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Java example source code file (ManualLocalTransactionsWithCustomMatcherTest.java)
The ManualLocalTransactionsWithCustomMatcherTest.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 java.util.Date; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; /** * Created with IntelliJ IDEA. On: 2/06/2007 * * For instance, a session-per-request strategy will control the opening and closing of the EM at * its own (manual) discretion. As opposed to a transactional unit of work. * * @author Dhanji R. Prasanna (dhanji@gmail.com) * @since 1.0 */ public class ManualLocalTransactionsWithCustomMatcherTest extends TestCase { private Injector injector; private static final String UNIQUE_TEXT = "some unique text" + new Date(); private static final String UNIQUE_TEXT_2 = "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() { injector.getInstance(EntityManagerFactory.class).close(); } public void testSimpleCrossTxnWork() { //pretend that the request was started here EntityManager em = injector.getInstance(EntityManager.class); JpaTestEntity entity = injector .getInstance(ManualLocalTransactionsWithCustomMatcherTest.TransactionalObject.class) .runOperationInTxn(); injector.getInstance(ManualLocalTransactionsWithCustomMatcherTest.TransactionalObject.class) .runOperationInTxn2(); //persisted entity should remain in the same em (which should still be open) assertTrue("EntityManager appears to have been closed across txns!", injector.getInstance(EntityManager.class).contains(entity)); assertTrue("EntityManager appears to have been closed across txns!", em.contains(entity)); assertTrue("EntityManager appears to have been closed across txns!", em.isOpen()); injector.getInstance(UnitOfWork.class).end(); //try to query them back out em = injector.getInstance(EntityManager.class); assertNotNull(em.createQuery("from JpaTestEntity where text = :text") .setParameter("text", UNIQUE_TEXT).getSingleResult()); assertNotNull(em.createQuery("from JpaTestEntity where text = :text") .setParameter("text", UNIQUE_TEXT_2).getSingleResult()); em.close(); } public static class TransactionalObject { @Inject EntityManager em; @Transactional public JpaTestEntity runOperationInTxn() { JpaTestEntity entity = new JpaTestEntity(); entity.setText(UNIQUE_TEXT); em.persist(entity); return entity; } @Transactional public void runOperationInTxn2() { JpaTestEntity entity = new JpaTestEntity(); entity.setText(UNIQUE_TEXT_2); em.persist(entity); } } } Other Java examples (source code examples)Here is a short list of links related to this Java ManualLocalTransactionsWithCustomMatcherTest.java source code file: |
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