/******************************************************************************* | |
* Copyright (c) 1998, 2013 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 v1.0 and Eclipse Distribution License v. 1.0 | |
* which accompanies this distribution. | |
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html | |
* and the Eclipse Distribution License is available at | |
* http://www.eclipse.org/org/documents/edl-v10.php. | |
* | |
* Contributors: | |
* Oracle - initial API and implementation from Oracle TopLink | |
******************************************************************************/ | |
package org.eclipse.persistence.testing.tests.queries.optimization; | |
import java.util.*; | |
import org.eclipse.persistence.annotations.BatchFetchType; | |
import org.eclipse.persistence.queries.*; | |
import org.eclipse.persistence.sessions.*; | |
import org.eclipse.persistence.testing.framework.*; | |
import org.eclipse.persistence.testing.models.employee.domain.*; | |
/** | |
* Test query opt in uow. | |
*/ | |
public class BatchReadingUnitOfWorkTest extends TestCase { | |
BatchFetchType batchType; | |
public BatchReadingUnitOfWorkTest(BatchFetchType batchType) { | |
setDescription("This test verifies that batch reading works correctly in a unit of work."); | |
this.batchType = batchType; | |
setName(getName() + batchType); | |
} | |
public void test() { | |
getSession().getIdentityMapAccessor().initializeIdentityMaps(); | |
UnitOfWork uow = getSession().acquireUnitOfWork(); | |
ReadAllQuery query = new ReadAllQuery(); | |
query.setBatchFetchType(batchType); | |
query.setReferenceClass(Employee.class); | |
query.addBatchReadAttribute("address"); | |
Vector employees = (Vector)uow.executeQuery(query); | |
((Employee)employees.firstElement()).getAddress().getCity(); | |
uow.commit(); // no changes so rollback not required. | |
} | |
} |