/*******************************************************************************
 * Copyright (c) 1998, 2009 Oracle. 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.performance.writing;

import org.eclipse.persistence.expressions.*;
import org.eclipse.persistence.sessions.*;
import org.eclipse.persistence.testing.models.performance.Address;
import org.eclipse.persistence.testing.tests.performance.PerformanceTest;

/**
 * This tests the performance of unit of work updates.
 * Its purpose is to compare the test result with previous release/label results.
 * It also provides a useful test for profiling performance.
 */
public class UpdateAddressUnitOfWorkTest extends PerformanceTest {
    protected Address address;

    public UpdateAddressUnitOfWorkTest() {
        setDescription("This tests the performance of unit of work updates.");
    }

    /**
     * Find any employee.
     */
    public void setup() {
        super.setup();
        Expression expression = new ExpressionBuilder().get("postalCode").equal("L5J2B5");
        address = (Address)getSession().readObject(Address.class, expression);
    }

    /**
     * Read address and clear the cache, test database read.
     */
    public void test() throws Exception {
        super.test();
        UnitOfWork uow = getSession().acquireUnitOfWork();
        Address address = (Address)uow.readObject(this.address);
        if (address.getCity().equals("Toronto")) {
            address.setCity("Ottawa");
        } else {
            address.setCity("Toronto");
        }
        uow.commit();
    }
}
