VersionTest.java

/*
 * 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.version;

import org.junit.Test;

import org.hibernate.Hibernate;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;

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

/**
 * @author Max Rydahl Andersen
 */
public class VersionTest extends BaseCoreFunctionalTestCase {
	@Override
	public String[] getMappings() {
		return new String[] { "version/PersonThing.hbm.xml" };
	}

	@Test
	public void testVersionShortCircuitFlush() {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		Person gavin = new Person("Gavin");
		new Thing("Passport", gavin);
		s.persist(gavin);
		t.commit();
		s.close();
		
		s = openSession();
		t = s.beginTransaction();
		Thing passp = (Thing) s.get(Thing.class, "Passport");
		passp.setLongDescription("blah blah blah");
		s.createQuery("from Person").list();
		s.createQuery("from Person").list();
		s.createQuery("from Person").list();
		t.commit();
		s.close();
		
		assertEquals( passp.getVersion(), 1 );

		s = openSession();
		t = s.beginTransaction();
		s.createQuery("delete from Thing").executeUpdate();
		s.createQuery("delete from Person").executeUpdate();
		t.commit();
		s.close();
	}
	
	@Test
	public void testCollectionVersion() {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		Person gavin = new Person("Gavin");
		new Thing("Passport", gavin);
		s.persist(gavin);
		t.commit();
		s.close();
		
		assertEquals(0, gavin.getVersion());
		
		s = openSession();
		t = s.beginTransaction();
		gavin = (Person) s.createCriteria(Person.class).uniqueResult();
		new Thing("Laptop", gavin);
		t.commit();
		s.close();
		
		assertEquals(1, gavin.getVersion());
		assertFalse( Hibernate.isInitialized( gavin.getThings() ) );

		s = openSession();
		t = s.beginTransaction();
		gavin = (Person) s.createCriteria(Person.class).uniqueResult();
		gavin.getThings().clear();
		t.commit();
		s.close();
		
		assertEquals(2, gavin.getVersion());
		assertTrue( Hibernate.isInitialized( gavin.getThings() ) );

		s = openSession();
		t = s.beginTransaction();
		s.delete(gavin);
		t.commit();
		s.close();
	}
	
	@Test
	public void testCollectionNoVersion() {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		Person gavin = new Person("Gavin");
		new Task("Code", gavin);
		s.persist(gavin);
		t.commit();
		s.close();
		
		assertEquals(0, gavin.getVersion());
		
		s = openSession();
		t = s.beginTransaction();
		gavin = (Person) s.createCriteria(Person.class).uniqueResult();
		new Task("Document", gavin);
		t.commit();
		s.close();
		
		assertEquals(0, gavin.getVersion());
		assertFalse( Hibernate.isInitialized( gavin.getTasks() ) );

		s = openSession();
		t = s.beginTransaction();
		gavin = (Person) s.createCriteria(Person.class).uniqueResult();
		gavin.getTasks().clear();
		t.commit();
		s.close();
		
		assertEquals(0, gavin.getVersion());
		assertTrue( Hibernate.isInitialized( gavin.getTasks() ) );

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

}