/*
* 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.onetoone.singletable;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import org.hibernate.cfg.Environment;
import org.hibernate.stat.EntityStatistics;
import org.junit.Test;
import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
/**
* @author Gavin King
*/
public class DiscrimSubclassOneToOneTest extends BaseCoreFunctionalTestCase {
@Override
public String[] getMappings() {
return new String[] { "onetoone/singletable/Person.hbm.xml" };
}
@Override
public void configure(Configuration cfg) {
cfg.setProperty(Environment.USE_SECOND_LEVEL_CACHE, "false");
cfg.setProperty(Environment.GENERATE_STATISTICS, "true");
}
@Test
public void testOneToOneOnSubclass() {
Person p = new Person();
p.name = "Gavin";
Address a = new Address();
a.entityName = "Gavin";
a.zip = "3181";
a.state = "VIC";
a.street = "Karbarook Ave";
p.address = a;
Session s = openSession();
Transaction t = s.beginTransaction();
s.persist(p);
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
EntityStatistics addressStats = sessionFactory().getStatistics().getEntityStatistics( Address.class.getName() );
EntityStatistics mailingAddressStats = sessionFactory().getStatistics().getEntityStatistics("MailingAddress");
p = (Person) s.createQuery("from Person p join fetch p.address left join fetch p.mailingAddress").uniqueResult();
assertNotNull(p.address); assertNull(p.mailingAddress);
s.clear();
assertEquals( addressStats.getFetchCount(), 0 );
assertEquals( mailingAddressStats.getFetchCount(), 0 );
p = (Person) s.createQuery("from Person p join fetch p.address").uniqueResult();
assertNotNull(p.address); assertNull(p.mailingAddress);
s.clear();
assertEquals( addressStats.getFetchCount(), 0 );
assertEquals( mailingAddressStats.getFetchCount(), 1 );
p = (Person) s.createQuery("from Person").uniqueResult();
assertNotNull(p.address); assertNull(p.mailingAddress);
s.clear();
assertEquals( addressStats.getFetchCount(), 1 );
assertEquals( mailingAddressStats.getFetchCount(), 2 );
p = (Person) s.createQuery("from Entity").uniqueResult();
assertNotNull(p.address); assertNull(p.mailingAddress);
s.clear();
assertEquals( addressStats.getFetchCount(), 2 );
assertEquals( mailingAddressStats.getFetchCount(), 3 );
//note that in here join fetch is used for the nullable
//one-to-one, due to a very special case of default
p = (Person) s.get(Person.class, "Gavin");
assertNotNull(p.address); assertNull(p.mailingAddress);
s.clear();
assertEquals( addressStats.getFetchCount(), 2 );
assertEquals( mailingAddressStats.getFetchCount(), 3 );
p = (Person) s.get(Entity.class, "Gavin");
assertNotNull(p.address); assertNull(p.mailingAddress);
s.clear();
assertEquals( addressStats.getFetchCount(), 2 );
assertEquals( mailingAddressStats.getFetchCount(), 3 );
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
Org org = new Org();
org.name = "IFA";
Address a2 = new Address();
a2.entityName = "IFA";
a2.zip = "3181";
a2.state = "VIC";
a2.street = "Orrong Rd";
org.addresses.add(a2);
s.persist(org);
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
org = (Org) s.get(Entity.class, "IFA");
s.clear();
List list = s.createQuery("from Entity e order by e.name").list();
p = (Person) list.get(0);
assertNotNull(p.address); assertNull(p.mailingAddress);
org = (Org) list.get(1);
assertEquals( org.addresses.size(), 1 );
s.clear();
list = s.createQuery("from Entity e left join fetch e.address left join fetch e.mailingAddress order by e.name").list();
p = (Person) list.get(0);
org = (Org) list.get(1);
assertNotNull(p.address); assertNull(p.mailingAddress);
assertEquals( org.addresses.size(), 1 );
s.delete(p);
s.delete(org);
t.commit();
s.close();
}
}