Summary

J2EE Connectors are an important part of the J2EE developer's toolkit. They let you connect to non-J2EE systems with the same manageability and ease of use that you've grown to love in JDBC. Furthermore, Connectors make it easy to take advantage of existing resource adapters instead of writing your own integration code. However, you should remember that using Connectors will most likely make your application more difficult to deploy and manage. The last point to make is that if the Connector uses a native library, you cannot move your application to a different platform.

OC4J provides a solid implementation of the JCA specification, thereby allowing you to quickly customize, deploy, and use any standard J2EE Connector.