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 import java.util.Date; 26 import javax.persistence.EntityManager; 27 import javax.persistence.EntityManagerFactory; 28 import junit.framework.TestCase; 29 30 /** 31 * Created with IntelliJ IDEA. On: 2/06/2007 32 * 33 * <p>For instance, a session-per-request strategy will control the opening and closing of the EM at 34 * its own (manual) discretion. As opposed to a transactional unit of work. 35 * 36 * @author Dhanji R. Prasanna (dhanji@gmail.com) 37 * @since 1.0 38 */ 39 40 public class ManualLocalTransactionsWithCustomMatcherTest extends TestCase { 41 private Injector injector; 42 private static final String UNIQUE_TEXT = "some unique text" + new Date(); 43 private static final String UNIQUE_TEXT_2 = "some other unique text" + new Date(); 44 45 @Override setUp()46 public void setUp() { 47 injector = Guice.createInjector(new JpaPersistModule("testUnit")); 48 49 //startup persistence 50 injector.getInstance(PersistService.class).start(); 51 } 52 53 @Override tearDown()54 public void tearDown() { 55 injector.getInstance(EntityManagerFactory.class).close(); 56 } 57 testSimpleCrossTxnWork()58 public void testSimpleCrossTxnWork() { 59 //pretend that the request was started here 60 EntityManager em = injector.getInstance(EntityManager.class); 61 62 JpaTestEntity entity = 63 injector 64 .getInstance(ManualLocalTransactionsWithCustomMatcherTest.TransactionalObject.class) 65 .runOperationInTxn(); 66 injector 67 .getInstance(ManualLocalTransactionsWithCustomMatcherTest.TransactionalObject.class) 68 .runOperationInTxn2(); 69 70 //persisted entity should remain in the same em (which should still be open) 71 assertTrue( 72 "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( 82 em.createQuery("from JpaTestEntity where text = :text") 83 .setParameter("text", UNIQUE_TEXT) 84 .getSingleResult()); 85 assertNotNull( 86 em.createQuery("from JpaTestEntity where text = :text") 87 .setParameter("text", UNIQUE_TEXT_2) 88 .getSingleResult()); 89 em.close(); 90 } 91 92 public static class TransactionalObject { 93 @Inject EntityManager em; 94 95 @Transactional runOperationInTxn()96 public JpaTestEntity runOperationInTxn() { 97 JpaTestEntity entity = new JpaTestEntity(); 98 entity.setText(UNIQUE_TEXT); 99 em.persist(entity); 100 101 return entity; 102 } 103 104 @Transactional runOperationInTxn2()105 public void runOperationInTxn2() { 106 JpaTestEntity entity = new JpaTestEntity(); 107 entity.setText(UNIQUE_TEXT_2); 108 em.persist(entity); 109 } 110 } 111 } 112