UserTransaction - alternative access

LaLiLuna · **Posted:** Sat Jan 14, 2006 2:36 pm

Hello,
Hibernate 3.1
I deploy it with a hibernate.cfg configured for JTA

Code:

<property name="hibernate.transaction.factory_class">org.hibernate.transaction.JTATransactionFactory</property>
<property name="hibernate.transaction.manager_lookup_class">org.hibernate.transaction.JBossTransactionManagerLookup</property>

The HibernateJTFilter of the caveeatemptor and http://hibernate.org/42.html proposes the following code:

Code:

try {
    UserTransaction tx = (UserTransaction)new InitialContext()
                            .lookup("java:comp/UserTransaction");
                            
    tx.begin();

    // Do some work
    

    tx.commit();
}
catch (RuntimeException e) {
    tx.rollback();
    throw e; // or display error message
}

I used the following, which also seem to retrive a UserTransaction. Did I overlooked something or is it just the same.

Code:

Session session = HibernateUtil.getSessionFactory().openSession();
session.beginTransaction();
    // Do some work      
session.getTransaction().commit();

Regards Sebastian

steve · **Posted:** Sun Jan 15, 2006 8:28 am

They are equivalent in terms of transaction demarcation.

Specifically, http://hibernate.org/42.html is talking about "contextual sessions" using SessionFactory.getCurrentSession(). Currently, in JTA environments SessionFactory.getCurrentSession() must be called *after* the JTA transaction has been begun. Thus you would need the code suggested there.