1 /** 2 * Copyright (C) 2010 Google, Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.inject.persist.jpa; 18 19 import com.google.inject.Guice; 20 import com.google.inject.Inject; 21 import com.google.inject.Injector; 22 import com.google.inject.persist.PersistService; 23 import com.google.inject.persist.Transactional; 24 import com.google.inject.persist.UnitOfWork; 25 26 import junit.framework.TestCase; 27 28 import java.util.Date; 29 30 import javax.persistence.EntityManager; 31 import javax.persistence.EntityManagerFactory; 32 33 /** 34 * Created with IntelliJ IDEA. On: 2/06/2007 35 * 36 * For instance, a session-per-request strategy will control the opening and closing of the EM at 37 * its own (manual) discretion. As opposed to a transactional unit of work. 38 * 39 * @author Dhanji R. Prasanna (dhanji@gmail.com) 40 * @since 1.0 41 */ 42 43 public class ManualLocalTransactionsWithCustomMatcherTest extends TestCase { 44 private Injector injector; 45 private static final String UNIQUE_TEXT = "some unique text" + new Date(); 46 private static final String UNIQUE_TEXT_2 = "some other unique text" + new Date(); 47 48 @Override setUp()49 public void setUp() { 50 injector = Guice.createInjector(new JpaPersistModule("testUnit")); 51 52 //startup persistence 53 injector.getInstance(PersistService.class).start(); 54 } 55 56 @Override tearDown()57 public void tearDown() { 58 injector.getInstance(EntityManagerFactory.class).close(); 59 } 60 testSimpleCrossTxnWork()61 public void testSimpleCrossTxnWork() { 62 //pretend that the request was started here 63 EntityManager em = injector.getInstance(EntityManager.class); 64 65 JpaTestEntity entity = injector 66 .getInstance(ManualLocalTransactionsWithCustomMatcherTest.TransactionalObject.class) 67 .runOperationInTxn(); 68 injector.getInstance(ManualLocalTransactionsWithCustomMatcherTest.TransactionalObject.class) 69 .runOperationInTxn2(); 70 71 //persisted entity should remain in the same em (which should still be open) 72 assertTrue("EntityManager appears to have been closed across txns!", 73 injector.getInstance(EntityManager.class).contains(entity)); 74 assertTrue("EntityManager appears to have been closed across txns!", em.contains(entity)); 75 assertTrue("EntityManager appears to have been closed across txns!", em.isOpen()); 76 77 injector.getInstance(UnitOfWork.class).end(); 78 79 //try to query them back out 80 em = injector.getInstance(EntityManager.class); 81 assertNotNull(em.createQuery("from JpaTestEntity where text = :text") 82 .setParameter("text", UNIQUE_TEXT).getSingleResult()); 83 assertNotNull(em.createQuery("from JpaTestEntity where text = :text") 84 .setParameter("text", UNIQUE_TEXT_2).getSingleResult()); 85 em.close(); 86 } 87 88 public static class TransactionalObject { 89 @Inject EntityManager em; 90 91 @Transactional runOperationInTxn()92 public JpaTestEntity runOperationInTxn() { 93 JpaTestEntity entity = new JpaTestEntity(); 94 entity.setText(UNIQUE_TEXT); 95 em.persist(entity); 96 97 return entity; 98 } 99 100 @Transactional runOperationInTxn2()101 public void runOperationInTxn2() { 102 JpaTestEntity entity = new JpaTestEntity(); 103 entity.setText(UNIQUE_TEXT_2); 104 em.persist(entity); 105 } 106 107 } 108 } 109