Person p = new Person();
p.setName("Gavin King");
p.setDob( new Date() );
Employee e = new Employee();
p.setEmployee(e);
e.setPerson(p);
Session s = openSession();
Transaction t = s.beginTransaction();
s.persist(p);
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
e = (Employee) s.createQuery("from Employee e where e.person.name like 'Gavin%'").uniqueResult();
assertEquals( e.getPerson().getName(), "Gavin King" );
assertFalse( Hibernate.isInitialized( e.getPerson() ) );
assertNull( e.getPerson().getCustomer() );
s.clear();
e = (Employee) s.createQuery("from Employee e where e.person.dob = :date")
.setDate("date", new Date() )
.uniqueResult();
assertEquals( e.getPerson().getName(), "Gavin King" );
assertFalse( Hibernate.isInitialized( e.getPerson() ) );
assertNull( e.getPerson().getCustomer() );
s.clear();
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
e = (Employee) s.createQuery("from Employee e join fetch e.person p left join fetch p.customer").uniqueResult();
assertTrue( Hibernate.isInitialized( e.getPerson() ) );
assertNull( e.getPerson().getCustomer() );
Customer c = new Customer();
e.getPerson().setCustomer(c);
c.setPerson( e.getPerson() );
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
e = (Employee) s.createQuery("from Employee e join fetch e.person p left join fetch p.customer").uniqueResult();
assertTrue( Hibernate.isInitialized( e.getPerson() ) );
assertTrue( Hibernate.isInitialized( e.getPerson().getCustomer() ) );
assertNotNull( e.getPerson().getCustomer() );
s.delete(e);
t.commit();
s.close();
