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Hibernate example source code file (AbstractEntityWithOneToManyTest.java)

This example Hibernate source code file (AbstractEntityWithOneToManyTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Hibernate tags/keywords

contract, contract, contractvariation, party, party, session, sessionfactoryimpl, suppresswarnings, suppresswarnings, test, test, transaction, unnecessaryboxing, unusedassignment

The Hibernate AbstractEntityWithOneToManyTest.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2010-2011, Red Hat Inc. or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.test.immutable.entitywithmutablecollection;
import org.hibernate.QueryException;
import org.hibernate.Session;
import org.hibernate.StaleObjectStateException;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import org.hibernate.cfg.Environment;
import org.hibernate.criterion.Projections;
import org.hibernate.criterion.Restrictions;
import org.hibernate.internal.SessionFactoryImpl;

import org.junit.Test;

import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

/**
 * @author Gail Badner
 */
@SuppressWarnings( {"UnusedDeclaration"})
public abstract class AbstractEntityWithOneToManyTest extends BaseCoreFunctionalTestCase {
	private boolean isContractPartiesInverse;
	private boolean isContractPartiesBidirectional;
	private boolean isContractVariationsBidirectional;
	private boolean isContractVersioned;
	public void configure(Configuration cfg) {
		cfg.setProperty( Environment.GENERATE_STATISTICS, "true");
		cfg.setProperty( Environment.STATEMENT_BATCH_SIZE, "0" );
	}

	protected boolean checkUpdateCountsAfterAddingExistingElement() {
		return true;
	}

	protected boolean checkUpdateCountsAfterRemovingElementWithoutDelete() {
		return true;
	}

	protected void prepareTest() throws Exception {
		super.prepareTest();
		isContractPartiesInverse = ( ( SessionFactoryImpl ) sessionFactory() ).getCollectionPersister( Contract.class.getName() + ".parties" ).isInverse();
		try {
			 ( ( SessionFactoryImpl ) sessionFactory() ).getEntityPersister( Party.class.getName() ).getPropertyType( "contract" );
			isContractPartiesBidirectional = true;
		}
		catch ( QueryException ex) {
			isContractPartiesBidirectional = false;
		}
		try {
			 ( ( SessionFactoryImpl ) sessionFactory() ).getEntityPersister( ContractVariation.class.getName() ).getPropertyType( "contract" );
			isContractVariationsBidirectional = true;
		}
		catch ( QueryException ex) {
			isContractVariationsBidirectional = false;
		}

		isContractVersioned = ( ( SessionFactoryImpl ) sessionFactory() ).getEntityPersister( Contract.class.getName() ).isVersioned();
	}

	@Test
	@SuppressWarnings( {"UnnecessaryBoxing"})
	public void testUpdateProperty() {
		clearCounts();

		Contract c = new Contract( null, "gail", "phone");
		c.addParty( new Party( "party" ) );
		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist(c);
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = (Contract) s.createCriteria( Contract.class ).uniqueResult();
		c.setCustomerName( "yogi" );
		assertEquals( 1, c.getParties().size() );
		Party party = ( Party ) c.getParties().iterator().next();
		party.setName( "new party" );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = (Contract) s.createCriteria( Contract.class ).uniqueResult();
		assertEquals( 1, c.getParties().size() );
		party = ( Party ) c.getParties().iterator().next();
		assertEquals( "party", party.getName() );
		if ( isContractPartiesBidirectional ) {
			assertSame( c, party.getContract() );
		}
		s.delete(c);
		assertEquals( Long.valueOf( 0 ), s.createCriteria( Contract.class ).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria( Party.class ).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 2 );
	}

	@Test
	@SuppressWarnings( {"UnnecessaryBoxing"})
	public void testCreateWithNonEmptyOneToManyCollectionOfNew() {
		clearCounts();

		Contract c = new Contract( null, "gail", "phone");
		c.addParty( new Party( "party" ) );
		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist(c);
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = (Contract) s.createCriteria( Contract.class ).uniqueResult();
		assertEquals( 1, c.getParties().size() );
		Party party = ( Party ) c.getParties().iterator().next();
		assertEquals( "party", party.getName() );
		if ( isContractPartiesBidirectional ) {
			assertSame( c, party.getContract() );
		}
		s.delete(c);
		assertEquals( Long.valueOf( 0 ), s.createCriteria( Contract.class ).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria( Party.class ).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 2 );
	}

	@Test
	@SuppressWarnings( {"UnnecessaryBoxing"})
	public void testCreateWithNonEmptyOneToManyCollectionOfExisting() {
		clearCounts();

		Party party = new Party( "party" );
		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist( party );
		t.commit();
		s.close();

		assertInsertCount( 1 );
		assertUpdateCount( 0 );
		clearCounts();

		Contract c = new Contract( null, "gail", "phone");
		c.addParty( party );
		s = openSession();
		t = s.beginTransaction();
		s.save( c );
		t.commit();
		s.close();

		assertInsertCount( 1 );
		// BUG, should be assertUpdateCount( ! isContractPartiesInverse && isPartyVersioned ? 1 : 0 );
		assertUpdateCount( 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = (Contract) s.createCriteria( Contract.class ).uniqueResult();
		if ( isContractPartiesInverse ) {
			assertEquals( 0 , c.getParties().size() );
			party = ( Party ) s.createCriteria( Party.class ).uniqueResult();
			assertNull( party.getContract() );
			s.delete( party );
		}
		else {
			assertEquals( 1 , c.getParties().size() );
			party = ( Party ) c.getParties().iterator().next();
			assertEquals( "party", party.getName() );
			if ( isContractPartiesBidirectional ) {
				assertSame( c, party.getContract() );
			}
		}
		s.delete(c);
		assertEquals( Long.valueOf( 0 ), s.createCriteria( Contract.class ).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria( Party.class ).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 2 );
	}

	@Test
	@SuppressWarnings( {"UnnecessaryBoxing"})
	public void testAddNewOneToManyElementToPersistentEntity() {
		clearCounts();

		Contract c = new Contract( null, "gail", "phone" );
		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist( c );
		t.commit();
		s.close();

		assertInsertCount( 1 );
		assertUpdateCount( 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = ( Contract ) s.get( Contract.class, c.getId() );
		assertEquals( 0, c.getParties().size() );
		c.addParty( new Party( "party" ) );
		t.commit();
		s.close();

		assertInsertCount( 1 );
		assertUpdateCount( isContractVersioned ? 1 : 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = (Contract) s.createCriteria( Contract.class ).uniqueResult();
		assertEquals( 1, c.getParties().size() );
		Party party = ( Party ) c.getParties().iterator().next();
		assertEquals( "party", party.getName() );
		if ( isContractPartiesBidirectional ) {
			assertSame( c, party.getContract() );
		}
		s.delete(c);
		assertEquals( Long.valueOf( 0 ), s.createCriteria( Contract.class ).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria( Party.class ).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 2 );
	}

	@Test
	@SuppressWarnings( {"UnnecessaryBoxing"})
	public void testAddExistingOneToManyElementToPersistentEntity() {
		clearCounts();

		Contract c = new Contract( null, "gail", "phone" );
		Party party = new Party( "party" );
		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist( c );
		s.persist( party );
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = ( Contract ) s.get( Contract.class, c.getId() );
		assertEquals( 0, c.getParties().size() );
		party = ( Party ) s.get( Party.class, party.getId() );
		if ( isContractPartiesBidirectional ) {
			assertNull( party.getContract() );
		}
		c.addParty( party );
		t.commit();
		s.close();

		assertInsertCount( 0 );
		if ( checkUpdateCountsAfterAddingExistingElement() ) {
			assertUpdateCount( isContractVersioned && ! isContractPartiesInverse ? 1 : 0 );
		}
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = (Contract) s.createCriteria( Contract.class ).uniqueResult();
		if ( isContractPartiesInverse ) {
			assertEquals( 0, c.getParties().size() );
			s.delete( party );
		}
		else {
			assertEquals( 1, c.getParties().size() );
			party = ( Party ) c.getParties().iterator().next();
			assertEquals( "party", party.getName() );
			if ( isContractPartiesBidirectional ) {
				assertSame( c, party.getContract() );
			}
		}
		s.delete(c);
		assertEquals( Long.valueOf( 0 ), s.createCriteria( Contract.class ).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria( Party.class ).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 2 );
	}

	@Test
	@SuppressWarnings( {"UnnecessaryBoxing"})
	public void testCreateWithEmptyOneToManyCollectionUpdateWithExistingElement() {
		clearCounts();

		Contract c = new Contract( null, "gail", "phone");
		Party party = new Party( "party" );

		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist( c );
		s.persist( party );
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		c.addParty( party );

		s = openSession();
		t = s.beginTransaction();
		s.update( c );
		t.commit();
		s.close();

		assertInsertCount( 0 );
		if ( checkUpdateCountsAfterAddingExistingElement() ) {
			assertUpdateCount( isContractVersioned && ! isContractPartiesInverse ? 1 : 0 );
		}
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = (Contract) s.createCriteria(Contract.class).uniqueResult();
		if ( isContractPartiesInverse ) {
			assertEquals( 0, c.getParties().size() );
			s.delete( party );
		}
		else {
			assertEquals( 1, c.getParties().size() );
			party = ( Party ) c.getParties().iterator().next();
			assertEquals( "party", party.getName() );
			if ( isContractPartiesBidirectional ) {
				assertSame( c, party.getContract() );
			}
		}
		s.delete(c);
		assertEquals( Long.valueOf( 0 ), s.createCriteria( Contract.class ).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria( Party.class ).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 2 );
	}

	@Test
	@SuppressWarnings( {"UnnecessaryBoxing"})
	public void testCreateWithNonEmptyOneToManyCollectionUpdateWithNewElement() {
		clearCounts();

		Contract c = new Contract( null, "gail", "phone");
		Party party = new Party( "party" );
		c.addParty( party );
		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist(c);
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		Party newParty = new Party( "new party" );
		c.addParty( newParty );

		s = openSession();
		t = s.beginTransaction();
		s.update( c );
		t.commit();
		s.close();

		assertInsertCount( 1 );
		assertUpdateCount( isContractVersioned ? 1 : 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = (Contract) s.createCriteria(Contract.class).uniqueResult();
		assertEquals( 2, c.getParties().size() );
		for ( Object o : c.getParties() ) {
			Party aParty = (Party) o;
			if ( aParty.getId() == party.getId() ) {
				assertEquals( "party", aParty.getName() );
			}
			else if ( aParty.getId() == newParty.getId() ) {
				assertEquals( "new party", aParty.getName() );
			}
			else {
				fail( "unknown party" );
			}
			if ( isContractPartiesBidirectional ) {
				assertSame( c, aParty.getContract() );
			}
		}
		s.delete(c);
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Contract.class).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Party.class).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 3 );
	}

	@Test
	@SuppressWarnings( {"UnusedAssignment", "UnnecessaryBoxing"})
	public void testCreateWithEmptyOneToManyCollectionMergeWithExistingElement() {
		clearCounts();

		Contract c = new Contract( null, "gail", "phone");
		Party party = new Party( "party" );

		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist( c );
		s.persist( party );
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		c.addParty( party );

		s = openSession();
		t = s.beginTransaction();
		c = ( Contract ) s.merge( c );
		t.commit();
		s.close();

		assertInsertCount( 0 );
		if ( checkUpdateCountsAfterAddingExistingElement() ) {
			assertUpdateCount( isContractVersioned && ! isContractPartiesInverse ? 1 : 0 );
		}
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = (Contract) s.createCriteria( Contract.class ).uniqueResult();
		if ( isContractPartiesInverse ) {
			assertEquals( 0, c.getParties().size() );
			s.delete( party );
		}
		else {
			assertEquals( 1, c.getParties().size() );
			party = ( Party ) c.getParties().iterator().next();
			assertEquals( "party", party.getName() );
			if ( isContractPartiesBidirectional ) {
				assertSame( c, party.getContract() );
			}
		}
		s.delete(c);
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Contract.class).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Party.class).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 2 );
	}

	@Test
	@SuppressWarnings( {"UnusedAssignment", "UnnecessaryBoxing"})
	public void testCreateWithNonEmptyOneToManyCollectionMergeWithNewElement() {
		clearCounts();

		Contract c = new Contract( null, "gail", "phone");
		Party party = new Party( "party" );
		c.addParty( party );
		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist(c);
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		Party newParty = new Party( "new party" );
		c.addParty( newParty );

		s = openSession();
		t = s.beginTransaction();
		c = ( Contract ) s.merge( c );
		t.commit();
		s.close();

		assertInsertCount( 1 );
		assertUpdateCount( isContractVersioned ? 1 : 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = (Contract) s.createCriteria(Contract.class).uniqueResult();
		assertEquals( 2, c.getParties().size() );
		for ( Object o : c.getParties() ) {
			Party aParty = (Party) o;
			if ( aParty.getId() == party.getId() ) {
				assertEquals( "party", aParty.getName() );
			}
			else if ( !aParty.getName().equals( newParty.getName() ) ) {
				fail( "unknown party:" + aParty.getName() );
			}
			if ( isContractPartiesBidirectional ) {
				assertSame( c, aParty.getContract() );
			}
		}
		s.delete(c);
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Contract.class).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Party.class).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 3 );
	}

	@Test
	@SuppressWarnings( {"UnnecessaryBoxing"})
	public void testMoveOneToManyElementToNewEntityCollection() {
		clearCounts();

		Contract c = new Contract( null, "gail", "phone");
		c.addParty( new Party( "party" ) );
		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist(c);
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = (Contract) s.createCriteria( Contract.class ).uniqueResult();
		assertEquals( 1, c.getParties().size() );
		Party party = ( Party ) c.getParties().iterator().next();
		assertEquals( "party", party.getName() );
		if ( isContractPartiesBidirectional ) {
			assertSame( c, party.getContract() );
		}
		c.removeParty( party );
		Contract c2 = new Contract(null, "david", "phone" );
		c2.addParty( party );
		s.save( c2 );
		t.commit();
		s.close();

		assertInsertCount( 1 );
		assertUpdateCount( isContractVersioned ? 1 : 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = (Contract) s.createCriteria( Contract.class ).add( Restrictions.idEq( Long.valueOf( c.getId() ) )).uniqueResult();
		c2 = (Contract) s.createCriteria( Contract.class ).add( Restrictions.idEq( Long.valueOf( c2.getId() ) )).uniqueResult();
		if ( isContractPartiesInverse ) {
			assertEquals( 1, c.getParties().size() );
			party = ( Party ) c.getParties().iterator().next();
			assertEquals( "party", party.getName() );
			if ( isContractPartiesBidirectional ) {
				assertSame( c, party.getContract() );
			}
			assertEquals( 0, c2.getParties().size() );
		}
		else {
			assertEquals( 0, c.getParties().size() );
			assertEquals( 1, c2.getParties().size() );
			party = ( Party ) c2.getParties().iterator().next();
			assertEquals( "party", party.getName() );
			if ( isContractPartiesBidirectional ) {
				assertSame( c2, party.getContract() );
			}
		}
		s.delete(c);
		s.delete( c2 );
		assertEquals( new Long( 0 ), s.createCriteria( Contract.class ).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( new Long( 0 ), s.createCriteria( Party.class ).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 3 );
	}

	@Test
	@SuppressWarnings( {"UnnecessaryBoxing"})
	public void testMoveOneToManyElementToExistingEntityCollection() {
		clearCounts();

		Contract c = new Contract( null, "gail", "phone");
		c.addParty( new Party( "party" ) );
		Contract c2 = new Contract(null, "david", "phone" );
		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist( c );
		s.persist( c2 );
		t.commit();
		s.close();

		assertInsertCount( 3 );
		assertUpdateCount( 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = (Contract) s.createCriteria( Contract.class ).add( Restrictions.idEq( Long.valueOf( c.getId() ) )).uniqueResult();
		assertEquals( 1, c.getParties().size() );
		Party party = ( Party ) c.getParties().iterator().next();
		assertEquals( "party", party.getName() );
		if ( isContractPartiesBidirectional ) {
			assertSame( c, party.getContract() );
		}
		c.removeParty( party );
		c2 = (Contract) s.createCriteria( Contract.class ).add( Restrictions.idEq( Long.valueOf( c2.getId() ) )).uniqueResult();
		c2.addParty( party );
		t.commit();
		s.close();

		assertInsertCount( 0 );
		assertUpdateCount( isContractVersioned ? 2 : 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = (Contract) s.createCriteria( Contract.class ).add( Restrictions.idEq( Long.valueOf( c.getId() ) )).uniqueResult();
		c2 = (Contract) s.createCriteria( Contract.class ).add( Restrictions.idEq( Long.valueOf( c2.getId() ) )).uniqueResult();
		if ( isContractPartiesInverse ) {
			assertEquals( 1, c.getParties().size() );
			party = ( Party ) c.getParties().iterator().next();
			assertEquals( "party", party.getName() );
			if ( isContractPartiesBidirectional ) {
				assertSame( c, party.getContract() );
			}
			assertEquals( 0, c2.getParties().size() );
		}
		else {
			assertEquals( 0, c.getParties().size() );
			assertEquals( 1, c2.getParties().size() );
			party = ( Party ) c2.getParties().iterator().next();
			assertEquals( "party", party.getName() );
			if ( isContractPartiesBidirectional ) {
				assertSame( c2, party.getContract() );
			}
		}
		s.delete(c);
		s.delete( c2 );
		assertEquals( Long.valueOf( 0 ), s.createCriteria( Contract.class ).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria( Party.class ).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 3 );
	}

	@Test
	@SuppressWarnings( {"UnnecessaryBoxing"})
	public void testRemoveOneToManyElementUsingUpdate() {
		clearCounts();

		Contract c = new Contract( null, "gail", "phone");
		Party party = new Party( "party" );
		c.addParty( party );

		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist( c );
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		c.removeParty( party );
		assertEquals( 0, c.getParties().size() );
		if ( isContractPartiesBidirectional ) {
			assertNull( party.getContract() );
		}

		s = openSession();
		t = s.beginTransaction();
		s.update( c );
		s.update( party );
		t.commit();
		s.close();

		if ( checkUpdateCountsAfterRemovingElementWithoutDelete() ) {
			assertUpdateCount( isContractVersioned && ! isContractPartiesInverse ? 1 : 0 );
		}
		assertDeleteCount( 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = ( Contract ) s.createCriteria( Contract.class ).uniqueResult();
		if ( isContractPartiesInverse ) {
			assertEquals( 1, c.getParties().size() );
			party = ( Party ) c.getParties().iterator().next();
			assertEquals( "party", party.getName() );
			assertSame( c, party.getContract() );
		}
		else {
			assertEquals( 0, c.getParties().size() );
			party = ( Party ) s.createCriteria( Party.class ).uniqueResult();
			if ( isContractPartiesBidirectional ) {
				assertNull( party.getContract() );
			}
			s.delete( party );
		}
		s.delete( c );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Contract.class).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Party.class).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 2 );
	}

	@Test
	@SuppressWarnings( {"UnusedAssignment", "UnnecessaryBoxing"})
	public void testRemoveOneToManyElementUsingMerge() {
		clearCounts();

		Contract c = new Contract( null, "gail", "phone");
		Party party = new Party( "party" );
		c.addParty( party );

		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist( c );
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		c.removeParty( party );
		assertEquals( 0, c.getParties().size() );
		if ( isContractPartiesBidirectional ) {
			assertNull( party.getContract() );
		}

		s = openSession();
		t = s.beginTransaction();
		c = ( Contract ) s.merge( c );
		party = ( Party ) s.merge( party );
		t.commit();
		s.close();

		if ( checkUpdateCountsAfterRemovingElementWithoutDelete() ) {
			assertUpdateCount( isContractVersioned && ! isContractPartiesInverse ? 1 : 0 );
		}
		assertDeleteCount( 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = ( Contract ) s.createCriteria( Contract.class ).uniqueResult();
		if ( isContractPartiesInverse ) {
			assertEquals( 1, c.getParties().size() );
			party = ( Party ) c.getParties().iterator().next();
			assertEquals( "party", party.getName() );
			assertSame( c, party.getContract() );
		}
		else {
			assertEquals( 0, c.getParties().size() );
			party = ( Party ) s.createCriteria( Party.class ).uniqueResult();
			if ( isContractPartiesBidirectional ) {
				assertNull( party.getContract() );
			}
			s.delete( party );
		}
		s.delete( c );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Contract.class).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Party.class).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 2 );
	}

	@Test
	@SuppressWarnings( {"UnnecessaryBoxing"})
	public void testDeleteOneToManyElement() {
		clearCounts();

		Contract c = new Contract( null, "gail", "phone");
		Party party = new Party( "party" );
		c.addParty( party );

		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist( c );
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		s.update( c );
		c.removeParty( party );
		s.delete( party );
		t.commit();
		s.close();

		assertUpdateCount( isContractVersioned ? 1 : 0 );
		assertDeleteCount( 1 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = ( Contract ) s.createCriteria( Contract.class ).uniqueResult();
		assertEquals( 0, c.getParties().size() );
		party = ( Party ) s.createCriteria( Party.class ).uniqueResult();
		assertNull( party );
		s.delete( c );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Contract.class).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Party.class).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 1 );
	}

	@Test
	@SuppressWarnings( {"UnnecessaryBoxing"})
	public void testRemoveOneToManyElementByDelete() {
		clearCounts();

		Contract c = new Contract( null, "gail", "phone");
		Party party = new Party( "party" );
		c.addParty( party );

		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist( c );
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		c.removeParty( party );
		assertEquals( 0, c.getParties().size() );
		if ( isContractPartiesBidirectional ) {
			assertNull( party.getContract() );
		}

		s = openSession();
		t = s.beginTransaction();
		s.update( c );
		s.delete( party );
		t.commit();
		s.close();

		assertUpdateCount( isContractVersioned ? 1 : 0 );
		assertDeleteCount( 1 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = ( Contract ) s.createCriteria( Contract.class ).uniqueResult();
		assertEquals( 0, c.getParties().size() );
		s.delete( c );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Contract.class).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Party.class).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 1 );
	}

	@Test
	@SuppressWarnings( {"UnnecessaryBoxing"})
	public void testRemoveOneToManyOrphanUsingUpdate() {
		clearCounts();

		Contract c = new Contract( null, "gail", "phone");
		ContractVariation cv = new ContractVariation( 1, c );
		cv.setText( "cv1" );

		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist( c );
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		c.getVariations().remove( cv );
		cv.setContract( null );
		assertEquals( 0, c.getVariations().size() );
		if ( isContractVariationsBidirectional ) {
			assertNull( cv.getContract() );
		}

		s = openSession();
		t = s.beginTransaction();
		s.update( c );
		t.commit();
		s.close();

		assertUpdateCount( isContractVersioned ? 1 : 0 );
		assertDeleteCount( 1 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = ( Contract ) s.createCriteria( Contract.class ).uniqueResult();
		assertEquals( 0, c.getVariations().size() );
		cv = ( ContractVariation ) s.createCriteria( ContractVariation.class ).uniqueResult();
		assertNull( cv );
		s.delete( c );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Contract.class).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(ContractVariation.class).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 1 );
	}

	@Test
	@SuppressWarnings( {"UnusedAssignment", "UnnecessaryBoxing"})
	public void testRemoveOneToManyOrphanUsingMerge() {
		Contract c = new Contract( null, "gail", "phone");
		ContractVariation cv = new ContractVariation( 1, c );

		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist( c );
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		c.getVariations().remove( cv );
		cv.setContract( null );
		assertEquals( 0, c.getVariations().size() );
		if ( isContractVariationsBidirectional ) {
			assertNull( cv.getContract() );
		}

		s = openSession();
		t = s.beginTransaction();
		c = ( Contract ) s.merge( c );
		cv = ( ContractVariation ) s.merge( cv );
		t.commit();
		s.close();

		assertUpdateCount( isContractVersioned ? 1 : 0 );
		assertDeleteCount( 1 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = ( Contract ) s.createCriteria( Contract.class ).uniqueResult();
		assertEquals( 0, c.getVariations().size() );
		cv = ( ContractVariation ) s.createCriteria( ContractVariation.class ).uniqueResult();
		assertNull( cv );
		s.delete( c );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Contract.class).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(ContractVariation.class).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 1 );
	}

	@Test
	@SuppressWarnings( {"UnnecessaryBoxing"})
	public void testDeleteOneToManyOrphan() {
		clearCounts();

		Contract c = new Contract( null, "gail", "phone");
		ContractVariation cv = new ContractVariation( 1, c );

		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist( c );
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		s.update( c );
		c.getVariations().remove( cv );
		cv.setContract( null );
		assertEquals( 0, c.getVariations().size() );
		s.delete( cv );
		t.commit();
		s.close();

		assertUpdateCount( isContractVersioned ? 1 : 0 );
		assertDeleteCount( 1 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		c = ( Contract ) s.createCriteria( Contract.class ).uniqueResult();
		assertEquals( 0, c.getVariations().size() );
		cv = ( ContractVariation ) s.createCriteria( ContractVariation.class ).uniqueResult();
		assertNull( cv );
		s.delete( c );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Contract.class).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(ContractVariation.class).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 1 );
	}

	@SuppressWarnings( {"UnnecessaryBoxing"})
	@Test
	public void testOneToManyCollectionOptimisticLockingWithMerge() {
		clearCounts();

		Contract cOrig = new Contract( null, "gail", "phone");
		Party partyOrig = new Party( "party" );
		cOrig.addParty( partyOrig );
		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist(cOrig);
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		Contract c = ( Contract ) s.get( Contract.class, cOrig.getId() );
		Party newParty = new Party( "new party" );
		c.addParty( newParty );
		t.commit();
		s.close();

		assertInsertCount( 1 );
		assertUpdateCount( isContractVersioned ? 1 : 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		cOrig.removeParty( partyOrig );
		try {
			s.merge( cOrig );
			assertFalse( isContractVersioned );
		}
		catch (StaleObjectStateException ex) {
			assertTrue( isContractVersioned);
		}
		finally {
			t.rollback();
		}
		s.close();
		
		s = openSession();
		t = s.beginTransaction();
		c = (Contract) s.createCriteria(Contract.class).uniqueResult();
		s.delete(c);
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Contract.class).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Party.class).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();

		assertUpdateCount( 0 );
		assertDeleteCount( 3 );
	}

	@SuppressWarnings( {"UnnecessaryBoxing"})
	@Test
	public void testOneToManyCollectionOptimisticLockingWithUpdate() {
		clearCounts();

		Contract cOrig = new Contract( null, "gail", "phone");
		Party partyOrig = new Party( "party" );
		cOrig.addParty( partyOrig );
		Session s = openSession();
		Transaction t = s.beginTransaction();
		s.persist(cOrig);
		t.commit();
		s.close();

		assertInsertCount( 2 );
		assertUpdateCount( 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		Contract c = ( Contract ) s.get( Contract.class, cOrig.getId() );
		Party newParty = new Party( "new party" );
		c.addParty( newParty );
		t.commit();
		s.close();

		assertInsertCount( 1 );
		assertUpdateCount( isContractVersioned ? 1 : 0 );
		clearCounts();

		s = openSession();
		t = s.beginTransaction();
		cOrig.removeParty( partyOrig );
		s.update( cOrig );
		try {
			t.commit();
			assertFalse( isContractVersioned );
		}
		catch (StaleObjectStateException ex) {
			assertTrue( isContractVersioned);
			t.rollback();
		}
		s.close();

		s = openSession();
		t = s.beginTransaction();
		c = (Contract) s.createCriteria(Contract.class).uniqueResult();
		s.createQuery( "delete from Party" ).executeUpdate();
		s.delete( c );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Contract.class).setProjection( Projections.rowCount() ).uniqueResult() );
		assertEquals( Long.valueOf( 0 ), s.createCriteria(Party.class).setProjection( Projections.rowCount() ).uniqueResult() );
		t.commit();
		s.close();
	}

	protected void clearCounts() {
		sessionFactory().getStatistics().clear();
	}

	protected void assertInsertCount(int expected) {
		int inserts = ( int ) sessionFactory().getStatistics().getEntityInsertCount();
		assertEquals( "unexpected insert count", expected, inserts );
	}

	protected void assertUpdateCount(int expected) {
		int updates = ( int ) sessionFactory().getStatistics().getEntityUpdateCount();
		assertEquals( "unexpected update counts", expected, updates );
	}

	protected void assertDeleteCount(int expected) {
		int deletes = ( int ) sessionFactory().getStatistics().getEntityDeleteCount();
		assertEquals( "unexpected delete counts", expected, deletes );
	}
}

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