Session s = openSession();
Transaction t = s.beginTransaction();
User gavin = new User("gavin", "jboss");
Group seam = new Group("seam", "jboss");
Group hb = new Group("hibernate", "jboss");
gavin.getGroups().add(seam);
gavin.getGroups().add(hb);
seam.getUsers().add(gavin);
hb.getUsers().add(gavin);
s.persist(gavin);
s.persist(seam);
s.persist(hb);
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
gavin = (User) s.get(User.class, gavin);
assertFalse( Hibernate.isInitialized( gavin.getGroups() ) );
assertEquals( 2, gavin.getGroups().size() );
hb = (Group) s.get(Group.class, hb);
assertFalse( Hibernate.isInitialized( hb.getUsers() ) );
assertEquals( 1, hb.getUsers().size() );
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
gavin = (User) s.createCriteria(User.class)
.setFetchMode("groups", FetchMode.JOIN)
.uniqueResult();
assertTrue( Hibernate.isInitialized( gavin.getGroups() ) );
assertEquals( 2, gavin.getGroups().size() );
Group group = (Group) gavin.getGroups().iterator().next();
assertFalse( Hibernate.isInitialized( group.getUsers() ) );
assertEquals( 1, group.getUsers().size() );
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
gavin = (User) s.createCriteria(User.class)
.setFetchMode("groups", FetchMode.JOIN)
.setFetchMode("groups.users", FetchMode.JOIN)
.uniqueResult();
assertTrue( Hibernate.isInitialized( gavin.getGroups() ) );
assertEquals( 2, gavin.getGroups().size() );
group = (Group) gavin.getGroups().iterator().next();
assertTrue( Hibernate.isInitialized( group.getUsers() ) );
assertEquals( 1, group.getUsers().size() );
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
gavin = (User) s.createQuery("from User u join fetch u.groups g join fetch g.users").uniqueResult();
assertTrue( Hibernate.isInitialized( gavin.getGroups() ) );
assertEquals( 2, gavin.getGroups().size() );
group = (Group) gavin.getGroups().iterator().next();
assertTrue( Hibernate.isInitialized( group.getUsers() ) );
assertEquals( 1, group.getUsers().size() );
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
gavin = (User) s.get(User.class, gavin);
hb = (Group) s.get(Group.class, hb);
gavin.getGroups().remove(hb);
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
gavin = (User) s.get(User.class, gavin);
assertEquals( gavin.getGroups().size(), 1 );
hb = (Group) s.get(Group.class, hb);
assertEquals( hb.getUsers().size(), 0 );
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
s.delete(gavin);
s.flush();
s.createQuery("delete from Group").executeUpdate();
t.commit();
s.close();
