I could prototype this and see what happens, but I am being lazy. I want to be able to inject an EJB3 into my JPA Entity Listener so that it can access functionality of the EJB during the PrePersist operation. Is that possible? If not... then under JBoss, will the Listener be created once, or once per method invocation? I guess I am trying to understand how lightweight each invocation will be in terms of doing JNDI lookups etcI could prototype this and see what happens, bu