[jboss-user] [EJB 3.0] - BMT does not work the expected way.
I am trying to persist data through a BMT. The code is as shown below:
package com.titan.travelagent;
import javax.ejb.Stateless;
import javax.ejb.TransactionManagement;
import javax.ejb.TransactionManagementType;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import javax.transaction.UserTransaction;
@Stateless
@TransactionManagement(TransactionManagementType.BEAN)
public class TravelAgentBean {
private static EntityManagerFactory factory = Persistence
.createEntityManagerFactory("titan");
public void createCabin(Cabin cabin) {
EntityManager manager = factory.createEntityManager();
try {
UserTransaction utx;
try {
utx = (UserTransaction) ((new InitialContext())
.lookup("UserTransaction"));
} catch (NamingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
utx.begin();
manager.persist(cabin);
utx.commit();
} catch (Exception e) {
e.printStackTrace();
} finally {
manager.close();
}
}
}
If I do "createCabin" it does not throw an exception , but I do not find the
data persisted into the database. If I change the private static EntityManagerFactory
factory = Persistence
.createEntityManagerFactory("titan");
to
@PersistenceContext(unitName="titan")
private EntityManager manager;
It starts working. But as far I understand
@PersistenceContext(unitName="titan")
private EntityManager manager; is supposed to be used for CMT.
Could someone please help and clarify if any thing else is required.
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