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Assembling EJB 3.x modules

An enterprise bean is a managed Java component that can be combined with other resources to create Java Enterprise Edition (Java EE) applications.

This topic assumes that we have created and unit tested an enterprise bean to assemble in an enterprise application and deploy onto an application server.


Assemble an EJB 3.x module to contain enterprise beans and related code artifacts. Group web components, client code, and resource adapter code in separate modules. After the EJB module is assembled, install it as a stand-alone application or combine it with other modules into an enterprise application.

To learn about how to assemble an EJB 3.x module with an assembly tool, see the Rational Application Developer documentation.

Rational Application Developer can be extended with additional plug-ins to provide development support specifically for Java Persistence API (JPA).

See the Eclipse open source project, Dali, for a plug-in that provides this extension. See the related links in this topic for the Dali JPA tools website.

Issues and problems using this plug-in need to resolved through the Eclipse open source community.

What to do next

Deploy the EJB module.


  • References in application deployment descriptor files
  • Sequence grouping for container-managed persistence in assembled EJB modules
  • EJB modules
  • Assemble applications
  • Define container transactions for EJB modules
  • Set the run time for CMP sequence groups
  • Change applications to WebSphere "version specific" setRollbackOnly behavior
  • EJB references
  • EJB JNDI names for beans
  • Dali JPA Tools
  • Rational Application Developer documentation