Hibernate example source code file (EagerKeyManyToOneTest.java)

This example Hibernate source code file (EagerKeyManyToOneTest.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

card, card, card_id, card_id, cardfield, class, eagerkeymanytoonetest, key, key, key_id, key_id, session, string, testforissue

The Hibernate EagerKeyManyToOneTest.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2010, 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.annotations.cid.keymanytoone;

import org.hibernate.Session;

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.assertSame;
import static org.junit.Assert.fail;

/**
 * @author Steve Ebersole
 */
public class EagerKeyManyToOneTest extends BaseCoreFunctionalTestCase {
	public static final String CARD_ID = "cardId";
	public static final String KEY_ID = "keyId";

	@Override
	protected Class<?>[] getAnnotatedClasses() {
		return new Class[] { Card.class, CardField.class, Key.class, PrimaryKey.class };
	}

	@Test
	@TestForIssue( jiraKey = "HHH-4147" )
	public void testLoadEntityWithEagerFetchingToKeyManyToOneReferenceBackToSelf() {
		// based on the core testsuite test of same name in org.hibernate.test.keymanytoone.bidir.component.EagerKeyManyToOneTest
		// meant to test against regression relating to http://opensource.atlassian.com/projects/hibernate/browse/HHH-2277
		// and http://opensource.atlassian.com/projects/hibernate/browse/HHH-4147

		{
			Session s = openSession();
			s.beginTransaction();
			Card card = new Card( CARD_ID );
			Key key = new Key( KEY_ID );
			card.addField( card, key );
			s.persist( key );
			s.persist( card );
			s.getTransaction().commit();
			s.close();
		}

		{
			Session s = openSession();
			s.beginTransaction();
			try {
				Card card = (Card) s.get( Card.class, CARD_ID );
				assertEquals( 1, card.getFields().size() );
				CardField cf = card.getFields().iterator().next();
				assertSame( card, cf.getPrimaryKey().getCard() );
			}
			catch ( StackOverflowError soe ) {
				fail( "eager + key-many-to-one caused stack-overflow in annotations" );
			}
			finally {
				s.getTransaction().commit();
				s.close();
			}
		}

		{
			Session s = openSession();
			s.beginTransaction();
			Card card = (Card) s.get( Card.class, CARD_ID );
			Key key = (Key) s.get( Key.class, KEY_ID );
			s.delete( card );
			s.delete( key );
			s.getTransaction().commit();
			s.close();
		}
	}
}