Hibernate transaction not successfully started

Question

Consider this simple Hibernate scenario:

session = getHibernateSession();
tx = session.beginTransaction();
SomeObject o = (SomeObject) session.get(SomeObject         


        

Answer 1

One situation this can happen in is when the code is in an EJB/MDB using container-managed transactions (CMT), either intentionally or because it's the default. To use bean-managed transactions, add the following annotation:

@TransactionManagement(TransactionManagementType.BEAN)

There's more to it than that, but that's the beginning of the story.