TernaryMap.java

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
 */
package org.hibernate.envers.test.integration.manytomany.ternary;

import java.util.Arrays;
import javax.persistence.EntityManager;

import org.hibernate.envers.test.BaseEnversJPAFunctionalTestCase;
import org.hibernate.envers.test.Priority;
import org.hibernate.envers.test.entities.IntTestPrivSeqEntity;
import org.hibernate.envers.test.entities.StrTestPrivSeqEntity;
import org.hibernate.envers.test.tools.TestTools;

import org.junit.Assert;
import org.junit.Test;

/**
 * @author Adam Warski (adam at warski dot org)
 */
public class TernaryMap extends BaseEnversJPAFunctionalTestCase {
	private Integer str1_id;
	private Integer str2_id;

	private Integer int1_id;
	private Integer int2_id;

	private Integer map1_id;
	private Integer map2_id;

	@Override
	protected Class<?>[] getAnnotatedClasses() {
		return new Class[] {TernaryMapEntity.class, StrTestPrivSeqEntity.class, IntTestPrivSeqEntity.class};
	}

	@Test
	@Priority(10)
	public void initData() {
		EntityManager em = getEntityManager();

		StrTestPrivSeqEntity str1 = new StrTestPrivSeqEntity( "a" );
		StrTestPrivSeqEntity str2 = new StrTestPrivSeqEntity( "b" );

		IntTestPrivSeqEntity int1 = new IntTestPrivSeqEntity( 1 );
		IntTestPrivSeqEntity int2 = new IntTestPrivSeqEntity( 2 );

		TernaryMapEntity map1 = new TernaryMapEntity();
		TernaryMapEntity map2 = new TernaryMapEntity();

		// Revision 1 (map1: initialy one mapping int1 -> str1, map2: empty)
		em.getTransaction().begin();

		em.persist( str1 );
		em.persist( str2 );
		em.persist( int1 );
		em.persist( int2 );

		map1.getMap().put( int1, str1 );

		em.persist( map1 );
		em.persist( map2 );

		em.getTransaction().commit();

		// Revision 2 (map1: replacing the mapping, map2: adding two mappings)

		em.getTransaction().begin();

		map1 = em.find( TernaryMapEntity.class, map1.getId() );
		map2 = em.find( TernaryMapEntity.class, map2.getId() );

		str1 = em.find( StrTestPrivSeqEntity.class, str1.getId() );
		str2 = em.find( StrTestPrivSeqEntity.class, str2.getId() );

		int1 = em.find( IntTestPrivSeqEntity.class, int1.getId() );
		int2 = em.find( IntTestPrivSeqEntity.class, int2.getId() );

		map1.getMap().put( int1, str2 );

		map2.getMap().put( int1, str1 );
		map2.getMap().put( int2, str1 );

		em.getTransaction().commit();

		// Revision 3 (map1: removing a non-existing mapping, adding an existing mapping - no changes, map2: removing a mapping)
		em.getTransaction().begin();

		map1 = em.find( TernaryMapEntity.class, map1.getId() );
		map2 = em.find( TernaryMapEntity.class, map2.getId() );

		str2 = em.find( StrTestPrivSeqEntity.class, str2.getId() );

		int1 = em.find( IntTestPrivSeqEntity.class, int1.getId() );
		int2 = em.find( IntTestPrivSeqEntity.class, int2.getId() );

		map1.getMap().remove( int2 );
		map1.getMap().put( int1, str2 );

		map2.getMap().remove( int1 );

		em.getTransaction().commit();

		// Revision 4 (map1: adding a mapping, map2: adding a mapping)
		em.getTransaction().begin();

		map1 = em.find( TernaryMapEntity.class, map1.getId() );
		map2 = em.find( TernaryMapEntity.class, map2.getId() );

		str2 = em.find( StrTestPrivSeqEntity.class, str2.getId() );

		int1 = em.find( IntTestPrivSeqEntity.class, int1.getId() );
		int2 = em.find( IntTestPrivSeqEntity.class, int2.getId() );

		map1.getMap().put( int2, str2 );

		map2.getMap().put( int1, str2 );

		em.getTransaction().commit();
		//

		map1_id = map1.getId();
		map2_id = map2.getId();

		str1_id = str1.getId();
		str2_id = str2.getId();

		int1_id = int1.getId();
		int2_id = int2.getId();
	}

	@Test
	public void testRevisionsCounts() {
		assert Arrays.asList( 1, 2, 4 ).equals( getAuditReader().getRevisions( TernaryMapEntity.class, map1_id ) );
		assert Arrays.asList( 1, 2, 3, 4 ).equals( getAuditReader().getRevisions( TernaryMapEntity.class, map2_id ) );

		assert Arrays.asList( 1 ).equals( getAuditReader().getRevisions( StrTestPrivSeqEntity.class, str1_id ) );
		assert Arrays.asList( 1 ).equals( getAuditReader().getRevisions( StrTestPrivSeqEntity.class, str2_id ) );

		assert Arrays.asList( 1 ).equals( getAuditReader().getRevisions( IntTestPrivSeqEntity.class, int1_id ) );
		assert Arrays.asList( 1 ).equals( getAuditReader().getRevisions( IntTestPrivSeqEntity.class, int2_id ) );
	}

	@Test
	public void testHistoryOfMap1() {
		StrTestPrivSeqEntity str1 = getEntityManager().find( StrTestPrivSeqEntity.class, str1_id );
		StrTestPrivSeqEntity str2 = getEntityManager().find( StrTestPrivSeqEntity.class, str2_id );

		IntTestPrivSeqEntity int1 = getEntityManager().find( IntTestPrivSeqEntity.class, int1_id );
		IntTestPrivSeqEntity int2 = getEntityManager().find( IntTestPrivSeqEntity.class, int2_id );

		TernaryMapEntity rev1 = getAuditReader().find( TernaryMapEntity.class, map1_id, 1 );
		TernaryMapEntity rev2 = getAuditReader().find( TernaryMapEntity.class, map1_id, 2 );
		TernaryMapEntity rev3 = getAuditReader().find( TernaryMapEntity.class, map1_id, 3 );
		TernaryMapEntity rev4 = getAuditReader().find( TernaryMapEntity.class, map1_id, 4 );

		Assert.assertEquals( TestTools.makeMap( int1, str1 ), rev1.getMap() );
		Assert.assertEquals( TestTools.makeMap( int1, str2 ), rev2.getMap() );
		Assert.assertEquals( TestTools.makeMap( int1, str2 ), rev3.getMap() );
		Assert.assertEquals( TestTools.makeMap( int1, str2, int2, str2 ), rev4.getMap() );
	}

	@Test
	public void testHistoryOfMap2() {
		StrTestPrivSeqEntity str1 = getEntityManager().find( StrTestPrivSeqEntity.class, str1_id );
		StrTestPrivSeqEntity str2 = getEntityManager().find( StrTestPrivSeqEntity.class, str2_id );

		IntTestPrivSeqEntity int1 = getEntityManager().find( IntTestPrivSeqEntity.class, int1_id );
		IntTestPrivSeqEntity int2 = getEntityManager().find( IntTestPrivSeqEntity.class, int2_id );

		TernaryMapEntity rev1 = getAuditReader().find( TernaryMapEntity.class, map2_id, 1 );
		TernaryMapEntity rev2 = getAuditReader().find( TernaryMapEntity.class, map2_id, 2 );
		TernaryMapEntity rev3 = getAuditReader().find( TernaryMapEntity.class, map2_id, 3 );
		TernaryMapEntity rev4 = getAuditReader().find( TernaryMapEntity.class, map2_id, 4 );

		assert rev1.getMap().equals( TestTools.makeMap() );
		assert rev2.getMap().equals( TestTools.makeMap( int1, str1, int2, str1 ) );
		assert rev3.getMap().equals( TestTools.makeMap( int2, str1 ) );
		assert rev4.getMap().equals( TestTools.makeMap( int1, str2, int2, str1 ) );
	}
}