Preface

This guide gets you started building EJB 3.0 and 2.1 Enterprise JavaBeans for Oracle Containers for J2EE (OC4J) using the TopLink persistence manager. It includes code examples to help you develop your application.

The Orion persistence manager is deprecated. Oracle recommends that you use OC4J and the TopLink persistence manager for new development. Using the migration tool (see "Migrating to the TopLink Persistence Manager"), you can easily migrate an existing OC4J application that uses EJB 2.0 entity beans with the Orion persistence manager to use EJB 2.0 entity beans with the TopLink persistence manager.

If you have questions about OC4J, see the OC4J user's forum at http://forums.oracle.com/forums/category.jspa?categoryID=13.

If you have questions or feedback about this documentation, see the documentation feedback forum at http://forums.oracle.com/forums/forum.jspa?forumID=165.