/*
* 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.test.jpa.fetch;
import java.util.Date;
import org.junit.Test;
import org.hibernate.Hibernate;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.test.jpa.AbstractJPATest;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* @author Emmanuel Bernard
*/
public class FetchingTest extends AbstractJPATest {
@Override
public String[] getMappings() {
return new String[] { "jpa/fetch/Person.hbm.xml" };
}
@Test
public void testLazy() throws Exception {
Session s;
Transaction tx;
s = openSession();
tx = s.beginTransaction();
Person p = new Person( "Gavin", "King", "JBoss Inc" );
Stay stay = new Stay( p, new Date(), new Date(), "A380", "Blah", "Blah" );
p.addStay( stay );
s.persist( p );
tx.commit();
s.clear();
tx = s.beginTransaction();
p = (Person) s.createQuery( "select p from Person p where p.firstName = :name" )
.setParameter( "name", "Gavin" ).uniqueResult();
assertFalse( Hibernate.isInitialized( p.getStays() ) );
s.delete( p );
tx.commit();
s.close();
}
@Test
public void testHibernateFetchingLazy() throws Exception {
Session s;
Transaction tx;
s = openSession();
tx = s.beginTransaction();
Person p = new Person( "Gavin", "King", "JBoss Inc" );
Stay stay = new Stay( null, new Date(), new Date(), "A380", "Blah", "Blah" );
Stay stay2 = new Stay( null, new Date(), new Date(), "A320", "Blah", "Blah" );
Stay stay3 = new Stay( null, new Date(), new Date(), "A340", "Blah", "Blah" );
stay.setOldPerson( p );
stay2.setVeryOldPerson( p );
stay3.setVeryOldPerson( p );
p.addOldStay( stay );
p.addVeryOldStay( stay2 );
p.addVeryOldStay( stay3 );
s.persist( p );
tx.commit();
s.clear();
tx = s.beginTransaction();
p = (Person) s.createQuery( "select p from Person p where p.firstName = :name" )
.setParameter( "name", "Gavin" ).uniqueResult();
assertFalse( Hibernate.isInitialized( p.getOldStays() ) );
assertEquals( 1, p.getOldStays().size() );
assertFalse( "lazy extra is failing", Hibernate.isInitialized( p.getOldStays() ) );
s.clear();
stay = (Stay) s.get( Stay.class, stay.getId() );
assertTrue( ! Hibernate.isInitialized( stay.getOldPerson() ) );
s.clear();
stay3 = (Stay) s.get( Stay.class, stay3.getId() );
assertTrue( "FetchMode.JOIN should overrides lazy options", Hibernate.isInitialized( stay3.getVeryOldPerson() ) );
s.delete( stay3.getVeryOldPerson() );
tx.commit();
s.close();
}
}