Hi there,
I have the following EJB, that works fine:
(the code below has been simplified)
@Stateless
public class LoginSession implements LoginSessionLocal {
@PersistenceContext
private EntityManager em;
public void saveUser(User user) throws FacadeException {
em.persist(user);
}
}
But I want to change it a little bit, dividing it in two classes, moving the blue lines from the Session class to the DAO implementation, like the following:
@Stateless
public class LoginSession implements LoginSessionLocal {
public void saveUser(User user) throws FacadeException {
(new LoginDAO()).saveUser(user);
}
}
------------------------------------------------------------------
public class LoginDAO {
@PersistenceContext
private EntityManager em;
public void saveUser(User user) {
em.persist(user);
}
}
Unfortunatelly, the injection does not work in the second case. The variable "em" is null. It works only in the first case. The annotation @PersistenceContext doesn't work if I put it in the utility class LoginDAO. It only works if I put it in the EJB implementation LoginSession.
Why? How can we solve this problem? Is it a bug of JBoss 7.1?
I am using JBoss 7.1 Community and JDK 1.7. It's an EJB Eclipse project within a EAR.
Can someone help me?
Thanks in advance,
Raffael Bechara
