| /* |
| * Copyright (c) 1998, 2021 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // Oracle - initial API and implementation from Oracle TopLink |
| package org.eclipse.persistence.testing.tests.unitofwork.transactionisolation; |
| |
| import org.eclipse.persistence.queries.ReadObjectQuery; |
| import org.eclipse.persistence.sessions.UnitOfWork; |
| import org.eclipse.persistence.testing.framework.AutoVerifyTestCase; |
| import org.eclipse.persistence.testing.models.employee.domain.Employee; |
| |
| |
| /** |
| * Tests the Session read refactoring / reading through the write connection |
| * properly feature. |
| * <p> |
| * Tests that if I create a new object in the UnitOfWork and then writeChanges, |
| * and then read the object back in via the UnitOfWork, still nothing is |
| * placed in the shared cache. |
| * @author smcritch |
| */ |
| public class TransactionIsolationNoNewObjectsTest extends AutoVerifyTestCase { |
| UnitOfWork unitOfWork; |
| |
| @Override |
| protected void setup() throws Exception { |
| getSession().getIdentityMapAccessor().initializeAllIdentityMaps(); |
| unitOfWork = getSession().acquireUnitOfWork(); |
| } |
| |
| @Override |
| public void reset() throws Exception { |
| if (unitOfWork != null) { |
| getSession().getIdentityMapAccessor().initializeAllIdentityMaps(); |
| unitOfWork.release(); |
| unitOfWork = null; |
| } |
| } |
| |
| @Override |
| public void test() { |
| Employee employee = new Employee(); |
| |
| // no need to set attributes. |
| Employee newClone = (Employee)unitOfWork.registerObject(employee); |
| |
| unitOfWork.writeChanges(); |
| |
| // employee should now have primary key set, so can try reading it in |
| // unit of work. |
| // However can not do reads after write changes, so get a unitofwork against |
| // the same write connection, and read from there. |
| UnitOfWork parallelUow = unitOfWork.getParent().acquireUnitOfWork(); |
| parallelUow.beginEarlyTransaction(); |
| |
| try { |
| Employee newCloneInParallelUow = (Employee)parallelUow.readObject(newClone); |
| strongAssert(newCloneInParallelUow != null, |
| "As the parallel Uow shares the same write connection, should " + |
| "be able to see parallel objects."); |
| } finally { |
| parallelUow.release(); |
| } |
| |
| ReadObjectQuery cacheQuery = new ReadObjectQuery(Employee.class); |
| cacheQuery.checkCacheOnly(); |
| Employee original = (Employee)getSession().executeQuery(cacheQuery); |
| |
| strongAssert(original == null, |
| "Reading back a new object from the write connection should " + "not have cached objects in the shared cache. " + |
| original); |
| } |
| } |