@Test
@SuppressWarnings({"unchecked"})
@SkipForDialect(
value = {PostgreSQL81Dialect.class},
comment = "doesn't like boolean=1")
public void testLazy() {
Session s = openSession();
Transaction t = s.beginTransaction();
Auction a = new Auction();
a.setDescription("an auction for something");
a.setEnd(new Date());
Bid b = new Bid();
b.setAmount(new BigDecimal(123.34).setScale(19, BigDecimal.ROUND_DOWN));
b.setSuccessful(true);
b.setDatetime(new Date());
b.setItem(a);
a.getBids().add(b);
a.setSuccessfulBid(b);
s.persist(b);
t.commit();
s.close();
Long aid = a.getId();
Long bid = b.getId();
s = openSession();
t = s.beginTransaction();
b = (Bid) s.load(Bid.class, bid);
assertFalse(Hibernate.isInitialized(b));
a = (Auction) s.get(Auction.class, aid);
assertFalse(Hibernate.isInitialized(a.getBids()));
assertTrue(Hibernate.isInitialized(a.getSuccessfulBid()));
assertSame(a.getBids().iterator().next(), b);
assertSame(b, a.getSuccessfulBid());
assertTrue(Hibernate.isInitialized(b));
assertTrue(b.isSuccessful());
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
b = (Bid) s.load(Bid.class, bid);
assertFalse(Hibernate.isInitialized(b));
a = (Auction) s.createQuery("from Auction a left join fetch a.bids").uniqueResult();
assertTrue(Hibernate.isInitialized(b));
assertTrue(Hibernate.isInitialized(a.getBids()));
assertSame(b, a.getSuccessfulBid());
assertSame(a.getBids().iterator().next(), b);
assertTrue(b.isSuccessful());
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
b = (Bid) s.load(Bid.class, bid);
a = (Auction) s.load(Auction.class, aid);
assertFalse(Hibernate.isInitialized(b));
assertFalse(Hibernate.isInitialized(a));
s.createQuery("from Auction a left join fetch a.successfulBid").list();
assertTrue(Hibernate.isInitialized(b));
assertTrue(Hibernate.isInitialized(a));
assertSame(b, a.getSuccessfulBid());
assertFalse(Hibernate.isInitialized(a.getBids()));
assertSame(a.getBids().iterator().next(), b);
assertTrue(b.isSuccessful());
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
b = (Bid) s.load(Bid.class, bid);
a = (Auction) s.load(Auction.class, aid);
assertFalse(Hibernate.isInitialized(b));
assertFalse(Hibernate.isInitialized(a));
assertSame(s.get(Bid.class, bid), b);
assertTrue(Hibernate.isInitialized(b));
assertSame(s.get(Auction.class, aid), a);
assertTrue(Hibernate.isInitialized(a));
assertSame(b, a.getSuccessfulBid());
assertFalse(Hibernate.isInitialized(a.getBids()));
assertSame(a.getBids().iterator().next(), b);
assertTrue(b.isSuccessful());
t.commit();
s.close();
}
