/*
* 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.onetomany;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.junit.Test;
import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;
import static org.junit.Assert.assertEquals;
/**
* @author Gavin King
*/
public class OneToManyTest extends BaseCoreFunctionalTestCase {
public String[] getMappings() {
return new String[] { "onetomany/Parent.hbm.xml" };
}
@SuppressWarnings( {"unchecked", "UnusedAssignment"})
@Test
public void testOneToManyLinkTable() {
Session s = openSession();
Transaction t = s.beginTransaction();
Child c = new Child();
c.setName("Child One");
Parent p = new Parent();
p.setName("Parent");
p.getChildren().add(c);
c.setParent(p);
s.save(p);
s.flush();
p.getChildren().remove(c);
c.setParent(null);
s.flush();
p.getChildren().add(c);
c.setParent(p);
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
c.setParent(null);
s.update(c);
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
c.setParent(p);
s.update(c);
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
c = (Child) s.createQuery("from Child").uniqueResult();
s.createQuery("from Child c left join fetch c.parent").list();
s.createQuery("from Child c inner join fetch c.parent").list();
s.clear();
p = (Parent) s.createQuery("from Parent p left join fetch p.children").uniqueResult();
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
s.createQuery("delete from Child").executeUpdate();
s.createQuery("delete from Parent").executeUpdate();
t.commit();
s.close();
}
@Test
public void testManyToManySize() {
Session s = openSession();
Transaction t = s.beginTransaction();
assertEquals( 0, s.createQuery("from Parent p where size(p.children) = 0").list().size() );
assertEquals( 0, s.createQuery("from Parent p where p.children.size = 0").list().size() );
t.commit();
s.close();
}
}