WebSphere Application Server Network Deployment, Version 6.0.x     Operating Systems: AIX, HP-UX, Linux, Solaris, Windows

J2EE Connector Architecture migration tips

Versions of WebSphere Application Server previous to Version 5.0 provided an initial implementation of the J2EE Connector Architecture (JCA) specification, Version 1.0. This implementation provided basic run time support based on the final JCA 1.0 Specification, but it was not a complete implementation.

Version 5.0 of the product provides a complete implementation of the JCA 1.0 Specification, which supports:

As of Version 6.0, the product provides a complete implementation of the JCA 1.5 Specification, which supports:

If you move from one of the earlier implementations of the J2EE Connector Architecture to the current implementation, be aware of the following:

For applications that use Web services and JCA connectors, be aware that those generated on WebSphere Studio Application Developer -- Integration Edition Version 4.1.1 can run unchanged on WebSphere Application Server Version 6.0 only if they are regenerated using WebSphere Studio Application Developer -- Integration Edition Version 5.0 tools, or Rational Application Developer tools. This limitation is because of the wsd14j.jar file. As delivered in WebSphere Application Server Enterprise Version 4.1, the file is not fully compliant with JSR 110 (because JSR 110 was not final at the time that Version 4.1 shipped). The wsd14j.jar file shipped with WebSphere Application Server Version 6.0, of course, is compliant. However, because most of the classes have the same package names and interfaces, BUT NOT ALL, the two wsd14j.jar files cannot co-exist in the same WebSphere Application Server installation.

JDBC provider templates: important general migration tip

Always handle the jdbc-resource-provider-templates.xml file as read-only . When updating this file, special consideration should be taken. Before installing a PTF, you should save your updated jdbc-resource-provider-templates.xml file. After applying the PTF, you will need to verify that the new jdbc-resource-provider-templates.xml file has your correct entries. If the entries are not valid, you will have to merge your changes into this new jdbc-resource-provider-templates.xml file manually.




Related concepts
Resource adapter
Connection factory
Data sources
Unshareable and shareable connections
Connection handles

Concept topic    

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Last updated: Mar 17, 2005 4:28:29 AM CST
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