Hibernate example source code file (ComponentJoinsTest.java)

This example Hibernate source code file (ComponentJoinsTest.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

baseentitymanagerfunctionaltestcase, class, class, client, client, componentjoinstest, componentjoinstest, entitymanager, override, test, test

The Hibernate ComponentJoinsTest.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2009 by Red Hat Inc and/or its affiliates or by
 * third-party contributors as indicated by either @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.ejb.test.query;

import javax.persistence.EntityManager;

import org.hibernate.ejb.criteria.components.Client;
import org.hibernate.ejb.test.BaseEntityManagerFunctionalTestCase;

import org.junit.Test;

/**
 * Tests related to specifying joins on components (embedded values).
 *
 * @author Steve Ebersole
 */
public class ComponentJoinsTest extends BaseEntityManagerFunctionalTestCase {
	@Override
	public Class[] getAnnotatedClasses() {
		return new Class[] { Client.class };
	}

	@Test
	public void testComponentJoins() {
		// Just checking proper query construction and syntax checking via database query parser...
		EntityManager em = getOrCreateEntityManager();
		em.getTransaction().begin();
		// use it in WHERE
		em.createQuery( "select c from Client c join c.name as n where n.lastName like '%'" ).getResultList();
		// use it in SELECT
		em.createQuery( "select n.lastName from Client c join c.name as n" ).getResultList();
		em.createQuery( "select n from Client c join c.name as n" ).getResultList();
		// use it in ORDER BY
		em.createQuery( "select n from Client c join c.name as n order by n.lastName" ).getResultList();
		em.createQuery( "select n from Client c join c.name as n order by c" ).getResultList();
		em.createQuery( "select n from Client c join c.name as n order by n" ).getResultList();
		em.getTransaction().commit();
		em.close();
	}
}