Java Persistence with Hibernate

11.4. Conversations with EJB 3.0

We have to go through our list again: persistence context propagation, handling of detached objects, and extended persistence contexts that span the whole conversation. This time, you'll add EJBs to the mix.

We don't have much more to say about detached entity instances and how you can merge modifications between persistence contexts in a conversation—the concept and the API to use are exactly the same in Java SE and with EJBs.

On the other hand, persistence-context propagation and extended persistence-context management with JPA become much easier when you introduce EJBs and then rely on the standardized context propagation rules and the integration of JPA with the EJB 3.0 programming model.

Let's first focus ...