"where c.contact.user_id = :user_id AND c.owner.user_id = :ownerId ";
Object idf = PersistenceSessionUtil.createSession();
EntityManager session = PersistenceSessionUtil.getSession();
EntityTransaction tx = session.getTransaction();
tx.begin();
Query query = session.createQuery(hql);
query.setParameter("user_id", user_id);
query.setParameter("ownerId", ownerId);
List ll = query.getResultList();
tx.commit();