Person p = new Person();
p.name = "Gavin";
Address a = new Address();
a.entityName = "Gavin";
a.zip = "3181";
a.state = "VIC";
a.street = "Karbarook Ave";
p.address = a;
Session s = openSession();
Transaction t = s.beginTransaction();
s.persist(p);
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
EntityStatistics addressStats = getSessions().getStatistics().getEntityStatistics( Address.class.getName() );
EntityStatistics mailingAddressStats = getSessions().getStatistics().getEntityStatistics("MailingAddress");
p = (Person) s.createQuery("from Person p join fetch p.address left join fetch p.mailingAddress").uniqueResult();
assertNotNull(p.address); assertNull(p.mailingAddress);
s.clear();
assertEquals( addressStats.getFetchCount(), 0 );
assertEquals( mailingAddressStats.getFetchCount(), 0 );
p = (Person) s.createQuery("from Person p join fetch p.address").uniqueResult();
assertNotNull(p.address); assertNull(p.mailingAddress);
s.clear();
assertEquals( addressStats.getFetchCount(), 0 );
assertEquals( mailingAddressStats.getFetchCount(), 1 );
p = (Person) s.createQuery("from Person").uniqueResult();
assertNotNull(p.address); assertNull(p.mailingAddress);
s.clear();
assertEquals( addressStats.getFetchCount(), 1 );
assertEquals( mailingAddressStats.getFetchCount(), 2 );
p = (Person) s.createQuery("from Entity").uniqueResult();
assertNotNull(p.address); assertNull(p.mailingAddress);
s.clear();
assertEquals( addressStats.getFetchCount(), 2 );
assertEquals( mailingAddressStats.getFetchCount(), 3 );
//note that in here join fetch is used for the nullable
//one-to-one, due to a very special case of default
p = (Person) s.get(Person.class, "Gavin");
assertNotNull(p.address); assertNull(p.mailingAddress);
s.clear();
assertEquals( addressStats.getFetchCount(), 2 );
assertEquals( mailingAddressStats.getFetchCount(), 3 );
p = (Person) s.get(Entity.class, "Gavin");
assertNotNull(p.address); assertNull(p.mailingAddress);
s.clear();
assertEquals( addressStats.getFetchCount(), 2 );
assertEquals( mailingAddressStats.getFetchCount(), 3 );
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
Org org = new Org();
org.name = "IFA";
Address a2 = new Address();
a2.entityName = "IFA";
a2.zip = "3181";
a2.state = "VIC";
a2.street = "Orrong Rd";
org.addresses.add(a2);
s.persist(org);
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
org = (Org) s.get(Entity.class, "IFA");
s.clear();
List list = s.createQuery("from Entity e order by e.name").list();
p = (Person) list.get(0);
assertNotNull(p.address); assertNull(p.mailingAddress);
org = (Org) list.get(1);
assertEquals( org.addresses.size(), 1 );
s.clear();
list = s.createQuery("from Entity e left join fetch e.address left join fetch e.mailingAddress order by e.name").list();
p = (Person) list.get(0);
org = (Org) list.get(1);
assertNotNull(p.address); assertNull(p.mailingAddress);
assertEquals( org.addresses.size(), 1 );
s.delete(p);
s.delete(org);
t.commit();
s.close();
