs will be compiled and attached to the source table. Log on to the iSeries system using a profile that has *PGMR rights to the library and source file where the trigger program is created. The trigger program is always created in a source file called
TIBCOSRC
that is in a library representing the DB2 collection.
2. Edit the trigger program member in the
TIBCOSRC
file by adding the keyword '
Commit
' on the F-Spec for the publishing table. An example is given below.
FP_EMPL O E
F
F
Disk Rename(P_EMPL:Pub_Record)
UsrOpn
Commit
Make sure that the application program that is accessing the source table is running with commitment control enabled. Otherwise, the trigger program will encounter a runtime error with this keyword.
3. After editing the trigger program member, save and compile it with options
DFTACTGRP(*NO)
and
ACTGRP(*CALLER)
. These options ensure that the trigger program runs as part of the calling application program's commitment cycle. The trigger program will run in the application program's activation group. Any database updates done by the trigger program will be done or undone by a Commit or Rollback issued by the application program, thus ensuring database integrity.
4. To have the trigger program run under commitment control, the publishing table
(listed in the trigger program) must be journalized. This can be done by using the
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STRJRNPF
. The journal that is being used to log changes to the source table can be used for the publishing table as well.
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Using the Adapter with a Revision Control System
TIBCO Designer supports revision control systems such as MicroSoft Visual SourceSafe and Perforce. If you are using a revision control system, you must manually add some configured resources to the revision control system and check in the resources when completing the instance configuration.
As part of service configuration, the adapter creates schema files in project_ root
>
AESchemas > ae > adadb. For example, if you configure a service in an adapter configuration instance1
, the following files are created: project_ root
> AESchemas > ae > adadb
> Instance1.aeschema
project_ root
> AESchemas > ae > adadb
> Instance1 > businessObjects.aeschema
When the project is saved and a revision control system has been specified, the adapter displays a warning that additional files were created and should be added to the revision control system. This warning appears only when the files are created for the first time. The warning displays a Go To Resource button that helps in navigating to the resource. You should select Multi-User > Add Resources to RCS to add these files to the revision control system.
For information about how to use the Multi-User feature in TIBCO Designer, see TIBCO
Designer User’s Guide.
Copy, Cut, Paste and Move Operations
To successfully copy and paste a service from adapter instance1 to instance2, the adapter configuration and schema files for the instance2 must be checked out.
To successfully cut and paste a service from adapter instance1 to instance2, the adapter configuration and schema files for both instance1 and instance2 must be checked out.
To successfully move a service from adapter instance1 to instance2, the adapter configuration and schema files for both instance1 and instance2 must be checked out.
Regeneration When Moving, Copying and Pasting
• Default subjects are not regenerated to reflect the new instance name when a service is moved.
• Manually changed certified messaging and certified messaging queue ledger file names are regenerated to defaults when a service is moved, or copied and pasted to a new instance.
• If a service associated with a custom session is moved, or copied and pasted, the custom session is not moved, or copied and pasted. The session is regenerated as a default session.
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Using a Log File for an Adapter Instance
By default all error, warning and information messages are printed in the console window in which the configuration was started and to a default log file. The log file can be located anywhere on your file system.
The adapter will trace to whatever sink is present in your adapter instance configuration. If you have the default sinks of stdioSink
and fileSink
, the adapter will write to both the file and stdout
.
Only errors that originate in the adapter instance itself are logged in the log file. Errors from other sources, for example TIBCO Rendezvous APIs or TIBCO Adapter SDK APIs, are not logged to a log file, but are printed to the console window where the configuration started.
Fine-tuning Tracing Attributes
The tracing facility allows you to fine-tune where and what different types of information are sent.
To access tracing attributes for an adapter instance:
1. In the Project tree panel, click the corresponding ActiveDatabase Adapter resource to select it.
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The TIBCO Designer window should look similar to the following:
2. Display the Logging Tab, as shown below.
The Log to Standard I/O checkbox is checked so that trace information can be written to the console window where the adapter instance was started. The log file is generated in the start directory unless specified otherwise in the properties file.
To disable file tracing for the adapter instance, delete this file name and click the Apply button.
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The following checkboxes control the level of trace information that is captured:
• Log Info Messages—Capture error and warning information.
• Log Debug Messages—Capture all available information.
• Log Warning Messages—Capture warning information only.
• Log Error Messages—Capture error information only.
Log File Size
When a log file name is specified in the Logging tab, the adapter does the following:
1. Creates a file with no extension, using the file name specified in TIBCO Designer.
2. Redirects all trace statements generated by this configuration to that file until it reaches the default file size of 30 KB.
3. When this file size is reached (that is, as soon as the file is greater than or equal to the limit), renames the current file to file
.1 and creates a new file with no extension.
Note that the log file can be slightly larger than the limit because the new file is only created after the limit has been reached.
4. Repeats this process of rolling log files and renaming files each time a new file is generated, until 3 log files exist.
With these default settings, the adapter instance overwrites the oldest file after 3 files have been created and the last file reaches 3 KB. For instructions on changing the default settings, see the next section.
Using Advanced Logging Features
The example in this section shows how to change default log file attributes in TIBCO
Designer.
To access advanced logging features in TIBCO Designer:
1. With the Logging tab selected in the Configuration panel, click the Use Advanced
Logging checkbox.
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2. Click the Apply button. The following information displays:
3. In the Project panel, navigate to adapter_instance_name
> Advanced > Log Sinks > fileSink
.
The TIBCO Designer window looks similar to the following:
File Limit (bytes)
Sets the maximum size of a log file. A global variable can be used for this field.
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File Count
Specifies the maximum number of log files that are created for this adapter instance. A global variable can be used for this field.
Append Mode
When this box is checked (the default), information is written to the log file in the Append mode, where trace information is appended to existing entries in the file.
Unchecking this box changes to Overwrite mode, where the adapter instance overwrites the current log file the next time the adapter starts.
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Using Database Deployment and Cleanup Scripts
Changing an existing adapter instance typically generates legitimate changes in the database. During this change process, the adapter creates a SQL script for changing the database objects and an associated cleanup script and stores them in the
TIB_ADADB_HOME
\sql
directory. If the legitimate database changes result in error messages, you may need to run these scripts. The messages and procedure for running the scripts are given in this section.
If the scripts created for legitimate database changes are not generated successfully, a message such as the following sample may display.
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If the scripts created for legitimate database changes are generated successfully but an error occurs while these changes are being saved to the database, a message such as the following sample may display.
To Run the Deployment Scripts
The generated SQL script for changes to database objects is stored in the instance_ name
.sql
file under the
TIB_ADADB_HOME
\sql
directory. You can modify this script to deploy changes to different databases environment. For example, if the user schema is different between the production and testing environment, you can change the schema name of the database objects in the script and deploy the changes accordingly.
To Run the Cleanup Scripts
1. Select each message in the top portion of the message window and read the explanation for it in the bottom portion of the message window.
2. In TIBCO Designer, close the project containing the adapter instance that you changed.
3. Fix the errors that caused the database changes to fail, as indicated by the messages.
4. If necessary, clean up the old database configuration by running the scripts created by the adapter. The scripts are in the sql
directory and are named instanceId
.sql or instanceId
.
undo.sql
, where instanceId
is the name of the adapter instance you changed.
5. Reopen the project in TIBCO Designer.
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6. Select the adapter instance you were attempting to change when the errors occurred.
7. Save the project.
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Changing the SQL Statement Terminator (DB2 for z/OS Only)
The SQL statement terminator by default is a semicolon ("
;"
), but DB2 trigger statements use embedded semicolons as part of their syntax. Because of this, adapter SQL statements use a pound sign ("#") as the SQL statement terminator.
When using the adapter in the default (real-time) mode, where repoOnly=false
, the SQL statement terminator is not used and no changes are necessary.
However, when running the adapter in batch mode ( repoOnly=true
), you must change the
SQL statement terminator from the default semicolon to the pound sign ("
#
") in order to avoid conflicts with DB2 trigger statements.
Common methods of changing the SQL statement terminator are:
• Use
SPUFI
to set the terminator to
#
in the default panel.
• Include the following control statement at the beginning of the script file, or immediately before the DDL statement to be executed:
--#SET TERMINATOR #
• Use
DSNTEP2
or
DSNTIAD
to code the
RUN
command as follows:
RUN PROGRAM(DSNTEP2) PLAN(DSNTEP61) PARMS(’SQLTERM(#)’)
Task A Change the Statement Terminator
The following steps change the statement terminator to a '#', then executes the SQL from the script file.
1. In a Windows command prompt, go to the directory where the script file resides.
2. Connect to DB2/OS390. For example:
C:\ your_directory
DB2 Connect to S390LOC user logon_id
using password
3. Execute your script file. For example:
C:\ your_directory
DB2 -td# -f filen_ame
4. In the Window's Command Center, go to the
Script
menu and select options.
5. Check the Use Statement Termination Character checkbox and enter '#'.
6. Connect to DB2/OS390 from the Command Center GUI. For example:
Connect to S390LOC user logon_id
using password
7. Cut the SQL statements from the script file and paste them into the Command Center
GUI, then execute.
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Fault Tolerance
Within the context of the adapter, a primary instance is the adapter instance that processes messages between the TIBCO environment and the database. The secondary instance uses the same adapter configuration but runs in a stand-by mode and takes over when the primary instance goes down.
To run in the fault tolerance mode, the property adb.mutex
has to be defined. The value of this property is the name of the table that an adapter instance will attempt to lock.
At start up, if the adb.mutex
property is present, the adapter will try to issue an exclusive lock on the table defined by the value of this property before processing any messages.
The named table is created at run time if it does not exist. The adapter instance that is able to lock this table is considered a primary instance. All instances that are not able to issue an exclusive lock on this table are considered secondary instances. Instances that specifies the same mutex table will be within a fault tolerance group.
The primary instance releases the lock prior to shutdown. If the primary instance terminates for an unknown reason, the lock is collected by the database system. As soon as the lock is released, one of the secondary instances will hold the lock and become the primary.
Both the primary and secondary instances will use a separate database connection to issue lock on the mutex table. The adapter will keep this connection active by executing a dummy query from time to time.
You can customize the adapter fault tolerance feature with the following adapter properties:
• adb.primary.heartbeat: The time interval that the primary instance will execute a dummy select statement to the database in order to keep the connection that hold the lock to remain active. Default value is 10000ms
• adb.secondary.heartbeat: The time interval that the secondary instance(s) will wait before sending the next query message to detect the existence of a primary instance.
Default value is 10000ms
• adb.heartbeat (deprecated): If none of the above parameter specified, this value will be used as both primary and secondary heartbeat. Default value is 10000ms
• adb.createMutexTable: By setting the TRA property to false, the adapter will not create the mutex table during start up. Default value is on. User can use the following
SQL statement to create the mutex table before starting the adapter:
CREATE TABLE mutex_table_name
(COL1 char(1))
• adb.maxQuery: The secondary instance will send a query message to detect the existence of the primary instance. This is the number of queries for which if no reply
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Fault Tolerance | 199 is received the secondary instance will consider that a primary instance no longer exists and will try to lock the mutex table.
• If the primary instance looses connection to the database, a reconnection will not be attempted. The adapter instance will release the lock and gracefully shutdown letting any secondary instance take over as the primary.
The time interval that the secondary instance(s) wait before attempting to lock the table specified by the adb.mutex
property is defined by the
adb.heartbeat and adb.maxQuery properties.
On Oracle, you have to set the
SQLNET.EXPIRE_TIME
in sqlnet.ora
script to a value greater than
0. This ensures that the server will collect the lock held by the invalid connection of the primary instance due to connection lost.
On DB2, make sure the
IDTHTOIN DSNZPARM
parameter is greater than adb.primary.heartbeat. This system parameter configures the timeout before the system cancels an idle thread.
Reconnection in the Fault Tolerance Mode
If the primary instance loses connection to the database, a reconnection will be attempted.
The adapter will perform reconnection base on the reconnection configuration, it will gracefully shutdown if reconnection is not successful, letting any secondary instance take over as the primary. If the secondary instance obtain the mutex lock while the primary instance is reconnecting, the secondary instance will take over as primary. The original primary instance will terminate if it cannot lock the mutex table after connection is re-established.
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SSL Data Encryption using DataDirect ODBC Drivers
SSL data encryptions provide secure transmission of data. The adapter supports SSL data encryption between the database and the adapter with DataDirect Wire Protocol ODBC
Drivers.
You may want to use data encryption in the following scenarios:
• You have offices that share confidential information over an intranet.
• You send sensitive data, such as credit card numbers, over a database connection.
• You need to comply with government or industry privacy and security requirements.
See ODBC Driver documentation for more information on the available features and the required configuration details.
Data encryption may adversely affect performance because of the additional overhead required to encrypt and decrypt data.
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OS Authentication | 201
OS Authentication
This release of the adapter provides SQL Server OS Authentication on Windows.
Microsoft SQL Server uses integrated login security to establish connections using this data source, regardless of the current login security mode at the server. Any login ID or password supplied is ignored. The Microsoft SQL Server system administrator must have associated your Windows network ID with a Microsoft SQL Server login ID.
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Query Timeout
This release of the adapter provides Query Timeout on all databases. The operation for database would return with error instead of hang if it can not be completed when the database server is busy. For the publication service, the polling operation would return null and wait for the next polling. For the subscription service, it would return the connection dead error, and then reconnect.
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Working with Multi-File Format Projects
The multi-file format creates one ActiveEnterprise XML file for each logical object (such as an adapter instance, a set of related ActiveEnterprise classes, or a TIBCO ActiveMatrix
BusinessWorks process flow) that occurs in the repository instance. This kind of project is referred to as a multi-file project.
Multi-file projects can be checked into a version control system, and a project can contain more than one adapter configuration. This allows a number of people to work on the same project at the same time, with different people working on each adapter configuration: a developer can check out the specific file corresponding to an object that needs to be changed, updated the file, and check it back in. TIBCO Designer accesses the local synchronized copies of the files on the developer’s hard drive.
The multi-file format provides a hierarchical structure with directories taking the place of
RepoDirectory nodes. In previous releases of TIBCO ActiveMatrix Adapter for Database, repository nodes contained references to other repository nodes (such as sessions and endpoints of that instance) using a format such as:
/tibco/public/endpoint/adapter/adb/test/instance1/publisher1
In the multi-file format, these references are replaced by URIs of the following form:
ProjectRoot
/ multi-file_project_name
/#type.name
For example, the first reference above would map to the following URI in a multi-file project:
ProjectRoot
/Adapters/adb/test/instance1/publisher1
For more information see TIBCO Designer User’s Guide.
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Subscriber Reply Sender
The subscriber can be configured to send the subscription status as a reply to the message sender if the message contains a reply subject. This AE schema
ADB_SUBSCRIBER_STATUS is used for this reply message:
Table 40 Description of ADB_SUBSCRIBER_STATUS Class Schema
Field Name
RETURN_CODE
AE Type i4
Description return_code=0, when the data is inserted into destination table successfully.
return_code=-1, when the data is inserted into exception table. return_code=5, when the data is failed to insert in both destination and exception tables.
If you specified subscriber pre-commit stored procedure, this field will contain the value of the RETURN_CODE output parameter.
ADB_TEXT
CALLOUT_TEXT string string
Contains the status or error message of the subscriber operation.
Contains the error message from the database driver in case of error operation.
If you specified subscriber pre-commit stored procedure, this field will contain the value of the SP_TEXT output parameter.
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Subscriber Pre-commit Stored Procedure Call
The subscriber can be configured to call a stored procedure after the database insert, update, or delete and prior to commit. You can use this stored procedure as a hook to accomplish further processing inside the database and return the results to the adapter.
User can specify this pre-commit stored procedure name in the Pre Commit Stored
Procedure field of the Subscription Service Subscriber Options.
The adapter will call the pre-commit stored procedure with the following syntax:
{call <pre-commit stored procedure name>(?, ?, ?)}.
This stored procedure need to be defined with a specific interface as specified below:
Table 41 Description of the Pre-commit Stored Procedure Parameters
Name
RETURN_
CODE
Type integer
Description
RETURN_CODE = 0, the adapter will assume the procedure was successful and write a success message to the SDK INFO trace role when the verbose mode is used.
RETURN_CODE <> 0, the adapter will assume the procedure was not successful and write
SP_TEXT
to the SDK ERROR trace role (whether verbose mode is on or off).
If the message has a reply subject, this output value will be returned to the message sender. See
Subscriber Reply Sender on page 204 for more details.
SP_TEXT varchar
DO_ROLL
BACK integer
If the message has a reply subject, this output string will be returned to the message sender. See
Subscriber Reply Sender on page 204 for more details.
DO_ROLLBACK = 0, the adapter will commit the transaction and confirm the original message.
DO_ROLLBACK <> 0, the adapter will rollback the transaction and not confirm the message. Note, not confirming the message changes the RVCM behavior. All subsequent RVCM messages will not be confirmed. It should only be done when this
RVCM behavior is really desired.
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JMS Durable Subscriber Name
The JMS Durable Subscriber name can take the deployment time global variable value in this release.
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Runtime Schema | 207
Runtime Schema
In the case where the schema name of the tables objects are different between development and production environment, you can use the following TRA properties to specify the schemas configuration.
For all database environments other than IBM UDB iSeries (AS00):
• adb.originalSchema
– Specify the design-time table objects schema.
• adb.runtime.schema
– Specify the runtime table objects schema.
— If adb.originalSchema
is specified, the adapter will compare the adb.originalSchema
with the prefix of the table objects. If they are the same, the adapter will replace the design-time schema with this runtime schema. Otherwise, no action will be taken.
— If adb.orignalSchema
is not specified, the adapter will append this runtime schema to all table objects that do not have any schema specified at design time.
• adb.runtime.publisherSchema
– Specify the runtime publisher table schema. This overrides the adb.runtime.schema
setting. This can be used if user has a different schema for the publishing table then the other table objects such as source table.
These configurations do not apply to the referred object in publish by reference mode.
User need to specify the runtime schema for the referred object during the design time, or in the ADB_REF_OBJECT column entry in the publishing table.
For IBM iSeries (AS00):
• adb.as400.defaultLibrary
– Specify the default iSeries library to be accessed.
• adb.as400.library
– Specify the name of the runtime iSeries library where the adapter will access.
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Runtime Table Schema Configuration
You can specify the runtime schema global variables in the administrator console during the deployment of the adapter to enable the adapter to use these schemas in run time which are different from the design-time schema configuration. This makes it easy for you to move from one environment to another, most likely from the test environment to product environment.
For publisher by reference object, you need to make sure the right schema and reference object name are set correctly in the right publisher table, because the reference object name is fetched from the publisher table, not an property from the design-time DAT file or
TRA file.
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Group Message Transaction
This feature allows you to configure a group message to be processed within a single transaction by the subscription service. The adapter will either commit the whole message changes to the database, or none. See
Subscriber Options Tab on page 82
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Load Balancing and Multithreading
TIBCO ActiveMatrix Adapter for Database supports multithreading and load balancing to improve the performance in high load scenario.
Improving Performance Using Threads
You can improve the adapter Subscription Service and Request-response Service performance by specifying the number of threads that will be responsible for processing application requests. The number of threads to be spawned is specified in TIBCO
Designer for an adapter instance.
To set the number of threads for a configuration:
1. In the Project panel, click the corresponding ActiveDatabase Adapter resource to select it.
The TIBCO Designer window should look similar to the following:
2. Check the Show All Tabs checkbox.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
3. Display the Adapter Services tab.
Load Balancing and Multithreading | 211
4. Change the value of Number Of Request-Response Service Threads or Number Of
Request-Response Service Threads as needed.
5. Click the Apply button.
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Subscription Service
You can select Use Separate Service Thread in the Subscriber Options tab during design time. When selected, a new session is created and the service endpoint is moved to this session.
During runtime, the adapter will create a separate dispatcher to dispatch event from this session. You can select other subscription service to use the same session by changing the sessionReference field under the Advanced tab. This allows multiple services to share the same session and dispatcher.
Request-Response Service
Each request-response service thread is dedicated to listening on an agreed request subject.
1. When a request message is received by the request-response communication thread, it enqueues it into an in-memory queue. Each database request-response thread has a
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Load Balancing and Multithreading | 213 connection to the database using the user name-password combination that was provided to the adapter.
2. When an item is enqueued by the communication thread, one of the database request-response threads picks it up and executes the one or more SQL statements in the message as an atomic transaction.
3. It then composes a TIBCO Rendezvous self-describing response message and sends back a response on a response subject. If the original request was sending using rv_SendWithReply()
or rv_Rpc()
, the response is sent back on the subject that was specified by the requesting application. Otherwise, the response is sent back on the subject that was set up at configuration time.
While the request message can be sent with either reliable or certified quality of service, the response message is always sent back using the reliable quality of service.
Load Balancing Across Adapter Instances
Subscription and Request-Response Service
To achieve load balancing across adapter instances for subscription and request-response services, TIBCO Rendezvous Distributed Queueing or TIBCO EMS Queue can be used to assign each application request to exactly one adapter instance. For example, the following diagram is an example for using TIBCO Rendezvous Distributed Queueing for load balancing. It shows three adapter instances each connected to a database server (not shown) that contains replicated data.
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Figure 6 Request-response Load Balancing
Request
Distributed Queue
Adapter 4
Request
Request
Adapter 1
(Scheduler)
Request
Adapter 3
Adapter 2
TIBCO Messaging
Responses
Application
The adapter instances have been set up to use distributed queueing with one instance acting as the scheduler. Only one of the three adapter instances will receive an incoming request from an application. The scheduler will assign certified requests to the least loaded member of the queue.
A queue member’s load is determined by the number of pending processes that are waiting to be processed by the member’s database request-response thread. After the request is processed, the processing configuration sends a response back to the requesting application.
Reliable requests in a certified environment use a simpler type of load balancing. In this example, the scheduler distributes the first reliable request to
Adapter 2
, the second to
Adapter
3
, and the third to
Adapter 4
without evaluating a queue member’s load.
Configuring an Adapter Instance to use TIBCO Rendezvous Distributed
Queues or TIBCO EMS Queue for Load Balancing
You can configure the adapter with a subscription service to use a distributed queue, then use TIBCO Administrator Enterprise Edition to deploy multiple instances of the adapter.
The instances can be deployed on the same machine, or multiple machines. In this scenario, each adapter instance uses the same (default) values for the distributed queue.
1. Start TIBCO Designer and create a new project.
2. Drag the ActiveDatabase Adapter Configuration icon to the design panel.
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3. Configure the adapter instance with a design-time connection and
ODBC DSN
value.
4. Drag the ADBSubscriber icon to the design panel.
5. For using TIBCO Rendezvous transport, under the Configuration tab, select
Rendezvous in the Transport Type drop-down list, and Distributed Queue in the
Quality of Service drop-down list. For example:
For using TIBCO EMS Queue, set Transport Type to JMS and Quality of Service to
Queue.
6. Configure the service with a destination table name and other settings for your environment.
7. Click Project > Save.
8. Click Tools > Create Project EAR. Under the Configuration tab, provide a name and file location for the EAR file.
9. Click the Build Archive button.
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Publication Service
You can check the Enable Load Balancing checkbox and specify the Mutex Name in the
Publisher Options tab during design time to balance load among multiple publication service endpoints. Publication service with the same Mutex name specified will be in the same load balance group.
When load balancing is enabled at design time, the adapter palette will create a publication table with an additional column
ADB_MARK
.
At runtime, the publication services of the same load balancing group will create a mutex table that was configured at design time, and poll the same publication table and distribute loads. The service will synchronize by locking the mutex table to obtain and update the sequence information.
When an adapter instance contains a publication service with load balancing enabled, it can only run in batch polling mode. To turn on batch polling, enable the Use Polling
Batch Size option and specify the Polling Batch Size for the adapter instance.
For Sybase, the publisher load balancing feature requires the ddl in tran
option be set to true: sp_dboption database_name,"ddl in tran", true
Deploying an Adapter Instance for Load Balancing
After creating the EAR file, you are ready to import it into TIBCO Administrator
Enterprise Edition and add the adapter instance multiple times to the same machine or multiple machines. Since these adapter instances have the same RVCMQ, EMS Queue, or
Mutex Name for publication configuration, they will participate as in same load balancing group at runtime.
1. Start TIBCO Administrator Enterprise Edition.
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2. Select Application Management, then click the New Folder button. In
Name
, provide a name for the folder and click the Save button.
3. Select the folder, then click New Application.
4. Click the Browse button and navigate to the EAR file you created in Designer. Click the OK button.
5. In the dialog that appears, click the Save button.
6. Expand the configuration, then double-click the name
.aar file.
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7. Click the Add to Additional Machine button and select the machine to bind to and click the OK button.
8. Repeat to create the number of adapter instances required for your environment. For example, the next screen shows that three adapter instances have been added.
9. Click the Save button.
The adapter instances are ready to be deployed. After the instances are deployed, when a message is sent to the adapter, the instance that is not busy will handle the request.
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Compressing JMS Messages
JMS message compression is an instance-level option. It is especially useful when messages are to be stored on the TIBCO Enterprise Message Service server, including persistent queue messages, or topics with durable subscribers. Enabling compression ensures that messages take less memory space in storage and are handled faster by the
TIBCO Enterprise Message Service server. When JMS messages are compressed and stored, they are handled by the server in the compressed form.
The compression option only compresses the body of a message. Headers and properties are never compressed. It is best to enable compression when the message bodies are large and the messages are to be stored on a server.
When messages are not to be stored, compression is not as useful. Compression normally takes time, and therefore the time to send or publish and receive compressed messages is generally longer than the time to send the same messages uncompressed. There is little purpose to message compression for small messages that are not to be stored by the server.
You can enable or disable this feature for message senders with the following adapter property:
• adb.jmscompress
:
Either on
or off
. The default value is off
, which indicates that messages will not be compressed
.
JMS message compression is only for publication service with JMS transport.
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Configuring RVCMQ Backlog Size
The RVCMQ scheduler receives the inbound messages and assigns them to the worker.
The scheduler stores tasks in a message queue. You can limit the maximum size of that queue with either one of the following two adapter properties or both of them:
• adb.taskBackLogLimitInBytes
: Specifies the maximum size of the scheduler task queue by number of bytes. This value must be an integer. The default value is unspecified.
• adb.taskBackLogLimitInMessages
: Specifies the maximum size of the scheduler task queue by number of messages. This value must be an integer. The default value is unspecified.
When the task messages in the queue exceed either of these limits, TIBCO Rendezvous deletes new inbound task messages.
If neither of the above properties are specified, there will be no limit to the size of the scheduler task queue.
RVCMQ backlog size configuration is for subscription and request-response services only, which have RVCMQ or RVDQ transport, not for publication service, which does not have this transport type.
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Chapter 10
Setting Encoding Options
This chapter describes how to use TIBCO ActiveMatrix Adapter for Database in an international environment using non-ASCII languages.
| 221
Topics
•
Overview, page 222
•
Setting TIBCO Messaging Encoding, page 224
•
Configuring the Adapter to Communicate with the Database, page 226
•
Relevant Environment Settings, page 231
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Overview
TIBCO ActiveMatrix Adapter for Database provides internationalization support by taking advantage of Unicode, which is supported by the TIBCO Adapter SDK. Currently the international data support is provided for text data only.
The following illustration shows an example of TIBCO ActiveMatrix Adapter for
Database in a Japanese language environment serving databases of different encodings.
The adapter converts the encoding between Unicode and the character sets of the databases.
Figure 7 Example of Unicode Conversion
Oracle DB in Shift-JIS
Oracle DB in
EUC-JP
Driver Manager/ODBC Driver/Database Client
Shift-JIS EUC-JP
Adapter Publishing
Service
UTF-8
Adapter
Subscription Service
UTF-8
TIBCO Messaging
In this example, Shift-JIS encoded Japanese data is retrieved from an Oracle database by the adapter publication service, which converts the data into UTF-8 and publishes the
UTF-8 data to the TIBCO messaging environment. An adapter subscription service receives this message and converts it from UTF-8 to EUC-JP, and inserts the data into an
Oracle EUC-JP database to which it is connected.
By using UTF-8 as the TIBCO Messaging encoding between TIBCO ActiveEnterprise components, the two adapter services can serve databases of different encodings by exchanging data without data garbling it.
In certain cases, intermediate entities (such as an ODBC driver, ODBC driver manager, or the database vendor's proprietary database client) may also perform some encoding conversion.
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In circumstances where only ASCII and Latin-1 data (including English and Western
European languages) are exchanged in the system, you can use Latin-1 encoding as the
TIBCO Messaging encoding between TIBCO ActiveEnterprise components. It is not necessary to use UTF-8 as the TIBCO Messaging encoding in this case. UTF-8 is only required when the data to be exchanged is not included in the Latin-1 character set, as is the case with Asian languages and other European languages.
To configure the adapter to work correctly in transmitting non-ASCII data, you must set the TIBCO messaging encoding property. The following sections explain how to do this.
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Setting TIBCO Messaging Encoding
TIBCO ActiveEnterprise components (TIBCO applications and adapters) use TIBCO
Messaging encoding when communicating with each other. In the case of TIBCO
ActiveMatrix Adapter for Database, publication services use this encoding to publish data into TIBCO messaging system, and subscription services use it to receive data from the
TIBCO messaging system.
The services do not use TIBCO Messaging encoding to connect to the backend database.
Configuring the Adapter to Communicate with the Database on page 226
for more information.
There are currently two choices for TIBCO Messaging encoding: Latin-1 (ISO8859-1) for transmitting ASCII and Latin-1 data, and UTF-8 for transmitting data of other languages.
The encoding property is set on the project itself at design time, and in the TIBCO administration server’s property file when creating a TIBCO administration domain.
Encoding in a Server-based Project
The TIBCO administration server setting is used when the project is exported to a server repository or deployed using TIBCO Administrator Enterprise Edition.
For a server based project, the TIBCO messaging encoding is set by the repo.encoding
property in the server's tibcoadmin domain_name
.tra configuration file (located in
TIBCO_HOME
/administrator/ version
/bin/
).
The encoding is set when using the TIBCO Domain Utility to create the domain or by editing the repo.encoding
property in the TRA configuration file.
Each adapter or TIBCO application that uses the same server for storing and retrieving configuration data uses this encoding setting when communicating to each other. This assures that all TIBCO components (including adapters and other TIBCO applications) that belong to the same project use the same encoding value to communicate.
Encoding in a Local Project File
If the project's configurations are saved in a local project file, which is the normal case when the project is in design stage before deployment, the TIBCO Messaging encoding is determined by the encoding property saved in the local project file.
The encoding value is set on the root project folder in TIBCO Designer. By default, the value is set to
ISO8859-1
. You can change the value by selecting the folder and under the
Project Settings tab, changing the value for the TIBCO Message Encoding field.
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In order for different TIBCO components that each have their own local file repository to communicate with each other without data garbled, they must use the same TIBCO
Messaging encoding, meaning that all these components must set their local project encoding to the same value.
The encoding property of a local project file is only for determining the TIBCO
Messaging encoding, not the encoding used for the persistent storage of the project files.
The project files are always saved as UTF-8 encoded files.
After a project is deployed as a server-based project, the encoding property set at design time is superseded by the encoding property set for the TIBCO administration server.
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Configuring the Adapter to Communicate with the Database
The TIBCO message encoding is a project setting used for data conversion among different components. However, the adapter uses a different encoding value for exchanging data with the database. Because there are many intermediate entities between the adapter and the database (such as the ODBC driver manager, ODBC driver, and possibly the database native client), and each of these entities may conduct encoding conversions to the data stream flow between the service and the database, the data encoding from the database might not be known, while the data encoding to the database must be compatible to that of the database.
To eliminate the complexity introduced by these intermediate entities, you can make some configuration changes that ensure the service’s encoding setting are compatible with the database instance's encoding. This also boosts the performance by eliminating unnecessary intermediate data conversions.
The configuration changes differ depending on the operating system that the service is running on, the database vendor, the ODBC driver used, and other factors. The following sections explain how to configure the adapter to communicate with the database.
Configuring the Adapter at Design Time
Use the following steps to set the adapter’s encoding.
1. Determine your database server encoding. This is the encoding you want to use for the adapter’s encoding. For example, for the Oracle database, the encoding can be found by querying the database with: select * from nls_database_parameters;
2. Set the NLS_LANG environment variable for the client system.
Set the client machine's NLS_LANG environment variable to be consistent to the database instance's character set (NLS_CHARACTERSET) value. The client machine is where the adapter service is going to run. Consult your database administrator for the NLS_CHARACTERSET value of the database instance to connect to, and how to choose the right NLS_LANG value.
As an example, the system may use an Oracle database instance with the
NLS_CHARACTERSET value set to JA16SJIS. In this case, the client machine's
NLS_LANG environment variable must be set to JAPANESE_JAPAN.JA16SJIS.
The correct setting of the NLS_LANG environment variable eliminates the encoding conversion possibly conducted by the Oracle proprietary client.
3. Set the Adapter encoding in TIBCO Designer.
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You must select or enter a valid encoding that the adapter understands. The adapter assumes the data coming from the database is in this encoding and ensures that data sent to the database is in this encoding. The encoding given here should match the encoding set for the database to which the adapter connects.
There are two ways to do this configuration:
— In TIBCO Designer, set this in the adapter resource. In the Configuration tab, check the Show All Tabs checkbox. In the General tab, choose the encoding that is compatible with the encoding of the database instance to be connected to. See
Table 43, TIBCO ActiveMatrix Adapter for Database and Oracle NLS_Lang
Values
The adapter may support more encoding values than those shown in TIBCO
Designer. You can type in these encoding values. For more information about these, See Appendix B in TIBCO Adapter Concepts.
— You can modify the adapter encoding property, adb.encoding
, in the adapter’s TRA configuration file. This setting supersedes the encoding option chosen in TIBCO
Designer.
4. Set the ODBC DSN in TIBCO Designer
This field is set under the adapter’s Runtime Connection tab. You must also define the
ODBC DSN on the machine on which the adapter is running.
— On Unix systems, modify the odbc.ini
file
TIB_ADADB_HOME
/odbc
. In addition, you must set the correct
IANAAppCodePage
to match the database encoding, if you are
using a wire protocol driver. See
Table 42, IANAAppCodePage, on page 227
for a list of
IANAAppCodePage
values. The complete list is available in
TIB_ADADB_HOME
/odbc/help/odbcref/odbcref.pdf
— On Windows systems, use the Windows ODBC GUI to define a system DSN. Note that if you are using a TIBCO wire protocol driver, the machine on which the adapter is running must be on the locale that matches the database encoding.
Table 42 IANAAppCodePage
Value
3
Encoding (Language)
ASCII (English)
4
17
18
38
113
ISO_8859-1 (Western European)
Shift_JIS (Japanese)
EUC_JP (Japanese)
EUC_KR (Korean)
GBK (Simplified Chinese)
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Table 42 IANAAppCodePage (Cont’d)
Value
2026
Encoding (Language)
BIG5 (Traditional Chinese)
Using a non-Oracle Database
When using a database other than Oracle, contact the database vendor for information about whether the database's proprietary client performs any encoding conversion to the data flow, and how to configure the database client to eliminate the conversion possibly conducted by it. Several possibilities exist:
• The database client does not perform any conversion to the data flow in any cases. In this case, you only need to set the adapter encoding to be compatible with the database instance's encoding.
• The database client relies on a local setting, such as an environment variable, to determine whether or not a conversion should to be conducted. This is similar to the above Oracle example, where you need to set both this local setting and the adapter’s adapter encoding property to be compatible with the database server instance's encoding.
• The database client relies on the local system encoding to determine the conversion.
— When the local system encoding is compatible with the database instance encoding, no conversion will be conducted by the database client. You only need to set the adapter encoding to be compatible with the database server instance encoding;
— When the local system encoding is different from the database instance's encoding, the proprietary database client may do the encoding conversion between the two different encodings. This conversion cannot be avoided by any settings you can make. In this case, set the adapter encoding to be consistent with the local system encoding, because the data from the database has been converted to local system encoding by the database client.
When using the DataDirect non-wire protocol ODBC driver and UTF-8 as the adapter encoding to support multilingual data exchange, the configuration is totally different. See
Special Configurations for Supporting a UTF-8 Database on page 228
.
Special Configurations for Supporting a UTF-8 Database
This section applies only to TIBCO ODBC drivers.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Configuring the Adapter to Communicate with the Database | 229
Companies doing business globally may require their database to be multilingual, that is, a single database instance supporting multiple languages so the data from the company's global business can be stored in it. Unicode is a natural choice for the encoding of this kind of database instance.
This requires the adapter to be able to use Unicode, or specifically, UTF-8 encoding, to communicate with the database. While this is already a supported feature, an exception exists when using TIBCO ODBC drivers.
TIBCO ActiveMatrix Adapter for Database contains a binary mode for use with an embedded TIBCO driver when UTF-8 is the encoding to communicate with the backend database instance. The configurations described below are applicable to both Windows and UNIX platforms, and both non-wire and wire protocol drivers.
1. Set the adapter’s encoding option to
UTF8
.
2. In the adapter’s
.tra
file, uncomment the following line:
#ADB.WCHAR = SQL_C_BINARY
This forces the adapter to use binary mode to communicate with the database.
3. Set the
NLS_LANG
environment variable to language
_ territory
.AL32UTF8
or language
_ territory
.UTF8
if using vendor or DataDirect non-wire driver.
These are for the internationalization configuration, which forces the adapter to use binary mode to communicate to the database instance. No further encoding related configurations are necessary. For example, on UNIX there is no need to set the
AppCodePage
attribute, and when using a non-wire driver there is no need to set the proprietary database client.
Special Configurations for Retrieving Unicode Data from Database
To retrieve unicode data from unicode character data types such as NCHAR and
NVARCHAR, the following adapter properties are required: adb.unicode
— specify the unicode type of the data, either UTF8 or UTF16 adb.wchar — specify whether to retrieve the unicode code as character or binary string.
When adb.unicode
is set, the adapter will automatically set the value of this property to
SQL_C_BINARY
.
When the adb.unicode
option and the database national character set are both UTF8, the adapter will add blanks after string values in published mess a age for nchar/nvarchar2 column.
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Runtime Environment Variables
In general, after deploying the adapter, all information should be in the correct place, however you should verify the deployed TRA file and platform settings. The encoding conversion is dependent on the TIB_ICU_DATA environment variable. The deployed adapter TRA file should have a property called tibco.env.TIB_ICU_DATA
. Make sure it points to the directory containing the tibicudata.dat
file.
For the Oracle database, make sure the installed NLS_LANG attribute’s value matches the database character set. If not, set NLS_LANG to the correct value before starting the adapter. See
TIBCO ActiveMatrix Adapter for Database and Oracle NLS_Lang Values on page 231
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Relevant Environment Settings | 231
Relevant Environment Settings
Shift_JIS (CP943)
Shift_JIS (TIBCO)
KSC-5601
Big5
In order to support international languages, the adapter uses the tibicudata.dat
file to convert between the original database encoding and the TIBCO Messaging encoding (usually
UTF-8). The environment variable TIB_ICU_DATA is already configured to point to the directory containing this file. Do not change this setting.
This environment variable setting is required on both Windows and Unix platforms.
The following table lists the TIBCO ActiveMatrix Adapter for Database encoding values as shown in TIBCO Designer.
Table 43 TIBCO ActiveMatrix Adapter for Database and Oracle NLS_Lang Values
Adapter Encoding
ASCII
Oracle NLS_LANG (containing
NLS_CHARACTERSET)
US7ASCII
Description
7-bit ASCII
ISO8859-1 language_territory.WE8ISO8859P1 ISO8859-1 (Latin-1), West European
JAPANESE_JAPAN.JA16SJIS
JAPANESE_JAPAN.JA16SJIS
Japanese Shift-JIS, CP943
Variant of IBM-943 (created by TIBCO for flavoring some MS-932 conversions)
Korean KSC-5601
Traditional Chinese Big5 with Euro
GBK
EUC-JP
UTF8
KOREAN_KOREA.KO16KSC5601
TRADITIONAL
CHINESE_TAIWAN.ZHT16BIG5
SIMPLIFIED CHINESE_CHINA.
ZHS16CGB231280
JAPANESE_JAPAN.JA16EUC
AMERICAN_AMERICA.UTF8
Simplified Chinese GBK (superset of
GB2312-80)
Japanese EUC
Unicode Transformation Format-8
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TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Chapter 11
Monitoring the Adapter
Read this if you have installed TIBCO Hawk and want to use TIBCO Hawk microagents through the Monitoring tab of an adapter instance. TIBCO Hawk is an optional tool from
TIBCO Software Inc. that can be used in addition to the standard trace message logging method described under
Logging Tab on page 49
).
| 233
Topics
•
Overview, page 234
•
Starting TIBCO Hawk Software, page 235
•
The Auto-Discovery Process, page 236
•
Invoking Microagent Methods, page 237
•
Available Microagents, page 240
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Overview
TIBCO Hawk is a sophisticated tool for enterprise-wide monitoring and managing of all distributed applications and systems. System administrators can use it to monitor adapters in a wide area network of any size. TIBCO Hawk can be configured to monitor system and adapter parameters and to take actions when predefined conditions occur. These actions include: sending alarms that are graphically displayed in the TIBCO Hawk display, sending email, paging, running executables, or modifying the behavior of a managed adapter.
Unlike other monitoring applications, TIBCO Hawk relies on a purely distributed intelligent agent architecture using publish or subscribe to distribute alerts. TIBCO Hawk uses TIBCO Rendezvous for all messaging and thus gains the benefits and scalability from the TIBCO Rendezvous features of publish/subscribe, subject name addressing, interest-based routing, and reliable multicast.
TIBCO Hawk is a purely event-based system that uses alerts. The agents are configured with rules that instruct them on everything from what and how to monitor to what actions to take when problems are discovered. Thus the workload is fully distributed throughout the enterprise. Every agent is autonomous in that it does not depend on other components to perform its functions.
The TIBCO Hawk Enterprise Monitor consists of these components:
• Display—GUI front end that displays alarms and provides editors to create rule bases, create tests, view messages, and invoke microagents to request information or initiate an action.
• Agents—Intelligent processes that perform monitoring and take actions as defined in rules.
• Rulebases—Rules that are loaded by agents to determine agent behavior.
• Application Management Interface (AMI)—Manages network applications via
TIBCO Rendezvous and supports communication between a network application and monitoring TIBCO Hawk agents, including the ability to examine application variables, invoke methods, and monitor system performance.
• Microagents—Feed information back to TIBCO Hawk and expose action methods to rulebases.
For more information, see the TIBCO Hawk documentation.
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Starting TIBCO Hawk Software | 235
Starting TIBCO Hawk Software
The TIBCO Hawk agent can be configured to start automatically during the system boot cycle. See TIBCO Hawk Installation and Configuration for information about starting
TIBCO Hawk.
TIBCO Hawk Administrator’s Guide explains how to start the TIBCO Hawk Display.
The guides are included in your TIBCO Hawk software installation area.
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The Auto-Discovery Process
After you start an instance of TIBCO Hawk Display, it continually discovers machines running TIBCO Hawk Agents on your network. Container icons are created for each agent, and arranged hierarchically in clusters. By default, agent icons are clustered according to subnets.
At first, the Agents container is empty. Its counter displays a value of zero and, on the right, the Discovered counter is also at zero. Both icons are initially green in color to show that no alerts, or warning messages, are in effect. As agents are discovered, the counters increment to reflect the current number of discovered agents:
Monitored network nodes are arranged in a hierarchical tree of containers. Clicking a container in the left panel displays nested items on the right.
Icon colors change to reflect the highest level of alert found on discovered agents. For explanations of icon elements and characteristics, see TIBCO Hawk Administrator’s
Guide.
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Invoking Microagent Methods | 237
Invoking Microagent Methods
A set of default microagents is loaded when a TIBCO Hawk Agent is started. When you install and start TIBCO ActiveMatrix Adapter for Database, its microagents are dynamically added to the local agent.
To invoke a microagent method:
1. In TIBCO Hawk Display, right-click on the agent icon and select Get Microagents.
If TIBCO Hawk security is implemented on your system and you do not have access to microagents on this agent, an error dialog displays. Select another agent, or contact your system administrator to obtain access.
The Microagents, Methods and Arguments dialog displays. The panel on the upper left lists microagents you can access on the current agent.
This dialog has two modes, Invoke and Subscribe. Invoking a method immediately returns a single set of current results. Subscribing provides updates of current results at regular intervals. Radio buttons at the bottom of the dialog control these modes.
2. Click a microagent name, such as Self, to display a list of associated methods and text descriptions in the panels below.
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3. Click the name of the method to invoke, such as getComponentInfo
.
If the method accepts arguments, fields for each argument display in the upper right panel. Detailed help text displays in the lower panel.
4. Specify any arguments for the method invocation.
5. Verify that the Invoke radio button is selected.
6. Click the Invoke button to invoke the selected method.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Invoking Microagent Methods | 239
The Invocation Results dialog displays the results returned by the method.
7. Click the Done button to close the dialog.
These steps describe how to interactively invoke a microagent method and receive a single set of results in TIBCO Hawk Display. You can also use a microagent method as the data source of a TIBCO Hawk rule. Rules automatically receive method results, apply tests to evaluate them, then take action if necessary. For more information on building TIBCO
Hawk rules and rule bases, see TIBCO Hawk Administrator’s Guide.
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Available Microagents
Each adapter has three microagents: a standard TIBCO Hawk microagent, a class microagent, and a custom microagent.
Microagents follow different naming conventions depending on how an adapter is started: from TIBCO Designer, or from TIBCO Administrator.
When an adapter is started in TIBCO Designer or through a console, the available microagents follow the below naming conventions:
• Standard Microagent:
COM.TIBCO.ADAPTER.adb.%%Deployment%%.%%InstanceId%%
• Class Microagent:
COM.TIBCO.adb.%%Deployment%%.%%InstanceId%%
• Custom Microagent:
COM.TIBCO.adb.custom.%%Deployment%%.%%InstanceId%%
When an adapter is started from a deployed project in TIBCO Administrator, the available microagents follow the below naming conventions:
• Standard Microagent:
COM.TIBCO.ADAPTER.adb.
domain_name
.%%Deployment%%.%%InstanceId%%
• Class Microagent:
COM.TIBCO.ADAPTER.adb.%%Deployment%%.%%InstanceId%%
• Custom Microagent:
COM.TIBCO.adb.custom.%%Deployment%%.%%InstanceId%%
These microagents provide:
• Business level statistics—statistics that report the progress of the adapter as it interacts with the database. For example, in a database adapter such statistics might indicate whether objects were successfully or unsuccessfully inserted, updated, or deleted in the database.
• Queries that return information about the state of the adapter. This can be an important tool for seeing the internals of an adapter and debugging it if something appears wrong. For example, methods can return information about threads, internal queues, or connections to the target system. Using these methods, one might be able to identify certain bottlenecks or gauge how successfully an adapter is scaling with respect to the current environment.
• Updates of the adapter runtime parameters. This includes retrieving the current runtime parameters and setting new runtime parameters without restarting the adapter.
An example of this is getting and setting the polling interval. Updating a runtime parameter through the Hawk microagent only affects the setting of the instance that is
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Available Microagents | 241 running. It does not make a permanent change of the setting in either the repository or the
.tra
file.
The following table lists each method available for the adapter. Although the Microagents,
Methods and Arguments dialog in TIBCO Hawk Display lists more methods than are documented here, only the following methods are supported.
Table 44 Standard Microagent Methods
Standard Method
Description
Activates a mapping of a role to a sink at runtime.
getAdapterServiceInformation()
Deactivates a mapping of a roles to sinks at runtime.
Returns information about the services implemented by this adapter.
Returns information about the publisher, subscriber and
IODescriptor.
Returns basic configuration information. More specific information is accessed by the more specific methods.
Returns a list of publishers and subscribers.
Returns standard and extended application information.
Returns information about all TIBCO Rendezvous sessions defined.
Returns general status information, such as the number of TIBCO Rendezvous messages received and published, the number of errors since the last call, the
PID of the application, and more.
Returns information about sinks to which traces currently go.
Returns the configuration ID, application name, version, and date for this adapter instance.
Displays alert messages sent to the current adapter.
Preregisters an anticipated listener.
Returns information retrieved from the ledger file of a certified messaging session for a publisher adapter.
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Table 44 Standard Microagent Methods (Cont’d)
Standard Method
Description
Adds a role or changes the file limit of a previously specified sink.
Stops the running adapter instance.
Unregisters a currently preregistered listener.
Table 45 Custom Microagent Methods
Custom Method
Description
Retrieves the size of the TIBCO Rendezvous event queue for the specified adapter instance.
Sets the debug level for the current adapter instance.
Changes the value of the verbose flag from on to off, or the reverse.
Shows the configuration defined for the current agent.
Stops the current TIBCO ActiveMatrix Adapter for
Database agent.
Returns the current polling interval setting.
Set the polling interval for the publication service.
Get the polling batch size for the publication service.
Set the polling batch size for the publication service.
Table 46 Custom Microagent Methods with adb.perfMon
Custom Method
Description
Returns the total number of objects processed for all the schemas, based on the request type. Also, returns the number of success and error objects.
getActivityStatisticsByService
getActivityStatisticsByOperation()
Returns the total number of objects processed for each of the schemas associated with the specified service.
Returns the total number of objects processed for all the schemas by each service that is associated with a specified operation.
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Available Microagents | 243
Table 46 Custom Microagent Methods with adb.perfMon (Cont’d)
Custom Method
Description
Return the operation counts of the current threads.
Return the current count of elements in any internal queue used by the adapter.
Returns the state and statistics for all the current connections used by the adapter.
Resets all the counts for the activity statistics.
Resets all the counts for the thread statistics.
Resets all the counts for the queue statistics.
Resets all the counts for the connection statistics.
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activateTraceRole()
Purpose
Parameters
(Standard) Activates a mapping of a role to a sink at runtime. This replaces the now-deprecated setTraceSink()
TIBCO Hawk method.
Parameters roleName sinkName
Type string string
Description
Name of the role to activate.
Name of a sink for which to activate the role.
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deactivateTraceRole() | 245
deactivateTraceRole()
Purpose
Parameters
(Standard) Deactivates a mapping of a roles to sinks at runtime.
Parameters
Role Name
Sink Name
Type string string
Description
Name of the role to activate.
Name of a sink for which to activate the role.
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getAdapterServiceInformation()
Purpose
Parameters
(Standard) Returns information about the services implemented by this adapter. The information is a summary of available adapter services.
Parameter
Service Name
Type string
Description
Name of the service from which to get information.
Default is
ALL.
Returns
Returns
Line
Name
Endpoint
Type
Quality of Service
Type
Integer string string string string
Adapter Name
Session Name string string
Subject string
Number of Messages Integer
Description
Sequential row number.
Name of the Service.
Name of the endpoint used for this service.
Type of the endpoint, for example, Publisher,
Subscriber.
Quality of service for the endpoint, for example,
RV, RVCM.
Name of the application for this sink.
Name of the TIBCO Rendezvous session.
Subject defined for this endpoint
Number of messages processed for this endpoint.
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getComponents() | 247
getComponents()
Purpose
Parameters
(Standard) Returns information about the currently active TIBCO Hawk components such as publishers, subscribers, or timers.
Parameters
Component Name
Component Type
Type string string
Description
Name of the TIBCO Hawk component. Default is all components.
Any of
Publisher
,
Subscriber
,
Timer
, or
IODescriptor
. The default value is
All
.
Returns
Returns
Component Name
Instance ID
Adapter Name
Session Name
Component Type
Description
Type string string string string string string
Description
Name of the TIBCO Hawk component.
Name of this adapter instance.
Name of the adapter.
Name of the TIBCO Rendezvous session.
The name of the TIBCO Adapter SDK class for this
TIBCO Hawk component, such as
MPublisher
,
MSubscriber
, or
MIODescriptorSource
. For more information, see your TIBCO Adapter SDK documentation.
Information about this TIBCO Hawk component, for example, time interval, signal type, validating publisher
(or subscriber) etc.
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getConfig()
Purpose
Returns
(Standard) Retrieves generic configuration information. More specific configuration information is accessed through separate methods.
Returns
Instance ID
Adapter Name
Repository
Connection
Configuration URL
Type string string string string
Description
Configuration ID of this adapter.
Name of the adapter.
URL of the repository used for adapter instance.
Command string
Location of the adapter project; either a file name or configuration URL.
Command line arguments used to start the adapter.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
getConfigProperties() | 249
getConfigProperties()
Purpose
Parameters
(Standard) Returns all attributes and elements for the given repository object.
Parameter
Property
Type string
Description
Name of the property for which elements (tags) and attributes are desired. For example, rvpub/startup
.
If no value is given, all properties are returned.
Returns
Returns
Element Name
Attribute Name
Attribute Value
Line
Type string string string integer
Description
Repository directory for the property.
Name of the repository object attribute.
Value of the repository object attribute.
Line number in which this property is defined in the project file.
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getHostInformation()
Purpose
Returns
(Standard) Returns standard and extended application information.
Returns
Name
Value
Type Description string string
Name of the property.
Value of the property.
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getRvConfig() | 251
getRvConfig()
Purpose
Parameters
(Standard) Returns information about the TIBCO Rendezvous session defined by this adapter. Information about all currently defined sessions is returned if no sessionName
is provided.
Parameter
Session Name
Type string
Description
Name of the TIBCO Rendezvous session for which configuration is required (default is all).
Returns
Returns
Instance ID
Adapter Name
Session Name
Service
Daemon
Network
Synchronous?
Session Type
Certified Name
Ledger File
CM Timeout
Type string string string string string string boolean string string string string
Description
The configuration ID of this adapter.
Name of the adapter.
Name of the session.
Service parameter for this session.
Daemon parameter for this session.
Network parameter for this session.
Returns
1
if this is a synchronous session,
0
otherwise.
Type of session; one of
M_RV
,
M_RVCM
, or
M_RVCMQ
.
Name of this certified session.
Ledger file for this certified messaging session. Returns the empty string for sessions that are not certified messaging sessions.
Timeout for this certified messaging session. Returns the empty string for sessions that are not certified messaging sessions.
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getStatus()
Purpose
Returns
(Standard) Retrieves basic status information about the adapter.
This information is fairly limited; for more detail, additional methods are provided:
getConfig() on page 248
getRvConfig() on page 251
Returns
Instance ID
Adapter Name
Uptime
Messages Received
Messages Sent
New Errors
Total Errors
Process ID
Host
Type string string integer integer integer integer integer integer string
Description
Configuration ID for this adapter instance.
Name of the adapter.
Number of seconds since startup.
Number of TIBCO Rendezvous messages received.
Number of TIBCO Rendezvous messages published.
Number of errors since the last call to this method.
Total number of errors since startup.
Process ID of the application.
Name of host machine on which this adapter is running.
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getTraceSinks() | 253
getTraceSinks()
Purpose
Parameters
(Standard) Returns information about sinks to which traces currently go.
Parameters
Sink Name
Role Name
Type string string
Description
Name of the sink for which you need information. If no name is specified, information about all sinks is returned. Default is all.
Name of the role for which you need information for the specified sink or sinks. Default is all.
Returns
Returns
Instance ID
Adapter Name
Sink Name
Sink Type
Roles
Type string string string string string
Description
Name of this adapter instance as a string.
Name of the application for this sink.
Name of the sink
Type of this sink. One of fileSink
, rvSink
, hawkSink
, stderrSink
.
Roles this sink supports, as a string. For example
“warning, error, debug”
.
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getVersion()
Purpose
Returns
(Standard) Retrieves version information for the current application. Two lines may be returned, one for the TIBCO Adapter SDK, one for the adapter.
Returns
Instance ID
Adapter Name
Version
Description
The configuration ID as a string, for example
SDK
.
Name of the adapter as a string, for example rvpub
.
Version number as a string, for example
1.1
.
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_onUnsolictedMsg() | 255
_onUnsolictedMsg()
Purpose
(Standard) Displays all alert messages sent from the adapter or an error if not successful.
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preRegisterListener()
Purpose
Parameters
(Standard) Preregister an anticipated listener. Some sending applications can anticipate requests for certified delivery even before the listening applications start running. In such situations, the sender can preregister listeners, so TIBCO Rendezvous software begins storing outbound messages in the sender’s ledger. If the listening correspondent requires old messages, it receives the backlogged messages when it requests certified delivery.
Parameters
Session Name
Publisher Name
Listener Session
Name
Type string string string
Description
Name of the session that anticipates the listener.
Name of the component for which the listener should be preregistered.
Name of the listener to preregister.
Returns
OK if the listener was preregistered successfully, false otherwise.
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reviewLedger() | 257
reviewLedger()
Purpose
Parameters
(Standard) Returns information retrieved from the ledger file of a TIBCO Rendezvous certified messaging session. Before invoking this method, ensure that the certified messaging publisher adapter has established a certified delivery agreement with its subscriber agents.
Parameters
Session Name
Subject
Type string string
Description
Name of the TIBCO Rendezvous session for which ledger information is desired (default is all).
Name of the subject for which ledger information is desired.
Returns
Returns
Session Name
Subject
Last Sent Message
Total Messages
Total Size
Type string string integer string integer
Listener Session Name string
Last Confirmed string
Line
UnacknowledgedMess ages integer integer
Description
Name of the TIBCO Rendezvous CM session to which this information applies.
Subject name for this session.
Sequence number of the most recently sent message with this subject name.
Total number of pending messages with this subject name.
Total storage (in bytes) occupied by all pending messages with this subject name.
If the ledger contains ten messages with this subject name, then this field sums the storage space over all of them.
Within each listener submessage, the Listener Session Name field contains the name of the delivery-tracking listener session.
Within each listener submessage, the Last Confirmed field contains the sequence number of the last message for which this listener session confirmed delivery.
Row number in ledger file.
Number of RVCM messages pending for this listener. The value is computed by subtracting the last sent sequence number from the last acknowledged sequence number.
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setTraceSinks()
Purpose
Parameters
(Standard) Adds a role or changes the file limit of a previously specified sink.
Parameters
Sink Name
Role Name
File Size
Type string string integer
Description
Name of the sink for which you want to add a role or change the file limit.
Name of the role you want to add to this sink (warning, error, debug, or user defined). Default is all.
Maximum file size for this sink.
This parameter is ignored if the sink specified by sinkName is not a file sink.
Returns
OK
if successful or an error if not successful.
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stopApplicationInstance() | 259
stopApplicationInstance()
Purpose
Returns
(Standard) Stops the specified adapter by calling the internal stop()
method.
OK
if successful or an error if not successful.
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unRegisterListener()
Purpose
Parameters
(Standard) Unregisters a currently preregistered listener.
Parameters
Publisher Name
Listener Session
Name
Type string string
Description
Name of the component for which the listener should be preregistered.
Name of the listener to unregister.
Returns
True
if the listener was successfully unregistered,
False
otherwise.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
getEventQueueSize() | 261
getEventQueueSize()
Purpose
Parameters
(Custom) Retrieves the size of the TIBCO Rendezvous event queue for the specified adapter instance. For more information on events and event queues, see TIBCO
Rendezvous Concepts.
Parameter
Session
Type string
Description
Type of listener for this adapter instance. Possible values are
Subscriber
or
Request/Reply
. The default value is
Subscriber
.
Returns
Return
QueueCount
QueueLimit
Type integer integer
Description
The number of events currently in the event queue.
The maximum number of events this adapter instance can have in the event queue. This value is set using the adb.rvMaxQueueSize
option in the adapter’s properties file. The default value is
0
, which means the event queue has unlimited size.
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setDebugLevel()
Purpose
Parameters
(Custom) Sets the debug level for the current adapter instance.
Parameter
DebugLevel
Type integer
Description
Sets the debug level to
0
(off),
1
,
2
, or
3
.
0
— No debug information displayed.
1
—SQL commands executed with the database shown.
2
—ODBC data source for each SQL command shown.
3
—All debug information displayed.
Returns
Returns
OK
if successful or an error if not successful.
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toggleVerboseFlag() | 263
toggleVerboseFlag()
Purpose
Returns
(Custom) Changes the value of the verbose flag from on
to
off
, or the reverse.
This method returns
OK
if successful or an error if not successful.
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showConfiguration()
Purpose
Parameters
(Custom) Shows the configuration defined for the current agent.
Parameter
VerboseInfo
DebugLevelInfo
PollIntervalInfo
Type string string string
Description
The current setting for the verbose mode, on or off.
The debug level setting:
0
— No debug information displayed.
1
—SQL commands executed with the database shown.
2
—ODBC data source for each SQL command shown.
The poll interval in milliseconds.
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terminateADBagent() | 265
terminateADBagent()
Purpose
Remarks
Returns
(Custom) Stops the current TIBCO ActiveMatrix Adapter for Database agent.
Invoking this method displays a warning message with the text
MicroAgent returned error. AMI
Method invocation timed out
. The message can be ignored.
This method returns
OK
if successful or an error if not successful.
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getPollingInterval()
Purpose
Returns
(Custom) Returns the current polling interval setting.
Returns
PollingInterval
Type integer
Description
Polling interval in milliseconds.
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setPollingInterval() | 267
setPollingInterval()
Purpose
Parameters
(Custom) Set the polling interval for the publication service.
Parameter
PollingInterval
ServiceName
Type integer string
Description
Polling interval in milliseconds.
(Optional) Name of service where the polling interval is set.
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getPollingBatchSize()
Purpose
Returns
(Custom) Get the polling batch size for the publication service.
Returns
BatchSize
Type integer
Description
The batch size for the publication service.
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setPollingBatchSize() | 269
setPollingBatchSize()
Purpose
Parameters
(Custom) Set the polling batch size for the publication service.
Parameter
BatchSize
Type integer
Description
The new batch size for the publication service.
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getActivityStatistics()
Purpose
Parameters
(Custom with adb.perfMon
) Returns the total number of objects processed for all the schemas, based on the request type. Also, returns the number of success and error objects.
Parameter
Get Subtotal By
Type integer
Description
Statistics categorized by service or by operation.
Returns
Returns
Name
Total
Success
Failure
Type string integer integer integer
Description
Name of the service or operation. The operation can be one of the following:
Fetch
Poll
Insert
Update
Delete
Total number of objects processed for this schema for a publication service.
Total number of objects received for this schema for a subscription service.
The number of objects that were successfully identified for this schema which will be published or written to a file.
The number of objects that were identified for this schema but were not published because the header of the schema failed validation for the publication service, or was written to a file because the schema was not associated with the subscriber for a subscription service.
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getActivityStatisticsByService
Purpose
Parameters
(Custom with adb.perfMon) Returns the total number of objects processed for each of the schemas associated with the specified service. Also, returns the number of success and error objects.
Parameter
Service Name
Type string
Description
Name of the service.
Returns
Returns
Operation
Schema Name
Total
Success
Failure
Type string string integer integer integer
Description
Type of operation that the service performs.
Name of the schema that is associated with the service.
Number of objects processed for this schema for a publication service.
Number of objects received for this schema for a subscription service.
The number of objects that were successfully identified for this schema which will be published or written to a file.
The number of objects that were identified for this schema but were not published because the header of the schema failed validation for the publication service, or was written to a file because the schema was not associated with the subscriber for a subscription service.
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getActivityStatisticsByOperation()
Purpose
Parameters
(Custom with adb.perfMon) Returns the total number of objects processed for all the schemas by each service that is associated with a specified operation. Also, returns the number of success and error objects.
Parameter
Operation
Type string
Description
Name of operation. Pick from one of the following form the drop-down list.
Fetch
Poll
Insert
Update, and
Delete
Returns
Returns
Service Name
Total
Success
Failure
Type string integer integer integer
Description
Name of the service that is associated with the specified operation.
Total number of objects processed for this schema for a publication service.
Total number of objects received for this schema for a subscription service.
The number of objects that were successfully identified for this schema which will be published or written to a file.
The number of objects that were identified for this schema but were not published because the header of the schema failed validation for the publication service, or was written to a file because the schema was not associated with the subscriber for a subscription service.
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getThreadStatistics() | 273
getThreadStatistics()
Purpose
Returns
(Custom with adb.perfMon
) Return the operation counts of the current threads.
Returns
ThreadID
ThreadType
TaskType
TaskCount
Type string string string integer
Description
A unique identification of a particular thread.
A type or key that will match this thread to a queue or connection.
Short description of the tasks this thread processes.
Number of tasks processed by this thread.
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getQueueStatistics()
Purpose
Returns
(Custom with adb.perfMon
) Return the current count of elements in any internal queue used by the adapter. This includes the TIBCO Rendezvous event queues automatically spawned by TIBCO Rendezvous for each adapter.
Returns
QueueID
QueueType
QueueCount
MaxQueueSize
Type string string integer integer
Description
A unique identification of a particular queue.
A type or key that will match this queue to a thread or connection.
Current number of elements in the queue.
Maximum number of elements in the queue.
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getConnectionStatistics() | 275
getConnectionStatistics()
Purpose
Returns
(Custom with adb.perfMon
) Returns the state and statistics for all the current connections used by the adapter.
Returns
Connection ID
Connection Type
State
NumRetries
Type string string string integer
TotalNumOperations integer
CurrentNumOperatio ns integer
Description
A unique identification of a particular connection.
A type or key that will match this connection to a thread or queue.
Current state:
CONNECTED
or
DISCONNECTED
Total number of times this connection had to be reestablished.
Total number of operations processed by this connection since the adapter started.
Total number of operations processed by this connection since the last reconnection.
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resetActivityStatistics()
Purpose
(Custom with adb.perfMon
) Resets all the counts for the activity statistics.
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resetThreadStatistics() | 277
resetThreadStatistics()
Purpose
(Custom with adb.perfMon
) Resets all the counts for the thread statistics.
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resetQueueStatistics()
Purpose
(Custom with adb.perfMon
) Resets all the counts for the queue statistics.
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resetConnectionStatistics() | 279
resetConnectionStatistics()
Purpose
(Custom with adb.perfMon
) Resets all the counts for the connection statistics.
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TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Appendix A
Frequently Asked Questions
This appendix lists answers to frequently asked questions.
Topics
•
General Questions, page 288
•
Request-response Questions, page 293
| 287
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288 | Appendix A Frequently Asked Questions
General Questions
How can I determine the source of a problem or an error?
In some cases it is helpful to turn on ODBC tracing. Navigate to Control Panel >
Administrative Tools > ODBC Data Sources. Activate tracing by clicking the Start
Tracing Now button on the Tracing tab. For details, see your Microsoft Windows documentation.
How can I find the version number of an adapter instance?
A banner displays when an adapter instance starts. The banner lists component versions for the adapter and for TIBCO Adapter SDK software. You can use this information to diagnose compatibility issues, or to report any problem details to Customer Support.
You can also display version information in TIBCO Designer by selecting Help >
Runtime Environment.
Why is a database trigger error not logged in the exception table?
When using an adapter instance as a publisher, if an error occurs in the database trigger that is used to copy data from the source table to the publishing table, the database trigger error will not be logged in the exception table for the subscriber adapter.
How should the adapter react if the database connection is lost and the database is later restarted? Does it automatically try to reconnect?
If TIBCO ActiveMatrix Adapter for Database detects it has lost its database connection, it
shuts down. You can configure the adapter for automatic reconnection (see
Runtime
Connection Tab on page 45
). Alternatively, TIBCO Hawk rules can be written to detect
this and restart the adapter whenever this occurs.
Must an incoming message contain all the columns that are defined for the destination table?
The incoming message need not contain all the columns defined in the destination database table. You can configure the adapter to expect only a subset of the columns, defined in the repository. The adapter is driven from the subscribing class description and will iterate through the attributes in the class definition for the subscribing table and specifically look for those attributes in the incoming messages. It inserts NULLs for the attributes that it is expecting but does not find in the message. If there are more columns in the subscribing table than are listed in the subscribing class (set when adding a subscription), those extra columns will get whatever default values were specified during the table creation.
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General Questions | 289
Can an existing table be used as the publishing table?
No. TIBCO ActiveMatrix Adapter for Database requires additional columns in the publishing table. Even when every field in a table is published, a separate publishing table is required.
Does the TIBCO Rendezvous message that is published have to contain every field in the publishing table?
Yes. You can control which fields are copied to the publishing table by configuring the adapter and by changing the publication trigger to publish a subset of rows. You can also append additional fields to a message or drop a message based on some criteria using the user callout library. For more information on the user callout library, see
User Callout
Library on page 183
If multiple updates occur between polling intervals, are updates published in multiple TIBCO
Rendezvous messages or a single large message?
If you are using publish by value
, a TIBCO Rendezvous message is created for each individual update. If you are using publish by reference
, that operation will get the last update.
Is it possible to delete older entries in the publishing table?
Yes. When a row is published, the value of the ADB_L_DELIVERY_STATUS field in the publishing table changes to either
C
(complete) or
F
(failed). You can write a trigger in your publishing table that deletes the row when the delivery status changes to
C
or
F
.
You can also publish data directly from the source table by configuring the adapter instance to publish by reference. A publishing table is created, but it contains only required fields and key fields of the source table.
How does the exception table work?
Before starting an adapter instance, you must set the adb.useExceptTable
option in the adapter’s properties file to on
and specify an exception table when configuring the adapter instance. If an error occurs when inserting data into the destination table, it will be inserted into the exception table. The transaction will be committed and a confirmation sent back for the message (RVCM delivery). If the insertion into the exception table also fails, an error message will display and the adapter instance will terminate.
Can an adapter instance be used to replicate binary types, such as BLOB?
There is only limited support for binary large object (BLOB) data types. Oracle LONG and LONG RAW types are supported in top-level tables when the adapter is configured to publish by reference. Oracle BLOB and CLOB data types are supported.
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Can an adapter instance write to tables that belong to a database account different from that used by the adapter?
Yes. A source table or destination table can belong to a different database user than the default account created in create_user.sql
. For more information on referencing external schemas, see TIBCO ActiveMatrix Adapter for Database Concepts.
Can a publisher adapter and a subscriber adapter use different projects?
Yes, unless the publisher adapter is configured to use parent-child relationships.
Can TIBCO ActiveMatrix Adapter for Database guarantee exactly once delivery of messages over RVCM?
Exactly once delivery of messages over RVCM is not currently guaranteed. The same quality of service that RVCM provides is supported, which is at least once. To get exactly once delivery requires combining the messaging operations and the database operations in a single atomic transaction, which is not supported in RVCM.
What guarantees does the adbagent make with regards to the order of database operations?
For instance, is it guaranteed that for a given table, modifications are made in the same order that they were made to the source database? What guarantees are made for operations across different tables?
TIBCO ActiveMatrix Adapter for Database guarantees that for database operations that are published on the same subject, the order of the operations is preserved. Usually, this applies to database operations made to one table. It does not usually apply to database operations across different tables.
When using RVCM for delivery, at what point does the subscribing adapter acknowledge an incoming message?
A TIBCO ActiveMatrix Adapter for Database subscriber confirms the message only after the database operation is committed. If there is an error and no exception table is used, the database operation is rolled back and no confirmation is sent. If there is an error and an exception table is used, the insert to the exception table is committed and the message is then confirmed.
By maintaining the publishing tables, all changes to the source table can be captured. If, however, there is a failure between the point of publishing a message using RVCM and updating the publishing table, will the adapter republish the message that has already been sent?
Yes, the message will be republished and the subscriber would have to deal with the duplicate message.
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General Questions | 291
For the subscriber adapter, if failure occurs after doing a database update and before sending an acknowledgement back to the publisher adapter, can the restarted configuration be prevented from redoing the update operation?
No. This would cause a duplicate insert.
For a certified subscriber adapter, if an insert exception occurs and no exception table is specified, what happens?
If the tibco.clientVar.DirTrace
option is specified in the adapter’s properties file when the adapter is started, exception handling information is written to the log file and the configuration continues to run. Since the insert could not be performed, the
ADB_L_DELIVERY_STATUS
publishing table column has a value of
P
for the message.
How do I pre-register non-TIBCO ActiveMatrix Adapter for Database subscribers, like custom adapters, to ensure no messages are lost?
Specify the
CM name
of the listener’s RVCM session
The session names are automatically created. Can these be changed, without confusing TIBCO
ActiveMatrix Adapter for Database, so that we can use a standard naming convention throughout the entire integration process?
No, the session names are fixed and used by TIBCO ActiveMatrix Adapter for Database internally. They cannot be altered.
What’s the proper way to permanently remove an adbagent subscriber when using CM? One way is to completely REMOVE the publisher’s ledger and to change all ’P’ records back to ’N’, then restart the publisher. Is there a better, more correct or automated method?
There is a TIBCO Hawk method, unRegisterListener()
, which unregisters a CM subscription.
This is the proper way to remove the adbagent subscriber as a CM listener.
Is it possible to run an adapter instance using a remote TIBCO Rendezvous daemon?
Yes. Change the default settings for network, service, and daemon parameters for the adapter using TIBCO Designer.
Is it possible to run two configurations of the adapter on the same machine?
It's possible to run multiple configurations of the adapter on the same machine if each adapter instance has a unique name. If both configurations use TIBCO Rendezvous certified messaging, each must use a different RVCM session.
Can an adapter instance collate information from several database tables to send as a single
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292 | Appendix A Frequently Asked Questions
TIBCO Rendezvous message, or can it only publish data from a single table, in the format defined by that table?
There are two ways to publish related tables:
• Set the adb.publishChildData
option to on when configuring the adapter’s properties file.
When there are insertions into parent table, the adapter will publish parent rows and the corresponding child rows using TIBCO ActiveEnterprise or XML format.
Note that the adapter currently does not support publishing child data in the TIBCO
Rendezvous Message format. Update and delete on parent-child relationship when publishing is also not supported. See
Publisher Options Tab on page 76
.
• Combine several tables into one table using a trigger and then publish from the combined table.
When publishing or subscribing, an adapter instance allows you to change the message using the callout library. See
User Callout Library on page 183
Why does TIBCO Designer display a Java exception error while I’m trying to use TIBCO
Designer through Exceed?
When using Exceed to simulate an X Windows environment, start the X Windows server in the Exceed Session Startup Application. In this application, make sure the
Run X server checkbox is selected, then try TIBCO Designer again.
When my Sybase transaction log becomes full, the adapter hangs. How can I fix this problem?
When a Sybase transaction log becomes full, if the database setting abort trans on log full
is set to false, your application will hang instead of printing a transaction log full error. Execute the following command: sp_dboption dbname
, "abort tran on log full", true
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Request-response Questions | 293
Request-response Questions
When using request-response, can an INSERT statement with values only (without field names) be sent to the improve application's performance.?
Yes this is allowed. Your application can also send INSERT statements without the binds.
Can an application send UPDATE statements to a subscriber adapter with only those fields which are being updated? That is, if a table has ten records and only two should be updated, can an UPDATE statement be constructed and sent only for those fields?
Yes, this is supported.
Does an adapter instance send responses back as one large message with all rows in it or is the message sent in chunks?
The adapter sends results back to an application as one large message.
If a failure occurs when doing an insert or update, what is returned to the application?
If an error occurs while the adapter is processing a request, an error code and description is returned to the application. In the case of success, a result set and row count is returned to the application.
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TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Appendix B
Trace Messages
This appendix explains the trace messages in TIBCO ActiveMatrix Adapter for Database.
These include status messages, informational messages, error messages, and other types of messages.
| 295
Topics
•
Overview, page 296
•
Status Messages, page 299
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296 | Appendix B Trace Messages
Overview
Trace messages provide information about adapter activities. The messages are logged to the console where the runtime adapter was started and to a log file in a location specified during configuration. Trace messages can also be redirected to the TIBCO Hawk Display application, or sent to other applications using the TIBCO Rendezvous transport.
Each trace message can include the following fields in the order shown:
Timestamp Adapter_Identifier Role Category Status_Code Tracking_Identifier
Application_Information
The above fields are explained in
Trace Message Fields on page 297
. The following example shows a trace message containing some of these fields and then identifies the fields.
2003 Feb 22 20:15:12:937 GMT -8 FileAdapter.FileAdapterConfiguration Info [Adapter]
AEFA-000067 Message containing class /tibco/public/class/ae/Customer received on subject
FROM.SAP tracking=#MU3oTJ/WWCV1MU96J0zzwA9kzzw#
Timestamp:
Adapter ID:
Role:
Category:
Status Code:
2003 Feb 22 20:15:12:937 GMT -8
FileAdapter.FileAdapterConfiguration
Info
[Adapter]
AEFA-000067 Message containing class
/tibco/public/class/ae/Customer received on subject FROM.SAP tracking=#MU3oTJ/WWCV1MU96J0zzwA9kzzw#
Tracking ID:
Example 1:
Adapter Started
Example Trace Messages
The following trace messages were written during a session where TIBCO Adapter for
Files received an object from TIBCO Adapter for R/3, then processed the object.
The following message indicates that TIBCO Adapter for Files has started. The timestamp indicates when the adapter started, and the role indicates that the trace message is informational, which means the activity is normal for the adapter. The category is identified, and the corresponding status code is displayed. The status code indicates that the adapter started successfully.
2003 Feb 22 20:14:51:718 GMT -8 FileAdapter.FileAdapterConfiguration Info [Configuration] AEFA-000058 TIBCO
Adapter for Files successfully initialized
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Overview | 297
Example 2:
Message
Received
Example 3:
Object Moved
The next set of trace messages indicates the adapter received an object that was sent on the
TIBCO Rendezvous subject,
FROM.SAP
. The
#MU3oTJ/WWCV1MU96J0zzwA9kzzw#
tracking identifier included in the trace message uniquely identifies the message. The adapter
(TIBCO Adapter for R/3) from which the message originated provided the identifier.
2003 Feb 22 20:15:12:937 GMT -8 FileAdapter.FileAdapterConfiguration Info [Adapter] AEFA-000067 Message containing class /tibco/public/class/ae/Customer received on subject FROM.SAP tracking=#MU3oTJ/WWCV1MU96J0zzwA9kzzw#
2003 Feb 22 20:15:12:937 GMT -8 FileAdapter.FileAdapterConfiguration Info [Adapter] AEFA-000068 Message containing class /tibco/public/class/ae/Customer written to working file customers.txt in Working Directory
F:\ca\integration\001\data_sets\files\wip tracking=#MU3oTJ/WWCV1MU96J0zzwA9kzzw#
The final trace message indicates the object has been moved to the output directory, which completes the adapter’s interaction with the object. Because the trace message is the termination point, the tracking identifier is not displayed.
2003 Feb 22 20:15:42:812 GMT -8 FileAdapter.FileAdapterConfiguration Info [Adapter] AEFA-000070 File customers.txt is moved to the Output Directory F:\ca\integration\001\data_sets\files\solutions\output
Trace Message Fields
Each trace message includes the following fields:
Table 47 Trace Message Fields (Sheet 1 of 2)
Field Name
Timestamp
Description
Timestamp of occurrence. For example,
2003 Feb 22 20:14:51:718 GMT -8
.
Adapter Identifier Name of the adapter that wrote the trace message. This is a combination of the adapter acronym and adapter configuration name. For example, the application identifier,
ADB.publisher1
identifies a TIBCO ActiveMatrix Adapter for Database service named publisher1.
Role A role can be:
Info. Indicates normal adapter operation. No action is necessary. A tracing message tagged with
Info indicates that a significant processing step was reached and has been logged for tracking or auditing purposes. Only info messages preceding a tracking identifier are considered significant steps.
Warn. An abnormal condition was found. Processing will continue, but special attention from an administrator is recommended.
Error. An unrecoverable error occurred. Depending on the error severity, the adapter may continue with the next operation or may stop altogether.
Debug. A developer-defined tracing message. In normal operating conditions, debug messages should not display.
When configuring the adapter you define what roles should or should not be logged. For example, you may decide not to log Info roles to increase performance.
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298 | Appendix B Trace Messages
Table 47 Trace Message Fields (Sheet 2 of 2)
Field Name
Category
Description
One of the following:
• Adapter. The adapter is processing an event.
• Application. The adapter is interacting with the database.
• Configuration. The adapter is reading configuration information.
• Database. The adapter is interacting with a database.
• Metadata. The adapter is retrieving metadata from the database.
• Palette. The adapter is interacting with the palette.
• Publisher Service. The publication service is reporting this trace message.
• Request-Response Client Service. The request-response invocation service is reporting this trace message.
• Request-Response Server. The request-response service is reporting this trace message.
• Shutdown. The adapter is shutting down.
• Startup. The adapter is starting.
• Subscription Service. The subscription service is reporting this trace message.
• System. This category is not linked to a specific event process. The trace message may be related to a Windows service related messages, memory allocation, file system error, and so on.
• TibRvComm. The adapter is communicating with TIBCO Rendezvous.
• XML. The adapter is parsing XML documents.
Status Code Unique code for the message and description. Status codes are identified by a unique number and description. If a trace message includes an error or warn role, the status code documentation includes a resolution. See
Status Messages on page 299 for details.
Tracking Identifier
Application
Information
A unique identifier that is "stamped" on each message by the originating adapter. The tracking identifier remains in effect from a message’s beginning to its completion as it is exchanged by
TIBCO applications. If the adapter is the termination point of the message, the tracking identifier is not displayed in the trace message.
You cannot modify the tracking identifier format or configure what information is displayed.
Application-specific information added to the tracking info to trace the message back to its source. Set initially by the originating adapter and carried forward. It is augmented by each intermediate component.
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Status Messages | 299
Status Messages
Status Code
AEADB-100001
AEADB-100002
AEADB-100003
AEADB-100004
AEADB-100005
AEADB-100006
AEADB-100007
Role Category Resolution
%1Database connection succeeded.
infoRole Database
%1Database connection failed.
Normal operation; no action is necessary.
errorRole Database Check and test the ODBC configuration and restart the TIBCO Runtime Agent.
odbc connection as: DSN: %1, User: %2 infoRole Database Normal operation; no action is necessary.
Database driver code: %1Database vendor message: %2 errorRole Database See an ODBC manual and the manual of the native database by using the error code.
Unknown database system.
warnRole Database The adapter is unable to detect the DBMS type of the database it connects to. Make sure a supported
DBMS is used. This condition sometimes occurs because a native character set is used. If you are using a supported DBMS, ignore this warning.
%1SQL statement preparation succeeded.
infoRole Database Normal operation; no action is necessary.
%1SQL statement preparation failed.
errorRole Database Preparation of a SQL statement failed. Check the configuration for this adapter service and restart the adapter.
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Status Code
AEADB-100008
AEADB-100009
AEADB-100010
AEADB-100011
AEADB-100012
AEADB-100013
AEADB-100014
AEADB-100015
AEADB-100016
AEADB-100017
Role Category Resolution (Cont’d)
Problem reading values for %1 from Database errorRole Database The adapter cannot retrieve data from tables. In the adapter properties file, set the adb.verbose option
to on
and the adb.debug
option to
3
to print the SQL statement to the log file then report this error to TIBCO support.
Database Connection Lost, Terminating....
errorRole Database Check the connection to the underlying database and restart the adapter.
JDBC connection as: Driver %1, URL %2, User %3 infoRole Database
%1Database connection closed
Normal operation; no action is necessary.
infoRole Database
%1Invalid statement
Normal operation; no action is necessary.
errorRole Database The adapter detected an invalid SQL statement. For request-response service, an invalid request is processed; otherwise, check your adapter service configuration and restart the adapter instance.
Attribute %1 (class %2): No column data ignoring
Normal operation; no action is necessary.
infoRole Database
Inserted %1into database infoRole Adapter
Deleted from database
Normal operation; no action is necessary.
infoRole Adapter
No rows deleted infoRole Adapter
Updated database infoRole Adapter
Normal operation; no action is necessary.
Normal operation; no action is necessary.
Normal operation; no action is necessary.
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Status Messages | 301
Status Code
AEADB-100018
AEADB-100019
AEADB-100020
AEADB-200001
AEADB-200002
AEADB-200003
AEADB-200004
Role Category
No rows updated
Resolution (Cont’d) infoRole Adapter Normal operation; no action is necessary.
No columns specified for WHERE clause in %1 errorRole Adapter The adapter could not find key fields to construct the
WHERE clause. Check the repository definition of this class and make sure there is at least one field with isKey=true.
Building %1 criteria infoRole Adapter Normal operation; no action is necessary.
Foreign key attribute %1 not found in the publishing class.
errorRole Configuration Check your parent-child relationship in publisher configuration and make sure that the child table is joined with the parent table by a common key column, then restart the adapter.
%1Class registry not found: %2.
errorRole Configuration Check the configuration of that service to make sure that the class registry exists.
%1Class description not found: %2.
errorRole Configuration Check the configuration of that service to make sure that the class description exists. Sometimes, if the loadUrl
is not set correctly, this problem occurs.
Problem encountered when reading from ADB_PREREGLISTENER errorRole Configuration The adapter has problems reading from the
ADB_PREREGLISTENER table. Check to see that access to that table is allowed and the table is not corrupted.
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302 | Appendix B Trace Messages
Status Code
AEADB-200005
AEADB-200006
AEADB-200007
AEADB-200008
AEADB-200009
AEADB-200010
AEADB-200011
AEADB-200012
AEADB-200013
Role Category Resolution (Cont’d)
Could not register Hawk method %1 warnRole Configuration A description of a TIBCO Hawk method was not found in the repository. This can happen if the adapter instance is not the latest. Configure the adapter with the latest TIBCO Designer version.
Setting %1 = %2.
infoRole Configuration
%1 cannot be used with %2 warnRole Configuration
Normal operation; no action is necessary.
Incomplete options or conflicting options are used.
Check the log file for the detailed information and restart the adapter with correct options.
Preregistering %1 on %2 infoRole Configuration
%1 creation failed errorRole Configuration
Normal operation; no action is necessary.
There was an error initializing the publication. Check your project and re-configure the publication.
%1 cannot be larger than %2 errorRole Configuration Conflicting options are used. Check the log file and restart the adapter with the correct options.
Unsupported encoding type: %1, Use default ASCII Encoding.
errorRole Configuration An unknown character set is detected. Check the language configuration in the OS environment and restart the adapter.
AEADB-POLLINGINTERVAL-NOVALUE-ERR errorRole Configuration Unable to retrieve polling interval value from Hawk method. Retaining original value of %1 milliseconds.
Please make sure a value is specified before invoking the setPollingInterval
method.
AEADB-POLLINGINTERVAL-NEGATIVE-ERR
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Status Messages | 303
Status Code
AEADB-200014
AEADB-200015
AEADB-200016
AEADB-200017
AEADB-200018
AEADB-200019
AEADB-200020
AEADB-300001
Role errorRole
Category
Configuration
Resolution (Cont’d)
Negative value of %1 for polling interval not allowed. Retaining original value of %2 milliseconds. Please make sure to specify a non-negative value for the polling interval.
AEADB-POLLINGINTERVAL-SAME-WARN warnRole Configuration Polling interval already set to %1 milliseconds.
AEADB-POLLINGINTERVAL-CHANGED infoRole Configuration Polling interval changed to %1 milliseconds.
AEADB-POLLINGBATCHSIZE-NOVALUE-ERR errorRole Configuration Unable to retrieve polling batch size value from
Hawk method. Retaining original value of %1.
Please make sure a value is specified before invoking the setPollingBatchSize
method.
AEADB-POLLINGBATCHSIZE-NEGATIVE-ERR errorRole Configuration Negative value of %1 for polling batch size not allowed. Retaining original value of %2. Please make sure to specify a non-negative value for the polling batch size.
AEADB-POLLINGBATCHSIZE-SAME-WARN warnRole Configuration Polling batch size already set to %1.
AEADB-POLLINGBATCHSIZE-CHANGED infoRole Configuration Polling batch size changed to %1.
AEADB-POLLINGBATCHSIZE-CHANGED warnRole Configuration The repository encoding should be set to UTF-8 if your agent encoding is not ASCII or LATIN-1. Set the repository encoding to UTF-8.
%1exception thrown in %2.
errorRole System An adapter internal error. Contact TIBCO Support.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
304 | Appendix B Trace Messages
Status Code
AEADB-300002
AEADB-300003
AEADB-300004
AEADB-300005
AEADB-300006
AEADB-300007
AEADB-300008
Role Category
Not enough memory available.
Resolution (Cont’d) errorRole System Check the virtual memory of the system and restart the adapter. If it keeps happening, contact TIBCO
Support.
MException throw in %1: %2.
errorRole System An Adapter SDK exception was thrown. Report the
SDK error code and text to TIBCO Support.
%1 on connect socket in thread failed errorRole System A TCP system call failed. Check your computer’s network ports and TCP libraries. Rebooting the computer may solve the problem.
Binding address to socket failed. Listenport = %1 errorRole System A TCP system call failed. Check your computer’s network ports and TCP libraries. Rebooting the computer may solve the problem.
Listen call on socket failed errorRole System A TCP system call failed. Check your computer’s network ports and TCP libraries. Rebooting the machine may solve the problem.
Accept on socket failed errorRole System A TCP system call failed. Check your computer’s network ports and TCP libraries. Rebooting the computer may solve the problem.
Socket creation in thread failed errorRole System A TCP system call failed. Check your computer’s network ports and TCP libraries. Rebooting the computer may solve the problem.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Status Messages | 305
Status Code
AEADB-300009
AEADB-400001
AEADB-400002
AEADB-400003
AEADB-400004
AEADB-400005
AEADB-400006
AEADB-600001
Role Category Resolution (Cont’d)
Out of memory building the WHERE clause errorRole Adapter An adapter process has run out of memory. Increase the amount of memory allowed to the adapter on your system.
%1Unknown column name %2 errorRole Metadata Request is missing a column field in the Bind data.
Add a column, tableName.columnName
field, to your bind data.
%1Unknown column type: %2 for field: %3.
errorRole Metadata
Unknown column type, %1, %2
The type %2 is an invalid AE class type. Check in the repository for attribute %3 and change the class type to a valid AE class type.
Normal operation; no action is necessary.
infoRole Metadata
%1schema %2, tables: %3 debugRole Metadata
%1table %2, columns: %3 debugRole Metadata
Ill-formatted table name %1 errorRole Metadata A table name of this format is not supported by the adapter. Use a different table name.
%1Failed to set limit policy for event queue %2 on session %3: %4 errorRole TibRvComm TIBCO Rendezvous failed to set the limit policy according to the -rv-max-queue-size specification.
Please report this error text to TIBCO customer support.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
306 | Appendix B Trace Messages
Status Code
AEADB-600002
AEADB-600003
AEADB-600004
AEADB-600005
Role Category Resolution (Cont’d)
%1Failed to get queue count for event queue %2 on session %3: %4 errorRole TibRvComm TIBCO Rendezvous failed to get the queue count for the given session. Please report this error text to
TIBCO customer support.
%1Failed to get queue limit for event queue %2 on session %3: %4 errorRole TibRvComm TIBCO Rendezvous failed to get the limit policy for the given session. Report the this error text to TIBCO
Support.
OnEvent: eventname %1 infoRole TibRvComm Normal operation; no action is necessary.
MException thrown trying to publish message on "%1".
AEADB-600006
AEADB-700001
AEADB-700002
AEADB-700003 errorRole TibRvComm
%1Received ADVISORY %2 errorRole TibRvComm An unexpected TIBCO Rendezvous advisory was received. See your TIBCO Rendezvous documentation for resolution information.
SQL: %1
Unable to publish the message, check error description for details. Check your daemon connection.
infoRole Adapter Normal operation; no action is necessary.
%1Building SQL statement succeeded%2.
infoRole Adapter Normal operation; no action is necessary.
%1Binding data to placeholders: unknown column type, %1 for field %2.
Ignoring errorRole Adapter The type %1 is an invalid AE class type. Check in the repository for attribute %2 and change the class type to a valid AE class type.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Status Messages | 307
Status Code
AEADB-700004
AEADB-700005
AEADB-700006
AEADB-700007
AEADB-700008
AEADB-700009
AEADB-700010
AEADB-700011
AEADB-700012
Role Category Resolution (Cont’d)
%1database operation%2 succeeded infoRole Adapter
%1database operation%2 failed
Normal operation; no action is necessary.
errorRole Adapter The execution of this database statement failed. Use the error returned by the database to determine how to allow this SQL statement to succeed.
%1database transaction begin infoRole Adapter
%1database transaction commit
Normal operation; no action is necessary.
infoRole Adapter Normal operation; no action is necessary.
%1database transaction rollback.
infoRole Adapter Normal operation; no action is necessary.
%1Cannot bulk insert for variable binary type in column %2.%3.
warnRole Adapter The subscriber bulk insert option does not support a variable binary data type. Do not use bulk insert for tables with a variable binary data type.
%1Database transaction commit failed.
warnRole Adapter
Encoding error from %1 to %2.
The database was unable to commit the transaction.
Use the error returned by the database to determine how to allow this transaction to succeed.
errorRole Adapter An Adapter SDK error converting data to the specified encoding. Make sure the encoding is a supported one.
%1Cold start completed.
infoRole Adapter Normal operation; no action is necessary.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
308 | Appendix B Trace Messages
Status Code
AEADB-700013
AEADB-700014
AEADB-700015
AEADB-700016
AEADB-700017
AEADB-700018
AEADB-700019
AEADB-700020
AEADB-700021
AEADB-700022
AEADB-700023
Role Category
%1Cold start failed.
errorRole Adapter
%1Confirming message.
infoRole Adapter
%1 batch commit timeout.
infoRole Adapter
%1Bulk insert begins.
Resolution (Cont’d)
Run the adapter using debug 3 and verbose mode.
Normal operation; no action is necessary.
Normal operation; no action is necessary.
infoRole Adapter
%1Bulk insert ends.
Normal operation; no action is necessary.
infoRole Adapter Normal operation; no action is necessary.
Inserted %1into the corresponding exception table.
infoRole Adapter Normal operation; no action is necessary.
%1Exception table is not specified.
warnRole Adapter Reconfigure the subscriber by specifying an exception table, or turn off the adb.useExceptTable
option
(in the adapter properties file) when starting the adapter.
%1Cannot find bound data for %2.
Normal operation; no action is necessary.
infoRole
%1 = %2
Adapter debugRole Adapter
%1 = NULL debugRole Adapter
%1Bulk insert turning off.
infoRole Adapter Normal operation; no action is necessary.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Status Messages | 309
Status Code
AEADB-700024
AEADB-700025
AEADB-700026
AEADB-700027
AEADB-700029
AEADB-700030
AEADB-700031
AEADB-700032
AEADB-700033
AEADB-700034
AEADB-700035
Role Category
Polling publishing table %1 infoRole
%1 = %2
Resolution (Cont’d) infoRole Adapter Normal operation; no action is necessary.
Updating delivery status of publishing table %1.
Adapter Normal operation; no action is necessary.
debugRole Adapter
%1Publishing by reference and selecting from reference object %2 infoRole
%1
Adapter Normal operation; no action is necessary.
Normal operation; no action is necessary.
infoRole Adapter
Received request %1.
infoRole Adapter
Built reply %1.
Normal operation; no action is necessary.
infoRole
%1sent to %2
Adapter infoRole
%1
Adapter
Normal operation; no action is necessary.
Normal operation; no action is necessary.
infoRole Adapter
Bad date encountered: %1
Normal operation; no action is necessary.
errorRole Adapter Check your dateTime
-related message data and make sure it is in the correct format.
Parameterized subject %1 exceeds TibRv maximum subject length of %2 errorRole Adapter Shorten a parameterized subject string length.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
310 | Appendix B Trace Messages
Status Code
AEADB-700036
AEADB-700037
AEADB-700038
AEADB-700039
AEADB-700041
AEADB-700042
AEADB-700044
AEADB-700045
AEADB-700046
Role Category
Unrecognized event errorRole Adapter
Resolution (Cont’d)
An unrecognized event received. Disable it if possible.
%1 errorRole Adapter An unexpected error happened internally. Contact
TIBCO Support.
Poll for change failed errorRole Adapter Run the adapter using debug 3 and verbose mode.
Check printed database error code.
Update sequence Failed errorRole Adapter Run the adapter using debug 3 and verbose mode.
Check the update statement database error code.
%1, data = %2 infoRole Adapter Normal operation; no action is necessary.
Maximum of %1 thread allowed for %2 assuming %3 warnRole Adapter Maximum threads have been exceeded; however, the adapter runs by assuming the default thread count.
Currently a publisher manager, subscriber manager and request-response communication can only have one thread each.
Main thread (name: %1, id: %2)
Normal operation; no action is necessary.
infoRole Adapter
%1endpoints %2 infoRole Adapter
Confirming request infoRole Adapter
Normal operation; no action is necessary.
Normal operation; no action is necessary.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Status Messages | 311
Status Code
AEADB-700048
AEADB-700049
AEADB-700050
AEADB-700051
AEADB-700052
AEADB-700053
AEADB-700054
AEADB-700055
Role Category Resolution (Cont’d)
%1Error creating reply message errorRole Adapter Cannot create an Adapter SDK MTree object for a reply message. Contact TIBCO Support.
%1Request is being handled by thread %2 infoRole Adapter
%1Could not start transaction
Normal operation; no action is necessary.
errorRole Adapter Cannot set autoCommit to false. Check the status of the database you are trying to connect to and try again. If it still fails, contact TIBCO Support.
Request Reply: Error retrieving %1 errorRole Adapter Missing required "sql" field when sending a request
(rvMsg) to a request-response service for execution.
Reconstruct the request message to include a "sql" field.
%1Error binding variables errorRole Adapter Check the request message format. For a given field, make sure the data type in the message is the same as defined in the database.
%1Reply sent to %2 infoRole Adapter Normal operation; no action is necessary.
%1Error sending reply to %2 - %3 errorRole Adapter TIBCO Rendezvous failed to send a reply message to the request client. Report this error text to TIBCO
Support.
%1Failed to create sender for reply errorRole Adapter TIBCO Rendezvous failed to create a reply sender.
Please report this error text to TIBCO customer support.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
312 | Appendix B Trace Messages
Status Code
AEADB-700056
AEADB-700057
AEADB-700058
AEADB-700059
AEADB-700063
AEADB-700064
AEADB-700065
AEADB-700066
AEADB-700071
Role Category Resolution (Cont’d)
RequestReply: No reply name. Not sending reply errorRole Adapter Specify a reply-subject when defining an adapter request-response service.
%1Error retrieving bind position errorRole Adapter Check the request message format. For a given field in the message, make sure it is present in the database.
Stopped thread (%1) infoRole Adapter Normal operation; no action is necessary.
Starting thread (name: %1, id: %2) infoRole
%1starts
Adapter Normal operation; no action is necessary.
Normal operation; no action is necessary.
infoRole Adapter
%1Request: %2 debugRole Adapter
%1Reply: %2 debugRole Adapter
Load catalog table %1 infoRole Adapter
Duplicate agent found %1 errorRole Adapter
Normal operation; no action is necessary.
The adapter is terminated because a same-named configuration is started on the same TIBCO
Rendezvous network. For more information, see to
Notes on Configuring an Adapter on page 30
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Status Messages | 313
Status Code
AEADB-700072
AEADB-700073
AEADB-700074
AEADB-700075
AEADB-700076
AEADB-700077
AEADB-700078
AEADB-700079
Role Category Resolution (Cont’d)
%1MExceptionEvent - Not an RVMSG_RVMSG: %2 errorRole Adapter
%1Unknown message format errorRole Adapter The adapter received a TIBCO Rendezvous message of unknown format. Check other running components’ configurations to determine the source of this message.
%1Not processing message
The adapter received an
MExceptionEvent
where an
MDataEvent
is expected. Check other running components’ configurations to determine the source of this message.
errorRole Adapter The message is not being processed because an error has occurred. Check for related error messages to determine what the problem is.
%1Error converting event into an Mtree errorRole Adapter A conversion error occurred in the Adapter SDK layer. The message may be corrupted or of a wrong format. Check the Adapter SDK error message if any to determine what the problem is.
%1CM sender: %2, CM sequence number: %3 debugRole Adapter
Received message altered: infoRole Adapter Normal operation; no action is necessary.
Received message discarded by alterMsgSub() infoRole Adapter Normal operation; no action is necessary.
%1Unable to create AE object from the message: %2 warnRole Adapter An unpacking error occurred in the Adapter SDK layer. The message may be corrupted or of a wrong format. Check the Adapter SDK error message if any to determine what the problem is.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
314 | Appendix B Trace Messages
Status Code
AEADB-700080
AEADB-700081
AEADB-700082
AEADB-700083
AEADB-700084
AEADB-700085
AEADB-700086
AEADB-700087
AEADB-700088
AEADB-700089
Role Category Resolution (Cont’d)
Received its own message. Discarding.
infoRole Adapter
Batch confirming %1 messages
Normal operation; no action is necessary.
infoRole Adapter Normal operation; no action is necessary.
RequestReply: Bind argument %1 must include a table name errorRole Adapter The format of the Bind argument name should be tablename.columnname
. This message will not be processed.
Published message on %1 infoRole Adapter Normal operation; no action is necessary.
ADB_SEQUENCE class %1 not supported errorRole Adapter The class type of ADB_SEQUENCE can only be either string or i4. Make sure the class type of the
ADB_SEQUENCE column of the publishing table is specified correctly in the repository.
Received ADVISORY %1 infoRole Adapter Normal operation; no action is necessary.
Publisher batch confirm timeout infoRole Adapter
%1 method invoked
Normal operation; no action is necessary.
infoRole Adapter
Unknown driver %1
Normal operation; no action is necessary.
errorRole Adapter The adapter currently only supports ODBC drivers
(including the IBM client access driver).
%1Request received from %2 infoRole Adapter Normal operation; no action is necessary.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Status Messages | 315
Status Code
AEADB-700090
AEADB-700091
AEADB-700092
AEADB-700093
AEADB-700094
AEADB-700095
AEADB-700096
AEADB-700097
AEADB-700098
Role Category
Database error updating %1
Resolution (Cont’d) errorRole Adapter An error occurred while updating the publishing table. This is a fatal error and the adapter will terminate. Use the error returned by the database to determine how to solve the problem.
Publishing ADBOPAQUE format not supported errorRole Adapter The adapter currently does not support publishing in opaque format.
Keeping on original subject token %1 infoRole Adapter Normal operation; no action is necessary.
Binding data to insert placeholders infoRole Adapter
Polling for database change
Normal operation; no action is necessary.
infoRole Adapter
Terminating agent infoRole Adapter
Unable to insert %1 into list errorRole Adapter
Normal operation; no action is necessary.
Normal operation; no action is necessary.
Wildcard TIBCO Rendezvous subject names are not currently supported for preregistered listeners.
Updating CM sequence failed errorRole Adapter Currently not used.
%1Error binding parameter %2 errorRole Adapter There was a database error that occurred while binding parameters to a SQL statement. The message will not be processed. Use the database error if any to determine what the problem is.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
316 | Appendix B Trace Messages
Status Code
AEADB-700099
AEADB-700100
AEADB-700101
AEADB-700102
AEADB-700103
AEADB-700104
AEADB-700105
Role Category Resolution (Cont’d)
RequestReply: Error retrieving value for parameter %1 errorRole Adapter A request has no value specified for input parameter
%1. Add a (data, rvmsgData) field to the [Bind Data] of the request.
Received message: infoRole Adapter
Transaction rollback failed errorRole Adapter
Normal operation; no action is necessary.
The database was unable to rollback the transaction.
Use the error returned by the database to determine how to allow this transaction to roll back.
Database object %1 not found errorRole Adapter The database object was not found. Check to see if the object really exists (perhaps in another schema) and if you have permission to access it.
%1Unknown column type: %2 for field: %3. Ignoring warnRole Adapter The type %2 is an invalid AE class type. For this particular situation, the adapter will skip this attribute and continue processing. Check in the repository for attribute %3 and change the class type to a valid AE class type.
Insert into the exception table failed errorRole Adapter There was an error inserting into the exception table.
This is a fatal error and the adapter will terminate.
Use the error returned by the database to fix the inserts into the exception table.
%1%2 are not supported.
errorRole Adapter These AE/TIBCO Rendezvous data types are currently not supported by the adapter. Use only supported data types to represent this field instead; for example, a string or binary.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Status Messages | 317
Status Code
AEADB-700106
AEADB-700107
AEADB-700108
AEADB-700109
AEADB-700110
AEADB-700111
AEADB-700112
AEADB-700113
AEADB-700114
AEADB-AEADB
_700301
Role Category
No data fetched for %1 infoRole
New SQL: %1
Adapter
Resolution (Cont’d)
Normal operation; no action is necessary.
infoRole Adapter Normal operation; no action is necessary.
Bulk insert of %1 rows executed for %2 infoRole Adapter Normal operation; no action is necessary.
Error executing bulk insert of %1 rows for %2 errorRole Adapter There was an error doing the bulk insert into the table. Use the error returned by the database to determine how to fix inserts into the table.
Statement changed, flush all previous bulk insert rows infoRole Adapter Normal operation; no action is necessary.
Reassign data value to insert statement: infoRole Adapter Normal operation; no action is necessary.
Cannot find publication entry. Not publishing message.
errorRole Adapter
Error retrieving column %1
Internal error. Contact TIBCO Support.
errorRole Adapter The adapter could not retrieve this attribute from the message. Make sure the incoming message contains a value for this attribute.
%1 errorRole Adapter Internal error. Contact TIBCO Support.
Error executing listen_alert procedure call errorRole Adapter Check the corresponding database error.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
318 | Appendix B Trace Messages
Status Code
AEADB-AEADB
_700302
AEADB-AEADB
_700303
AEADB-AEADB
_700304
AEADB-AEADB
_700305
AEADB-AEADB
_700306
AEADB-AEADB
_700307
AEADB-890001
AEADB-890002
AEADB-890003
Role Category Resolution (Cont’d)
Error preparing listen_alert procedure call, stop alerter thread errorRole Adapter Check if the listen_alert procedure exists in the database and if the user has authorization to execute it.
Listen_alert procedure call not found, stop alerter thread errorRole Adapter Check if the listen_alert procedure exists in the database and if the user has authorization to execute it.
Cannot stop alerter successfully, stop_alerter_agent call failed.
errorRole Adapter Check if the listen_alert procedure exists in the database and if the user has authorization to execute it.
Error registering alerter, config_alerter procedure call failed, stop alerter thread errorRole Adapter The alerter failed to add the AQ subscriber. Check if the AQ database objects are configured properly in the database and if the user has authorization to access it
Error unregistering alerter, cleanup_alerter procedure call failed.
errorRole Adapter The alerter failed to remove the AQ subscriber.
Check if the AQ database objects are configured properly in the database and if the user has authorization to access it
Stopped ALerter infoRole Adapter
AEADB-CONN-RETRY
Normal operation; no action is necessary.
infoRole Adapter Reconnect attempt %1 for service %2.
AEADB-CONN-RETRYSUCCESS infoRole Adapter
AEADB-CONN-RETRYFAIL
Reconnect succeeded on attempt %1 for service %2.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Status Messages | 319
Status Code
AEADB-890004
AEADB-890005
AEADB-890006
AEADB-890007
AEADB-910004
AEADB-910005
Role warnRole
Category
Adapter
Resolution (Cont’d)
Reconnect failed on attempt %1 for service %2 -- will retry in %3 milliseconds. Make sure it is possible to establish an ODBC connection to the database.
AEADB-CONN-PUBDUP warnRole Adapter
AEADB-CONN-REQERR errorRole Adapter The request received could not be processed due to connection errors. Make sure it is possible to establish an ODBC connection to the database.
AEADB-CONN-STOP errorRole Adapter
AEADB-CONN-SVCSUSPEND
Adapter stopping due to persistent connection errors.
Please check your database and restart adapter. Make sure it is possible to establish an ODBC connection to the database.
infoRole Adapter Adapter suspending service %1 due to persistent connection errors.
AEADB-STARTUP-4 errorRole Startup Startup Error. SDK Exception %1 occurred in the adapter initialization while creating the
MAppProperties object. The Repository URL is %2 and the Configuration URL is %3. Please see SDK documentation for Repository URL and
Configuration URL specification. Please cut and paste from SDK documentation for the above.
AEADB-STARTUP-5
Connection reestablished for the publisher - message may be a duplicate of a previously published message.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
320 | Appendix B Trace Messages
Status Code Role errorRole
Category
Startup
Resolution (Cont’d)
Startup Error. SDK Exception %1 received on starting the adapter after initialization. The
Repository URL is %2 and the Configuration URL is
%3. Please verify your repository and environment settings. See the User Guide documentation.
AEADB-910007 AEADB-STARTUP-7 errorRole Startup Startup Error. Unable to create a connection with the target database using the dsn %1. The database error is: %2 Terminating adapter. Please verify your repository settings for the validity of connection parameters. See the User Guide documentation.
AEADB-920001 AEADB-SUB-1 errorRole Subscriber Subscription error. Subscription service %1 listening on %2 received an unexpected event: %3. The
Repository URL is %4 and the Configuration URL is
%5. Check the configuration of the application that is publishing the event and make sure that it matches the inbound event definition for the above subscription service. Please see User Guide for details on configuration of subscription service.
AEADB-920002 AEADB-SUB-2 errorRole Subscriber Subscription error. Subscription service %1 failed to deserialize the event received on subject %2 and
SDK exception thrown is %3. The event is: %4. The
Repository URL is %5 and the Configuration URL is
%6. Check the configuration of the application that is publishing the event and make sure that it matches the inbound event definition for the above subscription service. Please see User Guide for details on configuration of subscription service.
AEADB-920006 AEADB-SUB-6 errorRole Subscriber Subscription error. Subscription service %1 listening on subject %2 received error %3 in SDK message level UserExit %4. Make sure the UserExit parameters are valid and the user exit is invokable from SDK.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Status Code
AEADB-920007
Role Category
AEADB-SUB-7 errorRole Subscriber
Status Messages | 321
Resolution (Cont’d)
Subscription error. Subscription service %1 listening on subject %2 could not get the class description of
%3. The Repository URL is %4 and the
Configuration URL is %5. Please check the repository configuration for this service. Please make sure the classes to be used by this service are accessible in the repository. Please see User Guide for details on how to configure, run and test the subscription service.
AEADB-920015 AEADB-SUB-15 errorRole Subscriber Subscription error. Subscription service %1 listening on subject %2 failed due to database error: %3
Database is %4. The database commands and parameters are %5. Please look at the database error, note the database error code and consult with your database documentation.
AEADB-920017 AEADB-SUB-17 errorRole Subscriber Subscription error. Subscription service %1 listening on %2 could not send response %3 on reply subject
%4. The SDK error is %5. Please check your repository settings for the publish endpoint of this subscription service. Please see user guide on how to configure the subscription service.
AEADB-930002 AEADB-PUB-2 errorRole Publisher Publication error. Publication service %1 with publication subject %2 encountered database error:
%3 while trying to create publish event with schema
%4. Database is %5. The database command is %6.
Make sure that the publication service is configured properly. Please look at the database error, note the database error code and consult with your database documentation.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
322 | Appendix B Trace Messages
Status Code
AEADB-930003
AEADB-940001
AEADB-940009
AEADB-940010
AEADB-940012
Role Category
AEADB-PUB-3 errorRole Publisher
Resolution (Cont’d)
Publication error. Publication service %1 with publishing subject as %2 received event database
%3. It failed while converting the event to
"Minstance" as it could not get the class description for %4. Repository URL is %5 and the Configuration
URL is %6. Please verify the configuration of the publication service and check that the schema/class definitions are present in the repository. Please see
User Guide for details on how to configure a
Publication service.
AEADB-REQRESP-1 errorRole Request_Respo nse_Server
Request-Response error. Request-Response service
%1 listening on %2 received unexpected null data in incoming request. Expects object %3. The
Repository URL is %4 and the Configuration URL is
%5. Please check the configuration of the application that is requesting the event and make sure that it matches the inbound event definition for the above
RequestResponse service. Please see User Guide for details on configuration of RequestResponse service.
AEADB-REQRESP-9 errorRole Request_Respo nse_Server
Request-Response error. Request-Response service
%1 listening on subject %2 failed due to database error: %3Database is %4 and inbound event is %5.
Please check the target application command and the parameters and make sure they are valid. Please look at the database error, note the database error code and consult with your database documentation.
AEADB-REQRESP-10 errorRole Request_Respo nse_Server
Request-Response error. Request-Response service
%1 listening on subject %2 failed to create Reply
Business Object. Please check the database command and the parameters and make sure they are valid.
AEADB-REQRESP-12
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Status Messages | 323
Status Code
AEADB-990002
Role errorRole
Category
Request_Respo nse_Server
Resolution (Cont’d)
Request-Response error. Request-Response service
%1 listening on subject %2 receive an error while sending Data on Reply Address %3. Error Message
%4. Please check whether the request client is alive or message transport is functioning.
AEADB-SHUT-2 errorRole Shutdown Shutdown error. SDK cleanup exception = %1.
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
324 | Appendix B Trace Messages
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Appendix C
Adapter Properties File
Topics
•
Overview, page 326
•
Properties File Format, page 327
•
Runtime Adapter Properties File Parameters, page 328
•
Obfuscating or Encrypting a Password in the Properties File, page 341
•
Using Hints, page 343
| 325
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
326 | Appendix C Adapter Properties File
Overview
The runtime adapter parses a properties file at startup. The default runtime adapter properties file is named adbagent.tra
.
The default properties file is located in the
TIB_ADADB_HOME
\bin
subdirectory.
Each line in a properties file is a single property. Each property consists of a key and a value. The key starts with the first non-whitespace character and ends at the first "
=
", "
:
", or whitespace character. The value starts at the first character after the equal sign (=). For example: tibco.configurl=/tibco/private/adapter/test/config/config1 tibco.repourl=tibcr://TEST_PROJECT tibco.username=admin tibco.password=samplePassword tibco.clientVar.service=7600 tibco.clientVar.daemon=tcp:7600
Properties defined in the properties file override the same properties defined in the project.
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Properties File Format | 327
Properties File Format
The following restrictions apply to properties:
• The "
!
" character may not be used as a comment line indicator. Only the "
#
" character is recognized.
• The line continuation character is ignored (a value must fit on a line).
• The key may not contain any of the termination characters. Java allows termination characters by escaping the value with a preceding "\" character. TIBCO ActiveMatrix
Adapter for Database does not support this syntax.
Tagging Values for Obfuscation
The presence of a "
#
" character as the first character in a value (not the key) indicates that the value has been obfuscated or is to be obfuscated. The obfuscation command-line tool prompts for values to be obfuscated when it encounters a value with "
#
" as the first character in the properties file.
When the obfuscate tool is run, it rewrites the properties file with the obfuscated value in place. See
Obfuscating or Encrypting a Password in the Properties File on page 341
for more information.
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328 | Appendix C Adapter Properties File
Runtime Adapter Properties File Parameters
Properties are in two categories:
Required Properties
Additional Properties
listed and described below.
Required Properties
In order for a properties file to be used with a runtime adapter, the following properties must be correct for the adapter’s configuration.
All paths inside a properties file, including Microsoft Windows directory names, must use forward slashes.
Table 48 Required Runtime Adapter Properties File Parameters
Property tibco.repourl repourl
Description
The absolute pathname to the local repository where the adapter instance is defined. For example:
C:/TIBCO/LocalRepositories/repo.dat
For a remote project, the repourl value should use the form tibco.repourl tibcr@ name where name is the repository name.
For example: tibco.repourl tibcr@ADBRepoDefault
For Unix systems, the path separator should include a single slash, "/". For example:
/local/tibco/repo/repo.dat
tibco.configurl relative_path or tibco.configurl absolute_path tibco.instanceid instance name tibco.clientVar.adb.password
The location of the adapter service inside the project file. If a relative path is specified, the adapter service is assumed to be under the default area in the project file (/ tibco/private/adapter/)
.
For example, the following value connects to an adapter service named adbpub
in the / tibco/private/adapter/
directory: tibco.configurl adbpub
If an absolute path is specified, the adapter instance is looked up in the repository as defined by the argument. For example: tibco:configurl /tibco/private/adapter/adbpub
The name of the adapter instance.
The length of the name cannot be larger than 80 characters.
The password to connect to the targeted database. This can be
obfuscated using the instructions in Obfuscating or
Encrypting a Password in the Properties File on page 341 .
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Runtime Adapter Properties File Parameters | 329
Table 48 Required Runtime Adapter Properties File Parameters (Cont’d)
Property application.args
Description
The properties (
.tra
) file to pass to TIBCO ActiveMatrix
Adapter for Database. For example: application.args adb agent -system:propFile
C:/tibco/adapter/adadb/6.0/bin/ adb sub.tra
application.start.dir
The pathname of the adapter to start. For example: application.start.dir C:/tibco/adapter/adadb/6.0/bin/ application.library
application.ase.library
The name of the dynamic library of the adapter instance.
The name of the dynamic library of the adapter service engine instance.
This property is used only on the UNIX platforms.
Additional Properties
You can modify the following parameters as necessary. Properties that start with ntservice are available only on Microsoft Windows platforms. The following table is alphabetically sorted by the property name.
All paths inside a properties file, including Microsoft Windows directory names, must use forward slashes.
Table 49 Additional Runtime Adapter Properties File Parameters (Sheet 1 of 12)
Property adb.
publication_service_name
.lookback
Description
Enables the adapter to look for remaining records if it did not fetch the number of records specified by the pollingBatchSize
parameter for the publisher.
For example, if the publisher service name is
ADBPublisher
, the property name is adb.ADBPublisher.lookback
. adb.
publication_service_name
.preRegister
edListeners
Preregisters RVCM names for the specified subjects.
For example, adb.ADBPublisher.preRegisteredListeners=adb.sub1:rvcm1,ad b.sub2:rvcm2 preregisters RVCM name rvcm1
to subject adb.sub1
, and RVCM name rvcm2
to subject adb.sub2
.
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330 | Appendix C Adapter Properties File
Table 49 Additional Runtime Adapter Properties File Parameters (Sheet 2 of 12)
Property adb.
table_name
.poll.hint. hint_value
Description
This feature helps improve the performance of your queries. This feature is only supported by Oracle and
SQLServer databases.
See
Using Hints on page 343 for more information.
adb.addCustomHawkMethodsToClassMAgent on|off
The property is not set by default. Setting the property to off
disallows adding custom methods to the adapter’s standard microagent. Setting to on allows custom methods to be added to the adapter’s standard microagent.
adb.as400.defaultLibrary
adb.as400.library
adb.batchPubStatusUpdates on|off -max_rows adb.createMutextable
adb.customScaleForNumberType
adb.database
The default iSeries library to be accessed.
The name of the library where the programs will be created.
When adb.PollingBatchSize
is used, this optimizes publishing performance by batching message status updates to the publishing table. Do not use this option when messages are published using a parameterized subject name.
If an adapter instance stops before a batch update is performed, the status column is not updated. As a result, duplicate messages are published when the instance is restarted.
When set to off
, the adapter does not create the mutex table that is used in the fault tolerance mode.
The mutex table can be manually created before starting the adapter with the following SQL command:
CREATE TABLE <mutex_table_name> (COL1 char(1))
The default value is on
.
This property sets the default scale of Oracle
Number(empty) datatype.
The DB2 database name for OS390. The adapter uses the value of this property when creating the table used by the fault tolerance functionality.
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Runtime Adapter Properties File Parameters | 331
Table 49 Additional Runtime Adapter Properties File Parameters (Sheet 3 of 12)
Property adb.debug
Description
The debug printing level. If not specified, the default,
0
, is used. Possible values are:
0 - No debug information displayed.
1 - SQL commands executed with the database display.
2 - In addition to 1, the ODBC data source for each
SQL command displays.
3 - Displays values for all ODBC placeholders.
adb.disableTerminationSubject
When this property is set to on
, the adapter does not terminate on receiving a termination subject message.
adb.dsn
adb.encoding
adb.groupsize
ODBC system data source name. If not specified, the system data source name is read from the repository.
The encoding to use. Required when using a non-ASCII character set, as in globalization. See
, for more information.
Valid Values
The corresponding TIBCO Designer selection is in parenthesis.
(no value) defaults to ASCII ibm-1370 (Big5 ) tibx-eucJP ( EUC-JP) ibm-1386 (GBK )
LATIN_1 (ISO8859-1 ) ibm-949 (KSC-5601 ) ibm-943 ( Shift_JIS (CP943)) tibx-943 ( Shift_JIS (TIBCO))
UTF8 ( UTF8)
Specifies the number of rows to publish in a single message. Overrides the
Group Size
setting in the publication service configuration.
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332 | Appendix C Adapter Properties File
Table 49 Additional Runtime Adapter Properties File Parameters (Sheet 4 of 12)
Property adb.heartbeat
Description
The time interval, in milliseconds, the secondary instance(s) waits before it tries to lock the table specified by the adb.mutex
property.
If neither the adb.primary.heartbeat
or adb.secondary.heartbeat
properties are specified, the value of this property will be used as both the primary and secondary heartbeat.
Default value is 10000ms adb.jmscompress on|off adb.maxLongLen
adb.maxQuery
adb.mutex
adb.noDupDetection
adb.originalSchema
Applies only to the publication service with JMS transport.
Either on
or off
. The default value is off
, which indicates that JMS messages will not be compressed.
The buffer size. Used for long data types such as
BLOB.
The maximum number of queries the secondary instance would send to the primary to determine if the primary instance is still active. Default value is
3.
This is a table that is used by the fault tolerance functionality. When an adapter instance starts and this property is present, it will try to issue an exclusive lock on the named table before processing any messages.
The adapter instance that is able to lock this table is considered a primary instance. All instances that are not able to issue an exclusive lock on this table are considered secondary instances.
The table name is shared within a fault tolerance group. For example, adb.mutex FTtablename
.
Disables detection of duplicate configurations.
Either on or off. The default value is off which indicates that duplicate configurations will be detected.
The design-time table objects schema.
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Runtime Adapter Properties File Parameters | 333
Table 49 Additional Runtime Adapter Properties File Parameters (Sheet 5 of 12)
Property adb.password
Description
Password for the user account used to access your database. If not specified, the password stored in the repository is used. adb.payloadOnError on|off adb.perfMon on|off
This property specifies whether only the error information or all the logging information is printed in the log file.
Either on
or
off
. The default value is off
. If it is on or the Generate Payload On Error checkbox on the
General tab is checked when configuring an adapter instance, and the Log Info Messages checkbox on the
Logging tab is unchecked, only the error log information will be printed.
Either on
or off
. The default is off
.
adb.PollingBatchSize
adb.PollingInterval
adb.PollingCommitForDB2
adb.primary.heartbeat
Applies only to publisher instances. Limits the amount of messages to be picked up. The value indicates the number of parent rows to fetch for a poll interval. The default value,
0
, indicates that all new rows should be fetched.
Specific polling period. Applies only to publisher instances. If not specified the default, 10, 000 milliseconds, is used.
Either on or off. The default is off.
When using the adapter in the fault tolerance mode, this is the time interval (in ms) for which the adapter waits before issuing a dummy select statement.
This select statement is used to maintain the connection that holds the lock.
Default value is 10000.
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334 | Appendix C Adapter Properties File
Table 49 Additional Runtime Adapter Properties File Parameters (Sheet 6 of 12)
Property adb.pubBatchConfirmSize
Description
Applies only to publisher instances with publications that use certified message delivery. Optimizes performance by batching message status advisories to the publishing table. The value indicates the number of advisory messages to include in a single batch.
Do not use this option when messages are published using a parameterized subject name.
Note: If an adapter instance stops before a batch update is performed, the status column is not updated. As a result, messages that were successfully published might still have a status of
P
(pending) in the publishing table when the adapter instance is restarted. In this case, the ledger file contains the correct status information. A smaller value for this property decreases this risk.
adb.pubBatchConfirmTimeout
Applies only to publisher instances with publications that use certified message delivery. This property specifies the number of milliseconds to wait before updating the status column. After this interval, an update is performed even if the batch size value is not reached. The default value is
10,000
(10 seconds). A value of 0 means that no timeout interval is used.
Do not use this option when messages are published using a parameterized subject name.
Note: If an adapter instance stops before a batch update is performed, the status column is not updated. As a result, messages that were successfully published might still have a status of
P
(pending) in the publishing table when the adapter instance is restarted. In this case, the ledger file contains the correct status information. A smaller value for this property decreases this risk. adb.publishChildData
adb.RequestResponseMaxRows
Either on or off. Applies only to publisher instances.
Enables publishing of table rows related to the source publishing table. By default, related table rows are not published.
This property specifies the maximum number of rows to fetch. This can be used limit the memory usage of the adapter. The unfetched rows will be ignored by the adapter.
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Runtime Adapter Properties File Parameters | 335
Table 49 Additional Runtime Adapter Properties File Parameters (Sheet 7 of 12)
Property adb.requestResponseThreads
Description
The number of threads used by the Request/response
Service. The default value is 1.
adb.RetryTotal
adb.runtime.publisherSchema
adb.runtime.schema
adb.rvAdvisoryNoLog on|off adb.rvMaxQueueSize
adb.secondary.heartbeat
adb.setClientInfo on|off
Total number of reconnection attempts.
The runtime publisher table schema. This overrides the adb.runtime.schema
setting. This can be used if the user has a different schema for the publishing table than the other table objects, such as the source table.
The runtime table objects schema.
• If adb.originalSchema
is specified, the adapter will compare the adb.originalSchema
with the prefix of the table objects. If they are the same, the adapter will replace the design-time schema with this runtime schema. Otherwise, no action will be taken.
• If adb.orignalSchema
is not specified, the adapter will append this runtime schema to all table objects that do not have any schema specified at design time.
This property specifies whether RV advisory messages are be logged in the adapter log files. The default value is off
.
Applies only to subscriber instances. Maximum number of messages to allow in the TIBCO
Rendezvous event queue. The default value is
0
, which means no limit is placed on event queue size.
The time interval that secondary instance waits before sending the next query message to detect the existence of the primary instance.
Default value is 10000.
When set to on
, the adapter will call
SET_CLIENT_INFO to set the database session client information.
The default value is on
.
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336 | Appendix C Adapter Properties File
Table 49 Additional Runtime Adapter Properties File Parameters (Sheet 8 of 12)
Property adb.setEmptyStringNullForRvMsg on|off
Description
Either on
or off
. Specifies whether the RVMSG fields of an empty string are treated as NULL or "" (empty strings). The default setting is off
.
If the property value is set to on
, empty strings are treated as NULL and if the property value is set to off
, empty strings are treated as empty strings if the database allows it.
adb.SleepBetweenRetries
adb.stmtCache
adb.subBatchCommitSize
adb.subBatchCommitTimeout
adb.subBulkInsertSize
Milliseconds of sleep between two reconnection attempts.
The number of cache statements for a generic RPC request/ reply service.
The number of statements that the adapter will cache so that it will execute the statement directly for repeated requests. If the cache is full, the adapter will remove the oldest message from the cache and will add the new statement. The default setting is off.
Example, adb.stmtCache 10
Applies only to subscriber instances. The number of messages to batch before invoking a commit operation. The default is
0
(zero).
Note: if messages greater than 32K are published, batching is automatically turned off.
Applies only to subscriber instances. The amount of time that can expire after which a batch commit operation is invoked. If not specified the default value of 10,000 milliseconds is used.
Applies only to subscriber instances. All incoming messages to insert are stored until this size is reached.
Then a bulk insert operation is performed on the destination table. This value must be less than or equal to the value specified for adb.subBatchCommitSize
, if used. The default value is
1
.
If an update statement is published while messages are being batched, the bulk insert is performed regardless of whether the size value has been reached. After records have been inserted, the update operation is performed.
Note: Do not use this option if LONG, LONG RAW, image, or varbinary records are published.
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Runtime Adapter Properties File Parameters | 337
Table 49 Additional Runtime Adapter Properties File Parameters (Sheet 9 of 12)
Property adb.tablespace
Description
The DB2 tablespace name for OS390. The adapter uses the value of this property when creating the table used by the fault tolerance functionality.
adb. taskBackLogLimitInBytes adb. taskBackLogLimitInMessages adb.terminateOnPubFail
The scheduler stores tasks in a queue. This property limits the maximum size of that scheduler task queue by the number of bytes. The properties can control the memory usage on the adapter side.
This value must be an integer. The default value is unspecified, which indicates that there is no limit to the size of the scheduler task queue.
The scheduler stores tasks in a queue. This property limits the maximum size of that scheduler task queue by the number of messages. The properties can control the memory usage on the adapter side.
This value must be an integer. The default value is unspecified, which indicates that there is no limit to the size of the scheduler task queue.
Specifies that if publication fails, the agent will terminate after the status has been updated to ’F’. The default value is off.
adb.traceOldMessages on|off adb.unicode
adb.useBetweenClause
Either on or off.
The unicode setting.
The default value is
UTF8
.
Valid values are
UTF8
and
UTF16
Additionally, the following options have to be set:
On Microsoft Windows, select the Enable N-CHAR option from the Advanced tab when configuring the
ODBC system data source.
On UNIX platforms, set the
EnableNcharSupport
option to 1 in the ODBC initialization files.
See the ODBC driver documentation for more details.
For Microsoft SQL Server, set the value of this property to UTF16.
This property disable the use of the BETWEEN clause in the select query of the publisher.
The default value is on
.
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338 | Appendix C Adapter Properties File
Table 49 Additional Runtime Adapter Properties File Parameters (Sheet 10 of 12)
Property adb.useExceptTable on|off
Description
Enables the use of the exception table. The exception table is defined when a subscription is created. adb.user
adb.useSqlColumns on|off adb.verbose on|off adb.wchar ntservice.account
ntservice.binary.path.absolute
ntservice.dependencies
Database account name used by the adapter to access your database. If not specified, the database username stored in the repository is used.
Either on
or off
. Specifies whether the adapter should use SQLColumns() instead of a SELECT query to retrieve metadata for a table.
Note: Typically, a
SELECT * FROM <table> WHERE 1>9
(which returns no results) is the fastest way to get metadata for that table. However, on some databases, such as DB2 OS390 v6, the database is not optimized for this query and a full table scan can result. Using an ODBC API call,
SQLColumns()
, can avoid this.
Verbose mode. Print all available information to the console window or log file location. By default the verbose mode is off.
Default is SQL_C_CHAR. Required when using
UTF-8 encoding with an adapter that uses a
DataDirect driver to retrieve UTF-8 data from the database.
If the adb.unicode is set, this property is set by default to SQL_C_BINARY to retreive unicode data.
Username under which to run the Windows Service.
You can use this property to initially set the account for the service, but once the service is installed, use the
Services
control to change the user account of services.
Absolute path to the executable that is run when the service is started. For example: ntservice.binary.path.absolute
C:/tibco/adapter/adadb/6.0/bin/ adb agent.exe
The number of dependencies.
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Runtime Adapter Properties File Parameters | 339
Table 49 Additional Runtime Adapter Properties File Parameters (Sheet 11 of 12)
Property ntservice.displayname
Description
Name to display in the Services control for this
Windows Service.
This property is useful if you wish to have multiple
Windows Services for the same executable. That is, you may wish to have two adapter running on the same machine. By specifying different service names and display names for the adapters, you can accomplish this. ntservice.interactive true|false Either true or false. Specifies whether the Windows
Service is interactive. Set to false if you are not using a system account.
ntservice.name
ntservice.password
ntservice.starttype manual|automatic
Name for this Windows Service.
This property is useful if you wish to have multiple
Windows Services for the same executable. That is, you may wish to have two adapters running on the same machine. By specifying different service names and display names for the adapters, you can accomplish this.
For example: ntservice.name adapter_instance_name
Password for the username in the ntservice.account
property.
You can use this property to initially set the password for the user account, but once the service is installed, use the
Services
control to change the password.
Start type for this Windows Service. Either manual
or automatic
. For example: ntservice.starttype automatic
You can use this property to initially set the start type for the service, but once the service is installed, use the Windows Services control to change the start type of services.
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340 | Appendix C Adapter Properties File
Table 49 Additional Runtime Adapter Properties File Parameters (Sheet 12 of 12)
Property tibco.clientVar
Description
Runtime values for global variables defined inside the repository. This value takes precedence over any global value set in the repository. Substitution takes place at runtime.
You append the global variable to tibco.clientVar
, then give its value. For example, a global variable named
DirLedger
is specified as follows: tibco.clientVar.DirLedger
C:/tibco/adapter/adadb/6.0/myledger
Do not include the
%
character of substitution variables. For example, to set
%%RvDaemon%%="tcp:7500"
, use tibco.clientVar.RvDaemon
"tcp:7500"
.
tibco.username
tibco.password
-version
User name and password used by the repository server to access the project. The password can be
obfuscated using the instructions in Obfuscating or
Encrypting a Password in the Properties File on page 341
.
Displays a banner with version information, then exits. This option is for troubleshooting purposes only.
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Obfuscating or Encrypting a Password in the Properties File | 341
Obfuscating or Encrypting a Password in the Properties File
Password Handling
At design time, the adapter uses a password to connect to the backend application and fetch metadata. At runtime, the adapter uses a password to connect to the back-end application and interoperate with it. If you create a 4.x configuration using TIBCO
Designer 5.5, and use the configuration with a 4.x adapter version, some special considerations are required for security.
If you plan to run the adapter locally, define the runtime password value to be a global variable. Before starting the adapter, include the runtime password as client variable in the adapter's
.tra
file and obfuscate it using obfuscate tool. For example, if the password value is defined as
%%myPassword%%
, create a global variable named myPassword
in the global variables section with no value and include the following entry in the adapter's TRA file: tibco.clientVar.myPassword
Do not set the password by typing
Password
in the Global Variables section for adapter configurations that are set to
AE Version 4.0
or
AE Version 5.0
(in the Version field of the
Configuration tab) or any intermediate version.
Obfuscating a Password
The runtime adapter needs a password to access the backend database. If you have unchecked the Remember Password checkbox in the Design-time Connection tab, the global variable
%%adb.password%%
is saved in the project. For runtime, you open the
.tra
file and add the password in clear text in the tibco.clientVar.adb.password=# password
property. You can use the obfuscate tool to hide this password so it cannot be viewed by unauthorized users.
If you don’t want to obfuscate the password, remove the
#
at the beginning of the password.
To obfuscate the password:
1. Using TIBCO Designer, open the adapter configuration and display the Design-time
Connection tab.
2. Uncheck the Remember Password checkbox.
3. Apply the changes and save the project. This saves the global variable
%%adb.password%%
as the value of the password property in the project.
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342 | Appendix C Adapter Properties File
4. In the runtime adapter properties file, verify that the tibco.clientVar.adb.password=# password property is defined in clear text.
5. Run the obfuscation tool supplied with the adapter with the properties file. This tool is named obfuscate.exe
and resides in the
TIBCO_HOME
\tra\version\bin
directory.
The command syntax is: obfuscate
TRA_file_path where
TRA_file_path
is the absolute pathname of the adapter properties file that contains the tibco.clientVar.adb.password=# password
property.
For example, on Microsoft Windows :
C:\tibco\tra\version\bin>obfuscate C:\tibco\adapter\adadb\ version
\bin\adbagent.tra
The password is now obfuscated and you can start the adapter with the changed properties file.
Encrypting a Password
Encryption is only supported for version 5.x adapters and higher. If you have a property in a properties file the needs to be encrypted, follow these steps:
1. In the property file, add the #! characters in front of the value you wish to encrypt. For example:
Repo.serverPassword = #!mysecret
2. Invoke the obfuscate utility from the command line:
TIBCO_HOME
/tra/ version
/bin/obfuscate.exe
--propertyfile= property_file_name
The next time you open the property file, mysecret
will have been replaced with a random sequence of characters.
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Using Hints | 343
Using Hints
Hints help improve the performance of your queries. When the adapter publication service executes a poll operation to fetch data from a table, using hints greatly enhances the query.
Note that in this release hints are only supported in Oracle and SQL Server databases.
Usage
To use hints add the following line to the adapter TRA properties file: adb.
table_name
.poll.hint hint_value where, table_name is the name of your table and
hint_value
is the hint.
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344 | Appendix C Adapter Properties File
Examples
a.
To force an index scan when polling in an Oracle database, set the property as follows: adb.p1.poll.hint /*+INDEX(P1,P1_INDX)*/ where p1
is the publisher table, and
P1_INDX
is the index created on the publishing table.
The adapter will execute this select query on the publishing table:
SELECT /*+INDEX(P1,P1_INDX)*/ * FROM P1 WHERE ID = ?
b. To use
NOLOCK
hint when polling in a SQL Server database, set the property as follows: adb.p1.poll.hint WITH(NOLOCK) where
P1
is the publisher table.
The adapter will execute this select query on the publishing table, but will not issue shared locks or honor exclusive locks:
SELECT * FROM P1 WITH(NOLOCK) WHERE ADB_L_DELIVERY_STATUS =’N’ c.
To force an index scan when the adapter fetches records from a child table set the property as follows: adb.C1.poll.hint /*+INDEX(C1,C1_INDEX)*/ where
C1
is the child table, and
C1_INDEX
is the index created on the child table.
The adapter will execute this select query on the child table:
SELECT /*+INDEX(C1,C1_INDEX)*/ * FROM C1 WHERE ID = ?
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
Index
Symbols
_
.
*
>
A
access to DB2 AS/400 tables
adapter changing a configuration
component (operation) information through TIBCO
Hawk
error messages when changing a configuration
naming restrictions
size limitations
stopping
tracing
unicode setting
adapter configuration, changing
,
Adapter Services folder
adapter setting client info
ADB_ERROR_TEXT
ADB_ERROR_TIME
time zone
,
ADB_L_CMSEQUENCE
ADB_L_DELIVERY_STATUS
ADB_OPCODE
,
ADB_REF_OBJECT column in the publishing table
ADB_SEQUENCE
ADB_SET_SEQUENCE
ADB_SOURCE
ADB_SUBJECT
ADB_TIMESTAMP
timezone
ADB_UPDATE_ALL
adbDateTime
adbPreCommit()
adding listeners
adding a sequence for parent-child
adding an association for parent-child
advanced folder
agents
alerter on Sybase SQL Server
alerts
auto-discovery process, TIBCO Hawk
B
binary type
bind statements
C
callout library
certified message delivery exception handling
moving ledger files
preregistering listeners
changes from the previous release
Class Microagent Name field, adapter
closure field
column names in an exception table
column names, reserved prefix
columns, maximum number
command line arguments
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
| 351
352 | Index commands adbagent
,
Connect
copy
cp
isql
select
,
,
,
,
,
,
,
,
,
sqlplus
,
,
tibrvsend
commit_and_notify_table
CONFIG_HOME
configuration properties, retrieving through TIBCO
Hawk
custom RPC operation
customer support
examples
REF cursor procedure
Exceed FAQ
exception table structure of
exception table, column names in
F
fault tolerance
file format dat
VC
Float data type
D
dat file format
data source, ODBC using
database errors, capturing
database type mapping
Date types
date/time values
dateTime
DB2 on OS/390 trigger statements syntax
debug, adapter option
,
delete trigger
Destination
distributed queues
dot character
dsn, adapter option
E
ENV_NAME
error messages about database cleanup
G
global variables
setting for monitoring
L
ledger files location
moving
publication size status
publication timeout status
retrieving information through TIBCO Hawk
listeners, adding
load balancing across adapters
in an adapter
,
Log File field, adapter
log file options
log files location
Log to Standard field, adapter
LONG data type
loop detection column used for
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
M
mapping database types
metadata
microagent methods supported
Microagent Session field, adapter
multiple file project
N
naming restrictions adapters
database columns
publishing table
subjects
notify procedure on Microsoft SQL Server
on Sybase
notifytable procedure on Microsoft SQL Server
on Sybase
NULL attributes
O
obfuscation
P
palettes
parameterized subject
binary type
Date types
Float type
illegal characters
Index | 353 parameters
AE Type
Child Table Mapping
Class Reference
,
Deploy On Save
Do Not Generate Triggers
Enable Loop Detection
Endpoint Reference
,
Join To
Publishing Table
Reply Subject
Subscriber Bulk Insert Size
Table Name
,
Tables and Columns
Type
Update Mode
Update Trigger
Use?
User Key
,
parent-child association
parent-child sequence
password property
PL/SQL procedure for REF cursor
preregistering listeners
publications size limitations
publish-child-data, adapter option
publishing by reference
source data
publishing table columns in
name size
restrictions for
Q
quality of service and load balancing
queue member load
,
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
354 | Index
R
record size, limitations
REF data type
reference object location
repository instance
request defined
request/response load balancing for
using
using multiple threads
,
response defined
reviewLedger, TIBCO Hawk method
RPC programs, client
rv_Rpc()
rv_Send()
rv_SendWithReply()
RVMSG_DATETIME
RVMSG_INT
RVMSG_OPAQUE
RVMSG_REAL
RVMSG_STRING
SQL_STATEMENT class, structure of
standard RPC operation
starting an alerter on Oracle
stopping an adapter
sub-batch-commit-timeout, adapter option
sub-bulk-insert-size, adapter option
subjects naming restrictions
parameterized
subscriber
using wildcards
subscriptions size limitations
wire format for
substitution
support, contacting
system configurl command-line argument
,
S
schema changes affecting adapter configuration
schema data
schemas for related tables
See
sequence number
source data publishing
source data publishing example
source table loop detection column
SQL statement terminator
SQL_BATCHRETURN class, structure of
SQL_BIND class, structure of
,
SQL_OPS class, structure of
SQL_RESULTSET class, structure of
SQL_RETURN class, structure of
SQL_ROW class, structure of
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
T
table access problems, overcoming
technical support
TIB_ADADB_HOME
TIBCO Hawk background information
enterprise monitor components
methods supported
Monitoring tab use with
TIBCO Hawk methods getComponents
getConfig
getRvConfig
getStatus
reviewLedger
TIBCO Rendezvous, retrieving configuration through
TIBCO Hawk
TIBCO_HOME
Tracing
tracing features
Tracing Levels and Fields
tracking identifier
Index | 355 triggers no primary key
U
underscore character
update trigger
Use Advanced Logging field, adapter
user authority
user callout library
user schema
username property
use-trace-file, adapter option
V
variable substitution
variables
version, adapter option
W
wildcard subject names
TIBCO ActiveMatrix Adapter for Database Configuration and Deployment
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Key features
Publish data from database
Subscribe to database changes
Execute database queries using a request-response service
Support for various database types
Comprehensive logging and tracing
Fault tolerance and load balancing
Integration with TIBCO Hawk for monitoring
Advanced features like parameterized subject/destination names and callout library
Frequently asked questions
The adapter supports a wide range of database types, including Oracle, SQL Server, Sybase, DB2, MySQL, Teradata, and more. Refer to the documentation for a complete list of supported databases.
Configuration of the adapter requires specifying connection details to the database, defining tables and services, and setting various options. This guide provides detailed instructions on how to configure the adapter.
Deployment and starting of the adapter are handled through the TIBCO Administrator interface. You will need to create an EAR file and deploy it to the server. This guide explains the deployment process in detail.