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Java example source code file (JpaWorkManagerTest.java)
The JpaWorkManagerTest.java Java example source code/** * Copyright (C) 2010 Google, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.google.inject.persist.jpa; import com.google.inject.Guice; import com.google.inject.Inject; import com.google.inject.Injector; import com.google.inject.persist.PersistService; import com.google.inject.persist.Transactional; import com.google.inject.persist.UnitOfWork; import junit.framework.TestCase; import org.hibernate.HibernateException; import java.util.Date; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence.Query; /** * @author Dhanji R. Prasanna (dhanji@gmail.com) */ public class JpaWorkManagerTest extends TestCase { private Injector injector; private static final String UNIQUE_TEXT_3 = JpaWorkManagerTest.class.getSimpleName() + "CONSTRAINT_VIOLATING some other unique text" + new Date(); @Override public void setUp() { injector = Guice.createInjector(new JpaPersistModule("testUnit")); //startup persistence injector.getInstance(PersistService.class).start(); } @Override public void tearDown() { try { injector.getInstance(EntityManagerFactory.class).close(); } catch(HibernateException ex) { // Expected if the persist service has already been stopped. } } public void testWorkManagerInSession() { injector.getInstance(UnitOfWork.class).begin(); try { injector.getInstance(TransactionalObject.class).runOperationInTxn(); } finally { injector.getInstance(UnitOfWork.class).end(); } injector.getInstance(UnitOfWork.class).begin(); injector.getInstance(EntityManager.class).getTransaction().begin(); try { final Query query = injector.getInstance(EntityManager.class) .createQuery("select e from JpaTestEntity as e where text = :text"); query.setParameter("text", UNIQUE_TEXT_3); final Object o = query.getSingleResult(); assertNotNull("no result!!", o); assertTrue("Unknown type returned " + o.getClass(), o instanceof JpaTestEntity); JpaTestEntity ent = (JpaTestEntity) o; assertEquals("Incorrect result returned or not persisted properly" + ent.getText(), UNIQUE_TEXT_3, ent.getText()); } finally { injector.getInstance(EntityManager.class).getTransaction().commit(); injector.getInstance(UnitOfWork.class).end(); } } public void testCloseMoreThanOnce() { injector.getInstance(PersistService.class).stop(); try { injector.getInstance(PersistService.class).stop(); fail(); } catch (IllegalStateException e) { // Ignored. } } public static class TransactionalObject { @Inject EntityManager em; @Transactional public void runOperationInTxn() { JpaTestEntity testEntity = new JpaTestEntity(); testEntity.setText(UNIQUE_TEXT_3); em.persist(testEntity); } @Transactional public void runOperationInTxnError() { JpaTestEntity testEntity = new JpaTestEntity(); testEntity.setText(UNIQUE_TEXT_3 + "transient never in db!" + hashCode()); em.persist(testEntity); } } } Other Java examples (source code examples)Here is a short list of links related to this Java JpaWorkManagerTest.java source code file: |
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