Hibernate example source code file (PersistentSetTest.java)

This example Hibernate source code file (PersistentSetTest.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

child, child, collectionstatistics, container, container, failureexpected, hashset, hhh-2485, parent, parent, persistentset, session, test, test, util

The Hibernate PersistentSetTest.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 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.collection.set;

import java.util.HashSet;

import org.hibernate.CacheMode;
import org.hibernate.Session;
import org.hibernate.cfg.Configuration;
import org.hibernate.cfg.Environment;
import org.hibernate.collection.internal.PersistentSet;
import org.hibernate.criterion.Restrictions;
import org.hibernate.stat.CollectionStatistics;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import org.junit.Test;

import org.hibernate.testing.FailureExpected;
import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;

/**
 * @author Steve Ebersole
 */
public class PersistentSetTest extends BaseCoreFunctionalTestCase {
	@Override
	public String[] getMappings() {
		return new String[] { "collection/set/Mappings.hbm.xml" };
	}

	@Override
	public void configure(Configuration cfg) {
		super.configure( cfg );
		cfg.setProperty( Environment.GENERATE_STATISTICS, "true" );
	}

	@Test
	public void testWriteMethodDirtying() {
		Parent parent = new Parent( "p1" );
		Child child = new Child( "c1" );
		parent.getChildren().add( child );
		child.setParent( parent );
		Child otherChild = new Child( "c2" );

		Session session = openSession();
		session.beginTransaction();
		session.save( parent );
		session.flush();
		// at this point, the set on parent has now been replaced with a PersistentSet...
		PersistentSet children = ( PersistentSet ) parent.getChildren();

		assertFalse( children.add( child ) );
		assertFalse( children.isDirty() );

		assertFalse( children.remove( otherChild ) );
		assertFalse( children.isDirty() );

		HashSet otherSet = new HashSet();
		otherSet.add( child );
		assertFalse( children.addAll( otherSet ) );
		assertFalse( children.isDirty() );

		assertFalse( children.retainAll( otherSet ) );
		assertFalse( children.isDirty() );

		otherSet = new HashSet();
		otherSet.add( otherChild );
		assertFalse( children.removeAll( otherSet ) );
		assertFalse( children.isDirty() );

		assertTrue( children.retainAll( otherSet ));
		assertTrue( children.isDirty() );
		assertTrue( children.isEmpty() );

		children.clear();
		session.delete( child );
		assertTrue( children.isDirty() );

		session.flush();

		children.clear();
		assertFalse( children.isDirty() );

		session.delete( parent );
		session.getTransaction().commit();
		session.close();
	}

	@Test
	public void testCollectionMerging() {
		Session session = openSession();
		session.beginTransaction();
		Parent parent = new Parent( "p1" );
		Child child = new Child( "c1" );
		parent.getChildren().add( child );
		child.setParent( parent );
		session.save( parent );
		session.getTransaction().commit();
		session.close();

		CollectionStatistics stats =  sessionFactory().getStatistics().getCollectionStatistics( Parent.class.getName() + ".children" );
		long recreateCount = stats.getRecreateCount();
		long updateCount = stats.getUpdateCount();

		session = openSession();
		session.beginTransaction();
		parent = ( Parent ) session.merge( parent );
		session.getTransaction().commit();
		session.close();

		assertEquals( 1, parent.getChildren().size() );
		assertEquals( recreateCount, stats.getRecreateCount() );
		assertEquals( updateCount, stats.getUpdateCount() );

		session = openSession();
		session.beginTransaction();
		parent = ( Parent ) session.get( Parent.class, "p1" );
		assertEquals( 1, parent.getChildren().size() );
		session.delete( parent );
		session.getTransaction().commit();
		session.close();
	}

	@Test
	public void testCollectiondirtyChecking() {
		Session session = openSession();
		session.beginTransaction();
		Parent parent = new Parent( "p1" );
		Child child = new Child( "c1" );
		parent.getChildren().add( child );
		child.setParent( parent );
		session.save( parent );
		session.getTransaction().commit();
		session.close();

		CollectionStatistics stats =  sessionFactory().getStatistics().getCollectionStatistics( Parent.class.getName() + ".children" );
		long recreateCount = stats.getRecreateCount();
		long updateCount = stats.getUpdateCount();

		session = openSession();
		session.beginTransaction();
		parent = ( Parent ) session.get( Parent.class, "p1" );
		assertEquals( 1, parent.getChildren().size() );
		session.getTransaction().commit();
		session.close();

		assertEquals( 1, parent.getChildren().size() );
		assertEquals( recreateCount, stats.getRecreateCount() );
		assertEquals( updateCount, stats.getUpdateCount() );

		session = openSession();
		session.beginTransaction();
		assertEquals( 1, parent.getChildren().size() );
		session.delete( parent );
		session.getTransaction().commit();
		session.close();
	}

	@Test
	public void testCompositeElementWriteMethodDirtying() {
		Container container = new Container( "p1" );
		Container.Content c1 = new Container.Content( "c1" );
		container.getContents().add( c1 );
		Container.Content c2 = new Container.Content( "c2" );

		Session session = openSession();
		session.beginTransaction();
		session.save( container );
		session.flush();
		// at this point, the set on container has now been replaced with a PersistentSet...
		PersistentSet children = (PersistentSet) container.getContents();

		assertFalse( children.add( c1 ) );
		assertFalse( children.isDirty() );

		assertFalse( children.remove( c2 ) );
		assertFalse( children.isDirty() );

		HashSet otherSet = new HashSet();
		otherSet.add( c1 );
		assertFalse( children.addAll( otherSet ) );
		assertFalse( children.isDirty() );

		assertFalse( children.retainAll( otherSet ) );
		assertFalse( children.isDirty() );

		otherSet = new HashSet();
		otherSet.add( c2 );
		assertFalse( children.removeAll( otherSet ) );
		assertFalse( children.isDirty() );

		assertTrue( children.retainAll( otherSet ));
		assertTrue( children.isDirty() );
		assertTrue( children.isEmpty() );

		children.clear();
		assertTrue( children.isDirty() );

		session.flush();

		children.clear();
		assertFalse( children.isDirty() );

		session.delete( container );
		session.getTransaction().commit();
		session.close();
	}

	@Test
	@FailureExpected( jiraKey = "HHH-2485" )
	public void testCompositeElementMerging() {
		Session session = openSession();
		session.beginTransaction();
		Container container = new Container( "p1" );
		Container.Content c1 = new Container.Content( "c1" );
		container.getContents().add( c1 );
		session.save( container );
		session.getTransaction().commit();
		session.close();

		CollectionStatistics stats =  sessionFactory().getStatistics().getCollectionStatistics( Container.class.getName() + ".contents" );
		long recreateCount = stats.getRecreateCount();
		long updateCount = stats.getUpdateCount();

		container.setName( "another name" );

		session = openSession();
		session.beginTransaction();
		container = ( Container ) session.merge( container );
		session.getTransaction().commit();
		session.close();

		assertEquals( 1, container.getContents().size() );
		assertEquals( recreateCount, stats.getRecreateCount() );
		assertEquals( updateCount, stats.getUpdateCount() );

		session = openSession();
		session.beginTransaction();
		container = ( Container ) session.get( Container.class, container.getId() );
		assertEquals( 1, container.getContents().size() );
		session.delete( container );
		session.getTransaction().commit();
		session.close();
	}

	@Test
	@FailureExpected( jiraKey = "HHH-2485" )
	public void testCompositeElementCollectionDirtyChecking() {
		Session session = openSession();
		session.beginTransaction();
		Container container = new Container( "p1" );
		Container.Content c1 = new Container.Content( "c1" );
		container.getContents().add( c1 );
		session.save( container );
		session.getTransaction().commit();
		session.close();

		CollectionStatistics stats =  sessionFactory().getStatistics().getCollectionStatistics( Container.class.getName() + ".contents" );
		long recreateCount = stats.getRecreateCount();
		long updateCount = stats.getUpdateCount();

		session = openSession();
		session.beginTransaction();
		container = ( Container ) session.get( Container.class, container.getId() );
		assertEquals( 1, container.getContents().size() );
		session.getTransaction().commit();
		session.close();

		assertEquals( 1, container.getContents().size() );
		assertEquals( recreateCount, stats.getRecreateCount() );
		assertEquals( updateCount, stats.getUpdateCount() );

		session = openSession();
		session.beginTransaction();
		container = ( Container ) session.get( Container.class, container.getId() );
		assertEquals( 1, container.getContents().size() );
		session.delete( container );
		session.getTransaction().commit();
		session.close();
	}

	@Test
	public void testLoadChildCheckParentContainsChildCache() {
		Parent parent = new Parent( "p1" );
		Child child = new Child( "c1" );
		child.setDescription( "desc1" );
		parent.getChildren().add( child );
		child.setParent( parent );
		Child otherChild = new Child( "c2" );
		otherChild.setDescription( "desc2" );
		parent.getChildren().add( otherChild );
		otherChild.setParent( parent );

		Session session = openSession();
		session.beginTransaction();
		session.save( parent );
		session.getTransaction().commit();

		session = openSession();
		session.beginTransaction();
		parent = ( Parent ) session.get( Parent.class, parent.getName() );
		assertTrue( parent.getChildren().contains( child ) );
		assertTrue( parent.getChildren().contains( otherChild ) );
		session.getTransaction().commit();

		session = openSession();
		session.beginTransaction();

		child = ( Child ) session.get( Child.class, child.getName() );
		assertTrue( child.getParent().getChildren().contains( child ) );
		session.clear();

		child = ( Child ) session.createCriteria( Child.class, child.getName() )
				.setCacheable( true )
				.add( Restrictions.idEq( "c1" ) )
				.uniqueResult();
		assertTrue( child.getParent().getChildren().contains( child ) );
		assertTrue( child.getParent().getChildren().contains( otherChild ) );
		session.clear();

		child = ( Child ) session.createCriteria( Child.class, child.getName() )
				.setCacheable( true )
				.add( Restrictions.idEq( "c1" ) )
				.uniqueResult();
		assertTrue( child.getParent().getChildren().contains( child ) );
		assertTrue( child.getParent().getChildren().contains( otherChild ) );
		session.clear();

		child = ( Child ) session.createQuery( "from Child where name = 'c1'" )
				.setCacheable( true )
				.uniqueResult();
		assertTrue( child.getParent().getChildren().contains( child ) );

		child = ( Child ) session.createQuery( "from Child where name = 'c1'" )
				.setCacheable( true )
				.uniqueResult();
		assertTrue( child.getParent().getChildren().contains( child ) );

		session.delete( child.getParent() );
		session.getTransaction().commit();
		session.close();
	}

	@Test
	public void testLoadChildCheckParentContainsChildNoCache() {
		Parent parent = new Parent( "p1" );
		Child child = new Child( "c1" );
		parent.getChildren().add( child );
		child.setParent( parent );
		Child otherChild = new Child( "c2" );
		parent.getChildren().add( otherChild );
		otherChild.setParent( parent );

		Session session = openSession();
		session.beginTransaction();
		session.save( parent );
		session.getTransaction().commit();

		session = openSession();
		session.beginTransaction();
		session.setCacheMode( CacheMode.IGNORE );
		parent = ( Parent ) session.get( Parent.class, parent.getName() );
		assertTrue( parent.getChildren().contains( child ) );
		assertTrue( parent.getChildren().contains( otherChild ) );
		session.getTransaction().commit();

		session = openSession();
		session.beginTransaction();
		session.setCacheMode( CacheMode.IGNORE );

		child = ( Child ) session.get( Child.class, child.getName() );
		assertTrue( child.getParent().getChildren().contains( child ) );
		session.clear();

		child = ( Child ) session.createCriteria( Child.class, child.getName() )
				.add( Restrictions.idEq( "c1" ) )
				.uniqueResult();
		assertTrue( child.getParent().getChildren().contains( child ) );
		assertTrue( child.getParent().getChildren().contains( otherChild ) );
		session.clear();

		child = ( Child ) session.createQuery( "from Child where name = 'c1'" ).uniqueResult();
		assertTrue( child.getParent().getChildren().contains( child ) );

		session.delete( child.getParent() );
		session.getTransaction().commit();
		session.close();
	}
}