DeleteOneToOneOrphansTest.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.test.orphan.one2one.fk.reversed.unidirectional;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;

import java.util.List;

import org.hibernate.Session;
import org.hibernate.testing.TestForIssue;
import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;
import org.junit.Test;

/**
 * @author Steve Ebersole
 */
public class DeleteOneToOneOrphansTest extends BaseCoreFunctionalTestCase {
	public String[] getMappings() {
		return new String[] { "orphan/one2one/fk/reversed/unidirectional/Mapping.hbm.xml" };
	}

	private void createData() {
		Session session = openSession();
		session.beginTransaction();
		Employee emp = new Employee();
		emp.setInfo( new EmployeeInfo() );
		session.save( emp );
		session.getTransaction().commit();
		session.close();
	}

	private void cleanupData() {
		Session session = openSession();
		session.beginTransaction();
		session.createQuery( "delete Employee" ).executeUpdate();
		session.createQuery( "delete EmployeeInfo" ).executeUpdate();
		session.getTransaction().commit();
		session.close();
	}

	@Test
	public void testOrphanedWhileManaged() {
		createData();

		Session session = openSession();
		session.beginTransaction();
		List results = session.createQuery( "from EmployeeInfo" ).list();
		assertEquals( 1, results.size() );
		results = session.createQuery( "from Employee" ).list();
		assertEquals( 1, results.size() );
		Employee emp = ( Employee ) results.get( 0 );
		assertNotNull( emp.getInfo() );
		emp.setInfo( null );
		session.getTransaction().commit();
		session.close();

		session = openSession();
		session.beginTransaction();
		emp = ( Employee ) session.get( Employee.class, emp.getId() );
		assertNull( emp.getInfo() );
		results = session.createQuery( "from EmployeeInfo" ).list();
		assertEquals( 0, results.size() );
		results = session.createQuery( "from Employee" ).list();
		assertEquals( 1, results.size() );
		session.getTransaction().commit();
		session.close();

		cleanupData();
	}

	@Test
	@TestForIssue( jiraKey = "HHH-5267" )
	public void testOrphanedWhileDetached() {
		createData();

		Session session = openSession();
		session.beginTransaction();
		List results = session.createQuery( "from EmployeeInfo" ).list();
		assertEquals( 1, results.size() );
		results = session.createQuery( "from Employee" ).list();
		assertEquals( 1, results.size() );
		Employee emp = ( Employee ) results.get( 0 );
		assertNotNull( emp.getInfo() );

		//only fails if the object is detached
		session.getTransaction().commit();
		session.close();
		session = openSession();
		session.beginTransaction();

		emp.setInfo( null );

		//save using the new session (this used to work prior to 3.5.x)
		session.saveOrUpdate(emp);

		session.getTransaction().commit();
		session.close();

		session = openSession();
		session.beginTransaction();
		emp = ( Employee ) session.get( Employee.class, emp.getId() );
		assertNull( emp.getInfo() );
		// TODO: If merge was used instead of saveOrUpdate, this would work.
		// However, re-attachment does not currently support handling orphans.
		// See HHH-3795
//		results = session.createQuery( "from EmployeeInfo" ).list();
//		assertEquals( 0, results.size() );
		results = session.createQuery( "from Employee" ).list();
		assertEquals( 1, results.size() );
		session.getTransaction().commit();
		session.close();

		cleanupData();
	}
	
	@Test
	@TestForIssue(jiraKey = "HHH-6484")
	public void testReplacedWhileManaged() {
		createData();

		Session session = openSession();
		session.beginTransaction();
		List results = session.createQuery( "from EmployeeInfo" ).list();
		assertEquals( 1, results.size() );
		results = session.createQuery( "from Employee" ).list();
		assertEquals( 1, results.size() );
		Employee emp = (Employee) results.get( 0 );
		assertNotNull( emp.getInfo() );

		// Replace with a new EmployeeInfo instance
		emp.setInfo( new EmployeeInfo() );

		session.getTransaction().commit();
		session.close();

		session = openSession();
		session.beginTransaction();
		emp = (Employee) session.get( Employee.class, emp.getId() );
		assertNotNull( emp.getInfo() );
		results = session.createQuery( "from EmployeeInfo" ).list();
		assertEquals( 1, results.size() );
		results = session.createQuery( "from Employee" ).list();
		assertEquals( 1, results.size() );
		session.getTransaction().commit();
		session.close();

		cleanupData();
	}
}