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em.joinTransaction()
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Code: Select all
em.joinTransaction()
Code: Select all
EntityManagerFactory emf = Persistence.createEntityManagerFactory("aPU");
EntityManager em = emf.createEntityManager();
//This persistence context is created when the em is created.
// It is created outside the new transaction
//The new transaction is created and begin after the em is created.
em.getTransaction().begin();
Code: Select all
//In a stateful bean
@PersistenceContext(unitName="aPU")
EntityManagerFactory emf;
EntityManager em;
public void init(){
emf = Persistence.createEntityManagerFactory("aPU");
em = emf.createEntityManager();
}
public void add(....){
em.joinTranscation();
//anEntity is an entity
em.persist(anEntity);
}
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