Hibernate example source code file (AssociationTest.java)

This example Hibernate source code file (AssociationTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

class, entitymanager, exception, incident, incident, incidentstatus, incidentstatus, kitchen, oven, oven, override, string, test, test

The Hibernate AssociationTest.java source code

package org.hibernate.ejb.test.association;

import javax.persistence.EntityManager;

import org.hibernate.ejb.test.BaseEntityManagerFunctionalTestCase;

import org.junit.Test;

/**
 * @author Emmanuel Bernard
 */
public class AssociationTest extends BaseEntityManagerFunctionalTestCase {
	@Test
	public void testBidirOneToOne() throws Exception {
		EntityManager em = getOrCreateEntityManager();
		em.getTransaction().begin();
		String id = "10";
		Incident i = em.find( Incident.class, id );
		if ( i == null ) {
			i = new Incident( id );
			IncidentStatus ist = new IncidentStatus( id );
			i.setIncidentStatus( ist );
			ist.setIncident( i );
			em.persist( i );
		}
		em.getTransaction().commit();
		em.close();

		em = getOrCreateEntityManager();
		em.getTransaction().begin();
		em.remove( em.find(Incident.class, id) );
		em.getTransaction().commit();
		em.close();
	}

	@Test
	public void testMergeAndBidirOneToOne() throws Exception {
		EntityManager em = getOrCreateEntityManager();
		em.getTransaction().begin();
		Oven oven = new Oven();
		Kitchen kitchen = new Kitchen();
		em.persist( oven );
		em.persist( kitchen );
		kitchen.setOven( oven );
		oven.setKitchen( kitchen );
		em.getTransaction().commit();
		em.close();

		em = getOrCreateEntityManager();
		em.getTransaction().begin();
		oven = em.merge( oven );
		em.getTransaction().commit();
		em.close();

		em = getOrCreateEntityManager();
		em.getTransaction().begin();
		em.remove( em.find( Oven.class, oven.getId() ) );
		em.getTransaction().commit();
		em.close();
	}

	@Override
	public Class[] getAnnotatedClasses() {
		return new Class[]{
				Incident.class,
				IncidentStatus.class,
				Kitchen.class,
				Oven.class
		};
	}
}