Session s = openSession();
Transaction tx = s.beginTransaction();
Master master = new Master();
master.setName("master 1");
Detail current = new Detail();
current.setCurrentVersion(true);
current.setVersion(2);
current.setDetails("details of master 1 blah blah");
current.setMaster(master);
master.setDetail(current);
Detail past = new Detail();
past.setCurrentVersion(false);
past.setVersion(1);
past.setDetails("old details of master 1 yada yada");
past.setMaster(master);
s.persist(master);
s.persist(past);
s.persist(current);
tx.commit();
s.close();
if ( getDialect() instanceof PostgreSQLDialect ) return;
s = openSession();
tx = s.beginTransaction();
List l = s.createQuery("from Master m left join m.detail d").list();
assertEquals( l.size(), 1 );
tx.commit();
s.close();
s = openSession();
tx = s.beginTransaction();
l = s.createQuery("from Master m left join fetch m.detail").list();
assertEquals( l.size(), 1 );
Master m = (Master) l.get(0);
assertEquals( "master 1", m.getDetail().getMaster().getName() );
assertTrue( m==m.getDetail().getMaster() );
tx.commit();
s.close();
s = openSession();
tx = s.beginTransaction();
l = s.createQuery("from Master m join fetch m.detail").list();
assertEquals( l.size(), 1 );
tx.commit();
s.close();
s = openSession();
tx = s.beginTransaction();
l = s.createQuery("from Detail d join fetch d.currentMaster.master").list();
assertEquals( l.size(), 2 );
tx.commit();
s.close();
s = openSession();
tx = s.beginTransaction();
l = s.createQuery("from Detail d join fetch d.currentMaster.master m join fetch m.detail").list();
assertEquals( l.size(), 2 );
s.createQuery("delete from Detail").executeUpdate();
s.createQuery("delete from Master").executeUpdate();
tx.commit();
s.close();
