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Diffstat (limited to 'java-hibernate/src/ch/asynk/hibernate/jpa/HibernateJPATest.java')
-rw-r--r-- | java-hibernate/src/ch/asynk/hibernate/jpa/HibernateJPATest.java | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/java-hibernate/src/ch/asynk/hibernate/jpa/HibernateJPATest.java b/java-hibernate/src/ch/asynk/hibernate/jpa/HibernateJPATest.java new file mode 100644 index 0000000..727d706 --- /dev/null +++ b/java-hibernate/src/ch/asynk/hibernate/jpa/HibernateJPATest.java @@ -0,0 +1,73 @@ +/* + * Hibernate, Relational Persistence for Idiomatic Java + * + * Copyright (c) 2010, Red Hat Inc. or third-party contributors as + * indicated by the @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 ch.asynk.hibernate.jpa; + +import java.util.Date; +import java.util.List; +import javax.persistence.EntityManager; +import javax.persistence.EntityManagerFactory; +import javax.persistence.Persistence; + +import junit.framework.TestCase; + +/** + * Illustrates basic use of Hibernate as a JPA provider. + * + * @author Steve Ebersole + */ +public class HibernateJPATest extends TestCase { + private EntityManagerFactory entityManagerFactory; + + @Override + protected void setUp() throws Exception { + // like discussed with regards to SessionFactory, an EntityManagerFactory is set up once for an application + // IMPORTANT: notice how the name here matches the name we gave the persistence-unit in persistence.xml! + entityManagerFactory = Persistence.createEntityManagerFactory( "ch.asynk.hibernate.jpa" ); + } + + @Override + protected void tearDown() throws Exception { + entityManagerFactory.close(); + } + + public void testBasicUsage() { + // create a couple of events... + EntityManager entityManager = entityManagerFactory.createEntityManager(); + entityManager.getTransaction().begin(); + entityManager.persist( new EventJPA( "Our very first event!", new Date() ) ); + entityManager.persist( new EventJPA( "A follow up event", new Date() ) ); + entityManager.getTransaction().commit(); + entityManager.close(); + + // now lets pull events from the database and list them + entityManager = entityManagerFactory.createEntityManager(); + entityManager.getTransaction().begin(); + List<ch.asynk.hibernate.jpa.EventJPA> result = entityManager.createQuery( "from ch.asynk.hibernate.jpa.EventJPA", ch.asynk.hibernate.jpa.EventJPA.class ).getResultList(); + for ( EventJPA event : result ) { + System.out.println( "EventJPA (" + event.getDate() + ") : " + event.getTitle() ); + } + entityManager.getTransaction().commit(); + entityManager.close(); + } +} |