Hibernate example source code file (CollectionTest.java)

This example Hibernate source code file (CollectionTest.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

email, email, hibernateexception, jdbc, long, mammal, permission, permission, session, sql, test, test, transaction, user, user, zoo

The Hibernate CollectionTest.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2006-2011, 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.original;
import java.sql.SQLException;

import org.hibernate.Hibernate;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.Transaction;

import org.junit.Test;

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

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

/**
 * @author Gavin King
 */
public class CollectionTest extends BaseCoreFunctionalTestCase {
	@Override
	public String[] getMappings() {
		return new String[] { "collection/original/UserPermissions.hbm.xml", "collection/original/Zoo.hbm.xml" };
	}

	@Test
	public void testExtraLazy() throws HibernateException, SQLException {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		User u = new User( "gavin" );
		u.getPermissions().add( new Permission( "obnoxiousness" ) );
		u.getPermissions().add( new Permission( "pigheadedness" ) );
		u.getSessionData().put( "foo", "foo value" );
		s.persist( u );
		t.commit();
		s.close();
		s = openSession();
		t = s.beginTransaction();
		u = ( User ) s.get( User.class, "gavin" );

		assertFalse( Hibernate.isInitialized( u.getPermissions() ) );
		assertEquals( u.getPermissions().size(), 2 );
		assertTrue( u.getPermissions().contains( new Permission( "obnoxiousness" ) ) );
		assertFalse( u.getPermissions().contains( new Permission( "silliness" ) ) );
		assertNotNull( u.getPermissions().get( 1 ) );
		assertNull( u.getPermissions().get( 3 ) );
		assertFalse( Hibernate.isInitialized( u.getPermissions() ) );

		assertFalse( Hibernate.isInitialized( u.getSessionData() ) );
		assertEquals( u.getSessionData().size(), 1 );
		assertTrue( u.getSessionData().containsKey( "foo" ) );
		assertFalse( u.getSessionData().containsKey( "bar" ) );
		assertTrue( u.getSessionData().containsValue( "foo value" ) );
		assertFalse( u.getSessionData().containsValue( "bar" ) );
		assertEquals( "foo value", u.getSessionData().get( "foo" ) );
		assertNull( u.getSessionData().get( "bar" ) );
		assertFalse( Hibernate.isInitialized( u.getSessionData() ) );

		assertFalse( Hibernate.isInitialized( u.getSessionData() ) );
		u.getSessionData().put( "bar", "bar value" );
		u.getSessionAttributeNames().add( "bar" );
		assertFalse( Hibernate.isInitialized( u.getSessionAttributeNames() ) );
		assertTrue( Hibernate.isInitialized( u.getSessionData() ) );

		s.delete( u );
		t.commit();
		s.close();
	}

	@Test
	public void testMerge() throws HibernateException, SQLException {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		User u = new User( "gavin" );
		u.getPermissions().add( new Permission( "obnoxiousness" ) );
		u.getPermissions().add( new Permission( "pigheadedness" ) );
		s.persist( u );
		t.commit();
		s.close();

		s = openSession();
		t = s.beginTransaction();
		User u2 = ( User ) s.createCriteria( User.class ).uniqueResult();
		u2.setPermissions( null ); //forces one shot delete
		s.merge( u );
		t.commit();
		s.close();

		u.getPermissions().add( new Permission( "silliness" ) );

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

		s = openSession();
		t = s.beginTransaction();
		u2 = ( User ) s.createCriteria( User.class ).uniqueResult();
		assertEquals( u2.getPermissions().size(), 3 );
		assertEquals( ( ( Permission ) u2.getPermissions().get( 0 ) ).getType(), "obnoxiousness" );
		assertEquals( ( ( Permission ) u2.getPermissions().get( 2 ) ).getType(), "silliness" );
		t.commit();
		s.close();

		s = openSession();
		t = s.beginTransaction();
		s.delete( u2 );
		s.flush();
		t.commit();
		s.close();

	}

	@Test
	public void testFetch() {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		User u = new User( "gavin" );
		u.getPermissions().add( new Permission( "obnoxiousness" ) );
		u.getPermissions().add( new Permission( "pigheadedness" ) );
		u.getEmailAddresses().add( new Email( "gavin@hibernate.org" ) );
		u.getEmailAddresses().add( new Email( "gavin.king@jboss.com" ) );
		s.persist( u );
		t.commit();
		s.close();

		s = openSession();
		t = s.beginTransaction();
		User u2 = ( User ) s.createCriteria( User.class ).uniqueResult();
		assertTrue( Hibernate.isInitialized( u2.getEmailAddresses() ) );
		assertFalse( Hibernate.isInitialized( u2.getPermissions() ) );
		assertEquals( u2.getEmailAddresses().size(), 2 );
		s.delete( u2 );
		t.commit();
		s.close();
	}

	@Test
	public void testUpdateOrder() {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		User u = new User( "gavin" );
		u.getSessionData().put( "foo", "foo value" );
		u.getSessionData().put( "bar", "bar value" );
		u.getEmailAddresses().add( new Email( "gavin.king@jboss.com" ) );
		u.getEmailAddresses().add( new Email( "gavin@hibernate.org" ) );
		u.getEmailAddresses().add( new Email( "gavin@illflow.com" ) );
		u.getEmailAddresses().add( new Email( "gavin@nospam.com" ) );
		s.persist( u );
		t.commit();
		s.close();

		u.getSessionData().clear();
		u.getSessionData().put( "baz", "baz value" );
		u.getSessionData().put( "bar", "bar value" );
		u.getEmailAddresses().remove( 0 );
		u.getEmailAddresses().remove( 2 );

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

		u.getSessionData().clear();
		u.getEmailAddresses().add( 0, new Email( "gavin@nospam.com" ) );
		u.getEmailAddresses().add( new Email( "gavin.king@jboss.com" ) );

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

		s = openSession();
		t = s.beginTransaction();
		s.delete( u );
		t.commit();
		s.close();

	}

	@Test
	public void testValueMap() {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		User u = new User( "gavin" );
		u.getSessionData().put( "foo", "foo value" );
		u.getSessionData().put( "bar", null );
		u.getEmailAddresses().add( null );
		u.getEmailAddresses().add( new Email( "gavin.king@jboss.com" ) );
		u.getEmailAddresses().add( null );
		u.getEmailAddresses().add( null );
		s.persist( u );
		t.commit();
		s.close();

		s = openSession();
		t = s.beginTransaction();
		User u2 = ( User ) s.createCriteria( User.class ).uniqueResult();
		assertFalse( Hibernate.isInitialized( u2.getSessionData() ) );
		assertEquals( u2.getSessionData().size(), 1 );
		assertEquals( u2.getEmailAddresses().size(), 2 );
		u2.getSessionData().put( "foo", "new foo value" );
		u2.getEmailAddresses().set( 1, new Email( "gavin@hibernate.org" ) );
		//u2.getEmailAddresses().remove(3);
		//u2.getEmailAddresses().remove(2);
		t.commit();
		s.close();

		s = openSession();
		t = s.beginTransaction();
		u2 = ( User ) s.createCriteria( User.class ).uniqueResult();
		assertFalse( Hibernate.isInitialized( u2.getSessionData() ) );
		assertEquals( u2.getSessionData().size(), 1 );
		assertEquals( u2.getEmailAddresses().size(), 2 );
		assertEquals( u2.getSessionData().get( "foo" ), "new foo value" );
		assertEquals( ( ( Email ) u2.getEmailAddresses().get( 1 ) ).getAddress(), "gavin@hibernate.org" );
		s.delete( u2 );
		t.commit();
		s.close();
	}

	@Test
	@TestForIssue( jiraKey = "HHH-3636" )
	public void testCollectionInheritance() {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		Zoo zoo = new Zoo();
		Mammal m = new Mammal();
		m.setMammalName( "name1" );
		m.setMammalName2( "name2" );
		m.setMammalName3( "name3" );
		m.setZoo( zoo );
		zoo.getAnimals().add( m );
		Long id = ( Long ) s.save( zoo );
		t.commit();
		s.close();

		s = openSession();
		t = s.beginTransaction();
		Zoo found = ( Zoo ) s.get( Zoo.class, id );
		found.getAnimals().size();
		s.delete( found );
		t.commit();
		s.close();
	}
}