parentchildtest.java

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//$Id: ParentChildTest.java 9888 2006-05-05 01:04:16Z steve.ebersole@jboss.com $
package org.hibernate.test.legacy;

import java.io.Serializable;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import junit.framework.Test;
import junit.framework.TestSuite;
import junit.textui.TestRunner;

import org.hibernate.Criteria;
import org.hibernate.FetchMode;
import org.hibernate.Hibernate;
import org.hibernate.HibernateException;
import org.hibernate.LockMode;
import org.hibernate.ObjectNotFoundException;
import org.hibernate.ReplicationMode;
import org.hibernate.Transaction;
import org.hibernate.classic.Session;
import org.hibernate.criterion.Expression;
import org.hibernate.dialect.DB2Dialect;
import org.hibernate.dialect.HSQLDialect;
import org.hibernate.dialect.MySQLDialect;


public class ParentChildTest extends LegacyTestCase {

	public ParentChildTest(String x) {
		super(x);
	}

	public void testReplicate() throws Exception {
		Session s = openSession();
		Container baz = new Container();
		Contained f = new Contained();
		List list = new ArrayList();
		list.add(baz);
		f.setBag(list);
		List list2 = new ArrayList();
		list2.add(f);
		baz.setBag(list2);
		s.save(f);
		s.save(baz);
		s.flush();
		s.connection().commit();
		s.close();
		s = openSession();
		s.replicate(baz, ReplicationMode.OVERWRITE);
		s.flush();
		s.connection().commit();
		s.close();
		s = openSession();
		s.replicate(baz, ReplicationMode.IGNORE);
		s.flush();
		s.connection().commit();
		s.close();
		s = openSession();
		s.delete(baz);
		s.delete(f);
		s.flush();
		s.connection().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 testProxyReuse() throws Exception {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		FooProxy foo = new Foo();
		FooProxy foo2 = new Foo();
		Serializable id = s.save(foo);
		Serializable id2 = s.save(foo2);
		foo2.setInt(1234567);
		foo.setInt(1234);
		t.commit();
		s.close();

		s = openSession();
		t = s.beginTransaction();
		foo = (FooProxy) s.load(Foo.class, id);
		foo2 = (FooProxy) s.load(Foo.class, id2);
		assertFalse( Hibernate.isInitialized(foo) );
		Hibernate.initialize(foo2);
		Hibernate.initialize(foo);
		assertTrue( foo.getComponent().getImportantDates().length==4 );
		assertTrue( foo2.getComponent().getImportantDates().length==4 );
		t.commit();
		s.close();

		s = openSession();
		t = s.beginTransaction();
		foo.setFloat( new Float(1.2f) );
		foo2.setFloat( new Float(1.3f) );
		foo2.getDependent().setKey(null);
		foo2.getComponent().getSubcomponent().getFee().setKey(null);
		assertFalse( foo2.getKey().equals(id) );
		s.save(foo, "xyzid");
		s.update(foo2, id); //intentionally id, not id2!
		assertEquals( foo2.getKey(), id );
		assertTrue( foo2.getInt()==1234567 );
		assertEquals( foo.getKey(), "xyzid" );
		t.commit();
		s.close();
		
		s = openSession();
		t = s.beginTransaction();
		foo = (FooProxy) s.load(Foo.class, id);
		assertTrue( foo.getInt()==1234567 );
		assertTrue( foo.getComponent().getImportantDates().length==4 );
		String feekey = foo.getDependent().getKey();
		String fookey = foo.getKey();
		s.delete(foo);
		s.delete( s.get(Foo.class, id2) );
		s.delete( s.get(Foo.class, "xyzid") );
		assertTrue( s.delete("from java.lang.Object")==3 );
		t.commit();
		s.close();
		
		//to account for new id rollback shit
		foo.setKey(fookey);
		foo.getDependent().setKey(feekey);
		foo.getComponent().setGlarch(null);
		foo.getComponent().setSubcomponent(null);
		
		s = openSession();
		t = s.beginTransaction();
		//foo.getComponent().setGlarch(null); //no id property!
		s.replicate(foo, ReplicationMode.OVERWRITE);
		t.commit();
		s.close();

		s = openSession();
		t = s.beginTransaction();
		Foo refoo = (Foo) s.get(Foo.class, id);
		assertEquals( feekey, refoo.getDependent().getKey() );
		s.delete(refoo);
		t.commit();
		s.close();
	}

	public void testComplexCriteria() throws Exception {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		Baz baz = new Baz();
		s.save(baz);
		baz.setDefaults();
		Map topGlarchez = new HashMap();
		baz.setTopGlarchez(topGlarchez);
		Glarch g1 = new Glarch();
		g1.setName("g1");
		s.save(g1);
		Glarch g2 = new Glarch();
		g2.setName("g2");
		s.save(g2);
		g1.setProxyArray( new GlarchProxy[] {g2} );
		topGlarchez.put( new Character('1'),g1 );
		topGlarchez.put( new Character('2'), g2);
		Foo foo1 = new Foo();
		Foo foo2 = new Foo();
		s.save(foo1);
		s.save(foo2);
		baz.getFooSet().add(foo1);
		baz.getFooSet().add(foo2);
		baz.setFooArray( new FooProxy[] { foo1 } );

		LockMode lockMode = (getDialect() instanceof DB2Dialect) ? LockMode.READ : LockMode.UPGRADE;

		Criteria crit = s.createCriteria(Baz.class);
		crit.createCriteria("topGlarchez")
			.add( Expression.isNotNull("name") )
			.createCriteria("proxyArray")
				.add( Expression.eqProperty("name", "name") )
				.add( Expression.eq("name", "g2") )
				.add( Expression.gt("x", new Integer(-666) ) );
		crit.createCriteria("fooSet")
			.add( Expression.isNull("null") )
			.add( Expression.eq("string", "a string") )
			.add( Expression.lt("integer", new Integer(-665) ) );
		crit.createCriteria("fooArray")
			.add( Expression.eq("string", "a string") )
			.setLockMode(lockMode);

		List list = crit.list();
		assertTrue( list.size()==2 );
		
		s.createCriteria(Glarch.class).setLockMode(LockMode.UPGRADE).list();
		s.createCriteria(Glarch.class).setLockMode(Criteria.ROOT_ALIAS, LockMode.UPGRADE).list();
		
		g2.setName(null);
		t.commit();
		s.close();
		
		s = openSession();
		t = s.beginTransaction();
		
		list = s.createCriteria(Baz.class).add( Expression.isEmpty("fooSet") ).list();
		assertEquals( list.size(), 0 );

		list = s.createCriteria(Baz.class).add( Expression.isNotEmpty("fooSet") ).list();
		assertEquals( new HashSet(list).size(), 1 );

		list = s.createCriteria(Baz.class).add( Expression.sizeEq("fooSet", 2) ).list();
		assertEquals( new HashSet(list).size(), 1 );
		
		t.commit();
		s.close();

		s = openSession();
		t = s.beginTransaction();

		crit = s.createCriteria(Baz.class)
			.setLockMode(lockMode);
		crit.createCriteria("topGlarchez")
			.add( Expression.gt( "x", new Integer(-666) ) );
		crit.createCriteria("fooSet")
			.add( Expression.isNull("null") );
		list = crit.list();

		assertTrue( list.size()==4 );
		baz = (Baz) crit.uniqueResult();
		assertTrue( Hibernate.isInitialized(baz.getTopGlarchez()) ); //cos it is nonlazy
		assertTrue( !Hibernate.isInitialized(baz.getFooSet()) );

		/*list = s.createCriteria(Baz.class)
			.createCriteria("fooSet.foo.component.glarch")
				.add( Expression.eq("name", "xxx") )
			.add( Expression.eq("fooSet.foo.component.glarch.name", "xxx") )
			.list();
		assertTrue( list.size()==0 );*/
		list = s.createCriteria(Baz.class)
			.createCriteria("fooSet")
				.createCriteria("foo")
					.createCriteria("component.glarch")
						.add( Expression.eq("name", "xxx") )
			.list();
		assertTrue( list.size()==0 );

		list = s.createCriteria(Baz.class)
			.createAlias("fooSet", "foo")
			.createAlias("foo.foo", "foo2")
			.setLockMode("foo2", lockMode)
			.add( Expression.isNull("foo2.component.glarch") )
			.createCriteria("foo2.component.glarch")
				.add( Expression.eq("name", "xxx") )
			.list();
		assertTrue( list.size()==0 );

		t.commit();
		s.close();

		s = openSession();
		t = s.beginTransaction();

		crit = s.createCriteria(Baz.class);
		crit.createCriteria("topGlarchez")
			.add( Expression.isNotNull("name") );
		crit.createCriteria("fooSet")
			.add( Expression.isNull("null") );

		list = crit.list();
		assertTrue( list.size()==2 );
		baz = (Baz) crit.uniqueResult();
		assertTrue( Hibernate.isInitialized(baz.getTopGlarchez()) ); //cos it is nonlazy
		assertTrue( !Hibernate.isInitialized(baz.getFooSet()) );
		
		
		list = s.createCriteria(Child.class).setFetchMode("parent", FetchMode.JOIN).list();
		
		s.delete("from Glarch g");
		s.delete( s.get(Foo.class, foo1.getKey() ) );
		s.delete( s.get(Foo.class, foo2.getKey() ) );
		s.delete(baz);
		t.commit();
		s.close();
	}

	public void testClassWhere() throws Exception {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		Baz baz = new Baz();
		baz.setParts( new ArrayList() );
		Part p1 = new Part();
		p1.setDescription("xyz");
		Part p2 = new Part();
		p2.setDescription("abc");
		baz.getParts().add(p1);
		baz.getParts().add(p2);
		s.save(baz);
		t.commit();
		s.close();

		s = openSession();
		t = s.beginTransaction();
		assertTrue( s.createCriteria(Part.class).list().size()==1 ); //there is a where condition on Part mapping
		assertTrue( s.createCriteria(Part.class).add( Expression.eq( "id", p1.getId() ) ).list().size()==1 );
		assertTrue( s.createQuery("from Part").list().size()==1 );
		assertTrue( s.createQuery("from Baz baz join baz.parts").list().size()==2 );
		baz = (Baz) s.createCriteria(Baz.class).uniqueResult();
		assertTrue( s.createFilter( baz.getParts(), "" ).list().size()==2 );
		//assertTrue( baz.getParts().size()==1 );
		s.delete( s.get( Part.class, p1.getId() ));
		s.delete( s.get( Part.class, p2.getId() ));
		s.delete(baz);
		t.commit();
		s.close();
	}

	public void testClassWhereManyToMany() throws Exception {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		Baz baz = new Baz();
		baz.setMoreParts( new ArrayList() );
		Part p1 = new Part();
		p1.setDescription("xyz");
		Part p2 = new Part();
		p2.setDescription("abc");
		baz.getMoreParts().add(p1);
		baz.getMoreParts().add(p2);
		s.save(baz);
		t.commit();
		s.close();

		s = openSession();
		t = s.beginTransaction();
		assertTrue( s.createCriteria(Part.class).list().size()==1 ); //there is a where condition on Part mapping
		assertTrue( s.createCriteria(Part.class).add( Expression.eq( "id", p1.getId() ) ).list().size()==1 );
		assertTrue( s.createQuery("from Part").list().size()==1 );
		assertTrue( s.createQuery("from Baz baz join baz.moreParts").list().size()==2 );
		baz = (Baz) s.createCriteria(Baz.class).uniqueResult();
		assertTrue( s.createFilter( baz.getMoreParts(), "" ).list().size()==2 );
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