Java Code Examples for org.hibernate.classic.Session#find()

public void testListIdentifiers() throws Exception {
	Session s = openSession();
	Transaction txn = s.beginTransaction();
	Fum fum = new Fum( fumKey("fum") );
	fum.setFum("fo fee fi");
	s.save(fum);
	fum = new Fum( fumKey("fi") );
	fum.setFum("fee fi fo");
	s.save(fum);
	List list = s.find("select fum.id from Fum as fum where not fum.fum='FRIEND'");
	assertTrue( "list identifiers", list.size()==2);
	Iterator iter = s.iterate("select fum.id from Fum fum where not fum.fum='FRIEND'");
	int i=0;
	while ( iter.hasNext() ) {
		assertTrue( "iterate identifiers",  iter.next() instanceof FumCompositeID);
		i++;
	}
	assertTrue(i==2);

	s.delete( s.load(Fum.class, (Serializable) list.get(0) ) );
	s.delete( s.load(Fum.class, (Serializable) list.get(1) ) );
	txn.commit();
	s.close();
}
 

public void testQueryOneToOne() throws Exception {
	Session s = openSession();
	Transaction t = s.beginTransaction();
	Serializable id = s.save( new Parent() );
	assertTrue( s.find("from Parent p left join fetch p.child").size()==1 );
	t.commit();
	s.close();

	s = openSession();
	t = s.beginTransaction();
	Parent p = (Parent) s.createQuery("from Parent p left join fetch p.child").uniqueResult();
	assertTrue( p.getChild()==null );
	s.find("from Parent p join p.child c where c.x > 0");
	s.find("from Child c join c.parent p where p.x > 0");
	t.commit();
	s.close();

	s = openSession();
	t = s.beginTransaction();
	s.delete( s.get(Parent.class, id) );
	t.commit();
	s.close();
}
 

public void testFetchList() throws Exception {
	Session s = openSession();
	Baz baz = new Baz();
	s.save(baz);
	Foo foo = new Foo();
	s.save(foo);
	Foo foo2 = new Foo();
	s.save(foo2);
	s.flush();
	List list = new ArrayList();
	for ( int i=0; i<5; i++ ) {
		Fee fee = new Fee();
		list.add(fee);
	}
	baz.setFees(list);
	list = s.find("from Foo foo, Baz baz left join fetch baz.fees");
	assertTrue( Hibernate.isInitialized( ( (Baz) ( (Object[]) list.get(0) )[1] ).getFees() ) );
	s.delete(foo);
	s.delete(foo2);
	s.delete(baz);
	s.flush();
	s.connection().commit();
	s.close();
}
 

public void testNoForeignKeyViolations() throws Exception {
	Session s = openSession();
	Glarch g1 = new Glarch();
	Glarch g2 = new Glarch();
	g1.setNext(g2);
	g2.setNext(g1);
	s.save(g1);
	s.save(g2);
	s.flush();
	s.connection().commit();
	s.close();
	s = openSession();
	List l = s.find("from Glarch g where g.next is not null");
	s.delete( l.get(0) );
	s.delete( l.get(1) );
	s.flush();
	s.connection().commit();
	s.close();
}
 

public void testFetchInitializedCollectionDupe() throws Exception {
	Session s = openSession();
	Baz baz = new Baz();
	Collection fooBag = new ArrayList();
	fooBag.add( new Foo() );
	fooBag.add( new Foo() );
	baz.setFooBag(fooBag);
	s.save(baz);
	s.flush();
	fooBag = baz.getFooBag();
	s.find("from Baz baz left join fetch baz.fooBag");
	assertTrue( Hibernate.isInitialized(fooBag) );
	assertTrue( fooBag==baz.getFooBag() );
	assertTrue( baz.getFooBag().size()==2 );
	s.connection().commit();
	s.close();

	s = openSession();
	baz = (Baz) s.load( Baz.class, baz.getCode() );
	Object bag = baz.getFooBag();
	assertFalse( Hibernate.isInitialized(bag) );
	s.find("from Baz baz left join fetch baz.fooBag");
	assertTrue( Hibernate.isInitialized(bag) );
	assertTrue( bag==baz.getFooBag() );
	assertTrue( baz.getFooBag().size()==2 );
	s.delete(baz);
	s.flush();
	s.connection().commit();
	s.close();
}
 

public void testSqlFunctionAsAlias() throws Exception {
	String functionName = locateAppropriateDialectFunctionNameForAliasTest();
	if (functionName == null) {
		log.info("Dialect does not list any no-arg functions");
		return;
	}

	log.info("Using function named [" + functionName + "] for 'function as alias' test");
	String query = "select " + functionName + " from Simple as " + functionName + " where " + functionName + ".id = 10";

	Session s = openSession();
	Transaction t = s.beginTransaction();
	Simple simple = new Simple();
	simple.setName("Simple 1");
	s.save( simple, new Long(10) );
	t.commit();
	s.close();

	s = openSession();
	t = s.beginTransaction();
	List result = s.find(query);
	assertTrue( result.size() == 1 );
	assertTrue(result.get(0) instanceof Simple);
	s.delete( result.get(0) );
	t.commit();
	s.close();
}
 

public void testCollectionQuery() throws Exception {
	Session s = openSession();
	Transaction t = s.beginTransaction();
	if ( !(getDialect() instanceof MySQLDialect) && !(getDialect() instanceof SAPDBDialect) && !(getDialect() instanceof MckoiDialect) ) {
		s.iterate("FROM Master m WHERE NOT EXISTS ( FROM m.details d WHERE NOT d.i=5 )");
		s.iterate("FROM Master m WHERE NOT 5 IN ( SELECT d.i FROM m.details AS d )");
	}
	s.iterate("SELECT m FROM Master m JOIN m.details d WHERE d.i=5");
	s.find("SELECT m FROM Master m JOIN m.details d WHERE d.i=5");
	s.find("SELECT m.id FROM Master AS m JOIN m.details AS d WHERE d.i=5");
	t.commit();
	s.close();
}
 

public void testCallback() throws Exception {
	Session s = openSession();
	Qux q = new Qux("0");
	s.save(q);
	q.setChild( new Qux("1") );
	s.save( q.getChild() );
	Qux q2 = new Qux("2");
	q2.setChild( q.getChild() );
	Qux q3 = new Qux("3");
	q.getChild().setChild(q3);
	s.save(q3);
	Qux q4 = new Qux("4");
	q4.setChild(q3);
	s.save(q4);
	s.save(q2);
	s.flush();
	s.connection().commit();
	s.close();
	s = openSession();
	List l = s.find("from Qux");
	assertTrue( "", l.size()==5);
	s.delete( l.get(0) );
	s.delete( l.get(1) );
	s.delete( l.get(2) );
	s.delete( l.get(3) );
	s.delete( l.get(4) );
	s.flush();
	s.connection().commit();
	s.close();
}
 

public void testSqlFunctionAsAlias() throws Exception {
	String functionName = locateAppropriateDialectFunctionNameForAliasTest();
	if (functionName == null) {
		log.info("Dialect does not list any no-arg functions");
		return;
	}

	log.info("Using function named [" + functionName + "] for 'function as alias' test");
	String query = "select " + functionName + " from Simple as " + functionName + " where " + functionName + ".id = 10";

	Session s = openSession();
	Transaction t = s.beginTransaction();
	Simple simple = new Simple();
	simple.setName("Simple 1");
	s.save( simple, new Long(10) );
	t.commit();
	s.close();

	s = openSession();
	t = s.beginTransaction();
	List result = s.find(query);
	assertTrue( result.size() == 1 );
	assertTrue(result.get(0) instanceof Simple);
	s.delete( result.get(0) );
	t.commit();
	s.close();
}
 

public void testNotNullDiscriminator() throws Exception {
	Session s = openSession();
	Transaction t = s.beginTransaction();
	Up up = new Up();
	up.setId1("foo");
	up.setId2(123l);
	Down down = new Down();
	down.setId1("foo");
	down.setId2(321l);
	down.setValue(12312312l);
	s.save(up);
	s.save(down);
	t.commit();
	s.close();

	s = openSession();
	t = s.beginTransaction();
	List list = s.find("from Up up order by up.id2 asc");
	assertTrue( list.size()==2 );
	assertFalse( list.get(0) instanceof Down );
	assertTrue( list.get(1) instanceof Down );
	list = s.find("from Down down");
	assertTrue( list.size()==1 );
	assertTrue( list.get(0) instanceof Down );
	//list = s.find("from Up down where down.class = Down");
	assertTrue( list.size()==1 );
	assertTrue( list.get(0) instanceof Down );
	s.delete("from Up up");
	t.commit();
	s.close();

}
 

public void testNarrow() throws Exception {
	Session s = openSession();
	s.find("from Po po, Lower low where low.mypo = po");
	s.find("from Po po join po.set as sm where sm.amount > 0");
	s.find("from Po po join po.top as low where low.foo = 'po'");
	s.connection().commit();
	s.close();
}
 

public void testKeyManyToOne() throws Exception {
	Session s = openSession();
	Inner sup = new Inner();
	InnerKey sid = new InnerKey();
	sup.setDudu("dudu");
	sid.setAkey("a");
	sid.setBkey("b");
	sup.setId(sid);
	Middle m = new Middle();
	MiddleKey mid = new MiddleKey();
	mid.setOne("one");
	mid.setTwo("two");
	mid.setSup(sup);
	m.setId(mid);
	m.setBla("bla");
	Outer d = new Outer();
	OuterKey did = new OuterKey();
	did.setMaster(m);
	did.setDetailId("detail");
	d.setId(did);
	d.setBubu("bubu");
	s.save(sup);
	s.save(m);
	s.save(d);
	s.flush();
	s.connection().commit();
	s.close();

	s = openSession();
	Inner in = (Inner) s.find("from Inner").get(0);
	assertTrue( in.getMiddles().size()==1 );
	s.flush();
	s.connection().commit();
	s.close();
	s = openSession();
	assertTrue( s.find("from Inner _inner join _inner.middles middle").size()==1 );
	s.flush();
	s.connection().commit();
	s.close();

	s = openSession();
	d = (Outer) s.load(Outer.class, did);
	assertTrue( d.getId().getMaster().getId().getSup().getDudu().equals("dudu") );
	s.delete(d);
	s.delete( d.getId().getMaster() );
	s.save( d.getId().getMaster() );
	s.save(d);
	s.flush();
	s.connection().commit();
	s.close();

	s = openSession();
	d = (Outer) s.find("from Outer o where o.id.detailId = ?", d.getId().getDetailId(), Hibernate.STRING ).get(0);
	s.find("from Outer o where o.id.master.id.sup.dudu is not null");
	s.find("from Outer o where o.id.master.id.sup.id.akey is not null");
	s.find("from Inner i where i.backOut.id.master.id.sup.id.akey = i.id.bkey");
	List l = s.find("select o.id.master.id.sup.dudu from Outer o where o.id.master.id.sup.dudu is not null");
	assertTrue(l.size()==1);
	l = s.find("select o.id.master.id.sup.id.akey from Outer o where o.id.master.id.sup.id.akey is not null");
	assertTrue(l.size()==1);
	s.find("select i.backOut.id.master.id.sup.id.akey from Inner i where i.backOut.id.master.id.sup.id.akey = i.id.bkey");
	s.find("from Outer o where o.id.master.bla = ''");
	s.find("from Outer o where o.id.master.id.one = ''");
	s.find("from Inner inn where inn.id.bkey is not null and inn.backOut.id.master.id.sup.id.akey > 'a'");
	s.find("from Outer as o left join o.id.master m left join m.id.sup where o.bubu is not null");
	s.find("from Outer as o left join o.id.master.id.sup s where o.bubu is not null");
	s.find("from Outer as o left join o.id.master m left join o.id.master.id.sup s where o.bubu is not null");
	s.delete(d);
	s.delete( d.getId().getMaster() );
	s.delete( d.getId().getMaster().getId().getSup() );
	s.flush();
	s.connection().commit();
	s.close();
}
 

public void testCRUD() throws HibernateException, SQLException {

		if ( getDialect() instanceof HSQLDialect ) return;
		if ( getDialect() instanceof MySQLDialect ) return;

		Person p = new Person();

		p.setName("Max");
		p.setLastName("Andersen");
		p.setNationalID("110974XYZ�");
		p.setAddress("P. P. Street 8");

		Session s = openSession();

		s.save(p);
		s.flush();

		s.connection().commit();
		s.close();

		getSessions().evict(Person.class);
		s = openSession();

		Person p2 = (Person) s.get(Person.class, p.getId());
		assertNotSame(p, p2);
		assertEquals(p2.getId(),p.getId());
		assertEquals(p2.getLastName(),p.getLastName());
		s.flush();

		List list = s.find("select p from Party as p");
		assertTrue(list.size() == 1);

		s.connection().commit();
		s.close();

		s = openSession();

		list = s.find("select p from Person as p where p.address = 'L�rkev�nget 1'");
		assertTrue(list.size() == 0);
		p.setAddress("L�rkev�nget 1");
		s.update(p);
		list = s.find("select p from Person as p where p.address = 'L�rkev�nget 1'");
		assertTrue(list.size() == 1);
		list = s.find("select p from Party as p where p.address = 'P. P. Street 8'");
		assertTrue(list.size() == 0);

		s.delete(p);
		list = s.find("select p from Person as p");
		assertTrue(list.size() == 0);

		s.connection().commit();
		s.close();


	}
 

public void testSubclassCollection() throws Exception {
	//if ( getDialect() instanceof HSQLDialect ) return; //TODO: figure out why!?
	Session s = openSession();
	SubMulti sm = new SubMulti();
	SubMulti sm1 = new SubMulti();
	SubMulti sm2 = new SubMulti();
	ArrayList list = new ArrayList();
	ArrayList anotherList = new ArrayList();
	sm.setChildren(list);
	sm.setMoreChildren(anotherList);
	sm.setExtraProp("foo");
	list.add(sm1);
	list.add(sm2);
	anotherList.add(sm1);
	anotherList.add(sm2);
	sm1.setParent(sm);
	sm2.setParent(sm);
	Serializable id = s.save(sm);
	s.save(sm1);
	s.save(sm2);
	s.flush();
	s.connection().commit();
	s.close();

	getSessions().evict(SubMulti.class);

	s = openSession();
	s.connection().createStatement().executeQuery(
		"select * from leafsubsubclass sm, nonleafsubclass m, rootclass s where sm.sid=m.sid and sm.sid=s.id1_ and sm.sid=1"
	).next();
	assertTrue( s.find("select s from SubMulti as sm join sm.children as s where s.amount>-1 and s.name is null").size()==2 );
	s.find("select c from SubMulti sm join sm.children c");
	assertTrue( s.find("select elements(sm.children) from SubMulti as sm").size()==2 );
	assertTrue( s.find("select distinct sm from SubMulti as sm join sm.children as s where s.amount>-1 and s.name is null").size()==1 );
	sm = (SubMulti) s.load(SubMulti.class, id);
	assertTrue( sm.getChildren().size()==2 );
	assertEquals(
		s.filter( sm.getMoreChildren(), "select count(*) where this.amount>-1 and this.name is null" ).iterator().next(),
		new Long(2)
	);
	assertEquals( "FOO", sm.getDerived() );
	assertSame(
		s.iterate("select distinct s from SubMulti s where s.moreChildren[1].amount < 1.0").next(),
		sm
	);
	assertTrue( sm.getMoreChildren().size()==2 );
	s.delete(sm);
	Iterator iter = sm.getChildren().iterator();
	while ( iter.hasNext() ) s.delete( iter.next() );
	s.flush();
	s.connection().commit();
	s.close();

}
 

public void testOneToOne() throws Exception {
	Session s = openSession();
	Transaction t = s.beginTransaction();
	A a = new A();
	E d1 = new E();
	C1 c = new C1();
	E d2 = new E();
	a.setForward(d1);
	d1.setReverse(a);
	c.setForward(d2);
	d2.setReverse(c);
	Serializable aid = s.save(a);
	Serializable d2id = s.save(d2);
	t.commit();
	s.close();

	s = openSession();
	t = s.beginTransaction();
	List l = s.find( "from E e, A a where e.reverse = a.forward and a = ?", a, Hibernate.entity(A.class) );
	assertTrue( l.size()==1 );
	l = s.find( "from E e join fetch e.reverse" );
	assertTrue( l.size()==2 );
	t.commit();
	s.close();

	s = openSession();
	t = s.beginTransaction();
	l = s.find( "from E e" );
	assertTrue( l.size()==2 );
	E e = (E) l.get(0);
	assertTrue( e==e.getReverse().getForward() );
	e = (E) l.get(1);
	assertTrue( e==e.getReverse().getForward() );
	t.commit();
	s.close();

	s = openSession();
	t = s.beginTransaction();
	a = (A) s.load(A.class, aid);
	d2 = (E) s.load(E.class, d2id);
	assertTrue( a==a.getForward().getReverse() );
	assertTrue( d2==d2.getReverse().getForward() );
	s.delete(a);
	s.delete( a.getForward() );
	s.delete(d2);
	s.delete( d2.getReverse() );
	t.commit();

	s = openSession();
	t = s.beginTransaction();
	l = s.find( "from E e" );
	assertTrue( l.size()==0 );
	t.commit();
	s.close();
}
 

public void testFind() throws Exception {
	Session s = openSession();
	Transaction txn = s.beginTransaction();

	Bar bar = new Bar();
	s.save(bar);
	bar.setBarString("bar bar");
	bar.setString("xxx");
	Foo foo = new Foo();
	s.save(foo);
	foo.setString("foo bar");
	s.save( new Foo() );
	s.save( new Bar() );
	List list1 = s.find("select foo from Foo foo where foo.string='foo bar'");
	assertTrue( "find size", list1.size()==1 );
	assertTrue( "find ==", list1.get(0)==foo );
	List list2 = s.find("from Foo foo order by foo.string, foo.date");
	assertTrue( "find size", list2.size()==4 );

	list1 = s.find("from Foo foo where foo.class='B'");
	assertTrue( "class special property", list1.size()==2);
	list1 = s.find("from Foo foo where foo.class=Bar");
	assertTrue( "class special property", list1.size()==2);
	list1 = s.find("from Foo foo where foo.class=Bar");
	list2 = s.find("select bar from Bar bar, Foo foo where bar.string = foo.string and not bar=foo");
	assertTrue( "class special property", list1.size()==2);
	assertTrue( "select from a subclass", list2.size()==1);
	Trivial t = new Trivial();
	s.save(t);
	txn.commit();
	s.close();

	s = openSession();
	txn = s.beginTransaction();
	list1 = s.find("from Foo foo where foo.string='foo bar'");
	assertTrue( "find size", list1.size()==1 );
	// There is an interbase bug that causes null integers to return as 0, also numeric precision is <= 15
	assertTrue( "find equals", ( (Foo) list1.get(0) ).equalsFoo(foo) );
	list2 = s.find("select foo from Foo foo");
	assertTrue( "find size", list2.size()==5 );
	List list3 = s.find("from Bar bar where bar.barString='bar bar'");
	assertTrue( "find size", list3.size()==1 );
	assertTrue( "find same instance", list2.contains( list1.get(0) ) && list2.contains( list2.get(0) ) );
	assertTrue( s.find("from Trivial").size()==1 );
	s.delete("from Trivial");

	list2 = s.find("from Foo foo where foo.date = ?", new java.sql.Date(123), Hibernate.DATE);
	assertTrue ( "find by date", list2.size()==4 );
	Iterator iter = list2.iterator();
	while ( iter.hasNext() ) {
		s.delete( iter.next() );
	}
	list2 = s.find("from Foo foo");
	assertTrue( "find deleted", list2.size()==0);
	txn.commit();
	s.close();
}
 

public void ntestAssociationId() throws Exception {
	Session s = openSession();
	Transaction t = s.beginTransaction();
	Bar bar = new Bar();
	String id = (String) s.save(bar);
	MoreStuff more = new MoreStuff();
	more.setName("More Stuff");
	more.setIntId(12);
	more.setStringId("id");
	Stuff stuf = new Stuff();
	stuf.setMoreStuff(more);
	more.setStuffs( new ArrayList() );
	more.getStuffs().add(stuf);
	stuf.setFoo(bar);
	stuf.setId(1234);
	stuf.setProperty( TimeZone.getDefault() );
	s.save(more);
	t.commit();
	s.close();

	s = openSession();
	t = s.beginTransaction();
	assertTrue( s.find(
		"from Stuff as s where s.foo.id = ? and s.id.id = ? and s.moreStuff.id.intId = ? and s.moreStuff.id.stringId = ?",
		new Object[] { bar, new Long(1234), new Integer(12), "id" },
		new Type[] { Hibernate.entity(Foo.class), Hibernate.LONG, Hibernate.INTEGER, Hibernate.STRING }
	).size()==1 );
	assertTrue( s.find(
		"from Stuff as s where s.foo.id = ? and s.id.id = ? and s.moreStuff.name = ?",
		new Object[] { bar, new Long(1234), "More Stuff" },
		new Type[] { Hibernate.entity(Foo.class), Hibernate.LONG, Hibernate.STRING }
	).size()==1 );
	s.find("from Stuff as s where s.foo.string is not null");
	assertTrue(
		s.find("from Stuff as s where s.foo > '0' order by s.foo").size()==1
	);
	//s.createCriteria(Stuff.class).createCriteria("id.foo").add( Expression.isNull("foo") ).list();
	t.commit();
	s.close();

	s = openSession();
	t = s.beginTransaction();
	FooProxy foo = (FooProxy) s.load(Foo.class, id);
	s.load(more, more);
	t.commit();
	s.close();

	s = openSession();
	t = s.beginTransaction();
	Stuff stuff = new Stuff();
	stuff.setFoo(foo);
	stuff.setId(1234);
	stuff.setMoreStuff(more);
	s.load(stuff, stuff);
	assertTrue( stuff.getProperty().equals( TimeZone.getDefault() ) );
	assertTrue( stuff.getMoreStuff().getName().equals("More Stuff") );
	s.delete("from MoreStuff");
	s.delete("from Foo foo");
	t.commit();
	s.close();
}
 

public void testNamedParams() throws Exception {
	Bar bar = new Bar();
	Bar bar2 = new Bar();
	bar.setName("Bar");
	bar2.setName("Bar Two");
	bar.setX(10);
	bar2.setX(1000);Baz baz = new Baz();
	baz.setCascadingBars( new HashSet() );
	baz.getCascadingBars().add(bar);
	bar.setBaz(baz);

	Session s = openSession();
	Transaction txn = s.beginTransaction();
	s.save(baz);
	s.save(bar2);

	List list = s.find("from Bar bar left join bar.baz baz left join baz.cascadingBars b where bar.name like 'Bar %'");
	Object row = list.iterator().next();
	assertTrue( row instanceof Object[] && ( (Object[]) row ).length==3 );

	Query q = s.createQuery("select bar, b from Bar bar left join bar.baz baz left join baz.cascadingBars b where bar.name like 'Bar%'");
	list = q.list();
	if ( !(getDialect() instanceof SAPDBDialect) ) assertTrue( list.size()==2 );

	q = s.createQuery("select bar, b from Bar bar left join bar.baz baz left join baz.cascadingBars b where ( bar.name in (:nameList) or bar.name in (:nameList) ) and bar.string = :stringVal");
	HashSet nameList = new HashSet();
	nameList.add("bar");
	nameList.add("Bar");
	nameList.add("Bar Two");
	q.setParameterList("nameList", nameList);
	q.setParameter("stringVal", "a string");
	list = q.list();
	if ( !(getDialect() instanceof SAPDBDialect) ) assertTrue( list.size()==2 );

	try {
		q.setParameterList("nameList", (Collection)null);
		fail("Should throw an queryexception when passing a null!");
	} catch (QueryException qe) {
		//should happen
	}


	if (dialectSupportsEmptyInList("HQL 'x in (:name)'  with EMPTY_LIST.")) { 
			q.setParameterList("nameList", Collections.EMPTY_LIST);
		list = q.list();
		assertTrue( list.size()==0 );
	}

	q = s.createQuery("select bar, b from Bar bar inner join bar.baz baz inner join baz.cascadingBars b where bar.name like 'Bar%'");
	Object result = q.uniqueResult();
	assertTrue( result!=null );
	q = s.createQuery("select bar, b from Bar bar left join bar.baz baz left join baz.cascadingBars b where bar.name like :name and b.name like :name");
	q.setString("name", "Bar%");
	list = q.list();
	assertTrue( list.size()==1 );


	// This test added for issue HB-297 - there is an named parameter in the Order By clause
	q = s.createQuery("select bar from Bar bar order by ((bar.x - :valueX)*(bar.x - :valueX))");
	q.setInteger("valueX", bar.getX()+1);
	list = q.list();
	assertTrue( ((Bar)list.get(0)).getX() == bar.getX());
	q.setInteger("valueX", bar2.getX()+1);
	list = q.list();
	assertTrue( ((Bar)list.get(0)).getX() == bar2.getX());

	s.delete(baz);
	s.delete(bar2);
	txn.commit();
	s.close();
}
 

public void testQueryLockMode() throws Exception {

		Session s = openSession();
		Transaction tx = s.beginTransaction();
		Bar bar = new Bar();
		s.save(bar);
		s.flush();
		bar.setString("changed");
		Baz baz = new Baz();
		baz.setFoo(bar);
		s.save(baz);
		Query q = s.createQuery("from Foo foo, Bar bar");
		if ( !(getDialect() instanceof DB2Dialect) ) {
			q.setLockMode("bar", LockMode.UPGRADE);
		}
		Object[] result = (Object[]) q.uniqueResult();
		Object b = result[0];
		assertTrue( s.getCurrentLockMode(b)==LockMode.WRITE && s.getCurrentLockMode( result[1] )==LockMode.WRITE );
		tx.commit();
		s.disconnect();

		s.reconnect();
		tx = s.beginTransaction();
		assertTrue( s.getCurrentLockMode(b)==LockMode.NONE );
		s.find("from Foo foo");
		assertTrue( s.getCurrentLockMode(b)==LockMode.NONE );
		q = s.createQuery("from Foo foo");
		q.setLockMode("foo", LockMode.READ);
		q.list();
		assertTrue( s.getCurrentLockMode(b)==LockMode.READ);
		s.evict(baz);
		tx.commit();
		s.disconnect();
		
		s.reconnect();
		tx = s.beginTransaction();
		assertTrue( s.getCurrentLockMode(b)==LockMode.NONE );
		s.delete( s.load( Baz.class, baz.getCode() ) );
		assertTrue( s.getCurrentLockMode(b)==LockMode.NONE );
		tx.commit();
		s.close();

		s = openSession();
		tx = s.beginTransaction();
		q = s.createQuery("from Foo foo, Bar bar, Bar bar2");
		if ( !(getDialect() instanceof DB2Dialect) ) {
			q.setLockMode("bar", LockMode.UPGRADE);
		}
		q.setLockMode("bar2", LockMode.READ);
		result = (Object[]) q.list().get(0);
		if ( !(getDialect() instanceof DB2Dialect) ) {
			assertTrue( s.getCurrentLockMode( result[0] )==LockMode.UPGRADE && s.getCurrentLockMode( result[1] )==LockMode.UPGRADE );
		}
		s.delete( result[0] );
		tx.commit();
		s.close();
	}
 

public void testDeleteOwner() throws Exception {
	Session s = openSession();
	Qux q = new Qux();
	s.save(q);
	Fum f1 = new Fum( fumKey("f1") );
	Fum f2 = new Fum( fumKey("f2") );
	Set set = new HashSet();
	set.add(f1);
	set.add(f2);
	List list = new LinkedList();
	list.add(f1);
	list.add(f2);
	f1.setFum("f1");
	f2.setFum("f2");
	q.setFums(set);
	q.setMoreFums(list);
	s.save(f1);
	s.save(f2);
	s.flush();
	s.connection().commit();
	s.close();

	s = openSession();
	q = (Qux) s.load( Qux.class, q.getKey(), LockMode.UPGRADE );
	s.lock( q, LockMode.UPGRADE );
	s.delete(q);
	s.flush();
	s.connection().commit();
	s.close();

	s = openSession();
	list = s.find("from Fum fum where not fum.fum='FRIEND'");
	assertTrue( "deleted owner", list.size()==2 );
	s.lock( list.get(0), LockMode.UPGRADE );
	s.lock( list.get(1), LockMode.UPGRADE );
	Iterator iter = list.iterator();
	while ( iter.hasNext() ) {
		s.delete( iter.next() );
	}
	s.flush();
	s.connection().commit();
	s.close();
}