A Test-Driven Exploration of the Advanced Features of EJB 3.0

lthough the EJB 3.0 specification has yet to be released, it is already generating much interest in the software development community by both proponents and opponents alike. All recognize the need to find more productive methods for developing software; the debate centers on whether, and to what extent, EJB 3.0 will play a role in this new landscape. Debate notwithstanding, the release of the EJB 3.0 public draft and preliminary support in JBoss mean that now is a great time to explore this influential technology. In fact, reports of the use of EJB 3.0 in production systems are already emerging.

This article is the third in a three-part series exploring EJB 3.0 as defined in the public draft. Each article has introduced particular concepts from the specification and has walked you through the implementation of these techniques using JBoss. The first article introduced EJB 3.0, the philosophy behind it, and illustrated how to use it to develop Enterprise Bean Components. The second article introduced you to developing persistent entities with EJB 3.0. This third article will explore more advanced topics such as transaction management, callbacks, interceptors, and exceptions.