I have some session beans that use EntityManager to manage entity beans that use annotations for persistences(hibernate).

I did not add any annotations for transactions. Its default is required. During processing one HTTP request, a number of session bean methods of different beans are called to insert entities into DB (MySQL) using
em.persist(entity)
but one method throwed an DB exception (duplicate ID). I expected the whole transaction to be rolled back. But it did not, leaving the data inconsistent.

Are the EMs from different session beans the same entity manager? they are injected using the same annotation
@PersistenceContext (unitName="pc")
Are all the session bean methods called during one HTTP request belonging to one Hibernate session, one transaction?
Do you need to add any transaction annotation to the session bean methods? what I need is that the all methods during one HTTP request belong to one transaction. Is the default sufficient?

Thanks.
Dave

A transactional persistence context is associated to the JTA transaction boundary.
An extended persistence context is associated to the SFSB lifetime.

Hi Emmanuel,

I am not familiar with JTA/SFSB. Could you explain what I need to do to enforce all session bean methods to be in one transaction during one HTTP request? or point me to the some docs? Thank you very much.

Happy new year!

I don't have any doc ref, you'll have to google them