This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
@Frits, I guess you would have meant that Timeout callback MDB
I got this excerpt from EJB3.1 spec-
5.4.12Transaction Context of Message-Driven Bean Methods A bean’s message listener and timeout callback methods are invoked in the scope of a transaction determined by the transaction attribute specified in the bean’s metadata annotations or deployment descriptor. If the bean is specified as using container-managed transaction demarcation, either the REQUIREDor the NOT_SUPPORTED transaction attribute must be used for the message listener methods, and either the REQUIRED, REQUIRES_NEW, or the NOT_SUPPORTED transaction attribute for timeout callback methods. See Chapter 13, “Support for Transactions”
Creator of Enthuware JWS+ V6