foundation/eclipselink.core.test/src/it/java/org/eclipse/persistence/testing/tests/queries/inmemory/UnitOfWorkConformWithOrderTest.java

/*
 * 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.queries.inmemory;

import java.util.Vector;
import org.eclipse.persistence.testing.models.employee.domain.PhoneNumber;
import org.eclipse.persistence.expressions.Expression;
import org.eclipse.persistence.expressions.ExpressionBuilder;
import org.eclipse.persistence.sessions.UnitOfWork;
import org.eclipse.persistence.queries.ReadAllQuery;
import org.eclipse.persistence.testing.framework.*;

/**
 * Test selecting using an object's primary key to ensure that it does not go to the databaase.
 */
public class UnitOfWorkConformWithOrderTest extends AutoVerifyTestCase {
    public UnitOfWorkConformWithOrderTest() {
        setDescription("Test that the query maintains order for non changed objects.");
    }

    @Override
    public void test() {
        // Make a query an search Number greaterThan "00005"
        ExpressionBuilder phone = new ExpressionBuilder();
        Expression exp = phone.get("areaCode").equal(613);
        ReadAllQuery query = new ReadAllQuery(PhoneNumber.class);
        query.setSelectionCriteria(exp);
        query.conformResultsInUnitOfWork();// set Conforming
        query.addOrdering(phone.get("owner").get("id").descending());
        query.addOrdering(phone.get("type").descending());
        UnitOfWork uow = getSession().acquireUnitOfWork();
        Vector v = (Vector)uow.executeQuery(query);
        Vector v2 = (Vector)uow.executeQuery(query);

        if (!v.equals(v2)) {
            throw new TestErrorException("Order not maintained when conforming:" + v + " != " + v2);
        }
    }
}