Transactions and stateful - stateless beans interaction

luis.planella Jan 12, 2011 7:27 AM

Hi.

I'm using JBoss 6.0.0.

This is the first time I'm using a stateful bean, but I swear I have googled a lot and haven't found an specific answer

I have a stateful bean with an EntityManager injected with (PersistenceContextType.TRANSACTION).

From this bean, I invoke an stateless bean, which also has an injected EntityManager, and the method returns an entity.

I was expecting a single transaction to happen, and that the returned entity would be attached.

However, this is not the case, as I try to access a collection on that entity, and a LazyInitializationException is thrown.

How to make sure that the same transaction and entity manager is used on both beans?

Thanks a lot.

1. Transactions and stateful - stateless beans interaction

nickarls Jan 12, 2011 7:37 AM (in response to luis.planella)

Show some code. What is the complete call chain? Where does the lazy exception happen? One still has to be careful, using EJBs etc are no guarantees that there won't be LIE:s...
Actions
2. Transactions and stateful - stateless beans interaction

luis.planella Jan 12, 2011 7:52 AM (in response to nickarls)

Man, my bad.
The invoked service had a bean managed transaction, which was there by mistake.
Sorry .
Actions