Session s = openSession();
Transaction t = s.beginTransaction();
Employee bob = new Employee("Bob");
Employee tom = new Employee("Tom");
Employee jim = new Employee("Jim");
Employee tim = new Employee("Tim");
Site melb = new Site("Melbourne");
Site geel = new Site("Geelong");
s.persist(bob);
s.persist(tom);
s.persist(jim);
s.persist(tim);
s.persist(melb);
s.persist(geel);
bob.getManagerBySite().put(melb, tom);
bob.getManagerBySite().put(geel, jim);
tim.getManagerBySite().put(melb, tom);
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
tom = (Employee) s.get(Employee.class, "Tom");
assertFalse( Hibernate.isInitialized(tom.getUnderlings()) );
assertEquals( tom.getUnderlings().size(), 2 );
bob = (Employee) s.get(Employee.class, "Bob");
assertFalse( Hibernate.isInitialized(bob.getManagerBySite()) );
assertTrue( tom.getUnderlings().contains(bob) );
melb = (Site) s.get(Site.class, "Melbourne");
assertSame( bob.getManagerBySite().get(melb), tom );
assertTrue( melb.getEmployees().contains(bob) );
assertTrue( melb.getManagers().contains(tom) );
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
List l = s.createQuery("from Employee e join e.managerBySite m where m.name='Bob'").list();
assertEquals( l.size(), 0 );
l = s.createQuery("from Employee e join e.managerBySite m where m.name='Tom'").list();
assertEquals( l.size(), 2 );
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
l = s.createQuery("from Employee e left join fetch e.managerBySite").list();
assertEquals( l.size(), 5 );
Set set = new HashSet(l);
assertEquals( set.size(), 4 );
Iterator iter = set.iterator();
int total=0;
while ( iter.hasNext() ) {
Map map = ( (Employee) iter.next() ).getManagerBySite();
assertTrue( Hibernate.isInitialized(map) );
total += map.size();
}
assertTrue(total==3);
l = s.createQuery("from Employee e left join e.managerBySite m left join m.managerBySite m2").list();
// clean up...
l = s.createQuery("from Employee e left join fetch e.managerBySite").list();
Iterator itr = l.iterator();
while ( itr.hasNext() ) {
Employee emp = ( Employee ) itr.next();
emp.setManagerBySite( new HashMap() );
s.delete( emp );
}
((org.hibernate.classic.Session)s).delete("from Site");
t.commit();
s.close();
