/*
* 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.jpa.test.cascade;
import java.util.ArrayList;
import java.util.Collection;
import javax.persistence.Entity;
import javax.persistence.EntityManager;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.ManyToOne;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import org.junit.Test;
import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;
import static javax.persistence.CascadeType.DETACH;
import static javax.persistence.CascadeType.REMOVE;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
/**
* @author Emmanuel Bernard
*/
public class DetachAndContainsTest extends BaseEntityManagerFunctionalTestCase {
@Test
public void testDetach() {
EntityManager em = getOrCreateEntityManager();
em.getTransaction().begin();
Tooth tooth = new Tooth();
Mouth mouth = new Mouth();
em.persist( mouth );
em.persist( tooth );
tooth.mouth = mouth;
mouth.teeth = new ArrayList<Tooth>();
mouth.teeth.add( tooth );
em.getTransaction().commit();
em.close();
em = getOrCreateEntityManager();
em.getTransaction().begin();
mouth = em.find( Mouth.class, mouth.id );
assertNotNull( mouth );
assertEquals( 1, mouth.teeth.size() );
tooth = mouth.teeth.iterator().next();
em.detach( mouth );
assertFalse( em.contains( tooth ) );
em.getTransaction().commit();
em.close();
em = getOrCreateEntityManager();
em.getTransaction().begin();
em.remove( em.find( Mouth.class, mouth.id ) );
em.getTransaction().commit();
em.close();
}
@Override
public Class[] getAnnotatedClasses() {
return new Class[] {
Mouth.class,
Tooth.class
};
}
@Entity
@Table(name = "mouth")
public static class Mouth {
@Id
@GeneratedValue
public Integer id;
@OneToMany(mappedBy = "mouth", cascade = { DETACH, REMOVE } )
public Collection<Tooth> teeth;
}
@Entity
@Table(name = "tooth")
public static class Tooth {
@Id
@GeneratedValue
public Integer id;
public String type;
@ManyToOne
public Mouth mouth;
}
}