foundation/eclipselink.core.test/src/org/eclipse/persistence/testing/tests/aggregate/AggregateCollectionClearTest.java

/*******************************************************************************
 * 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.aggregate;

import org.eclipse.persistence.testing.framework.*;
import org.eclipse.persistence.sessions.*;

public class AggregateCollectionClearTest extends TransactionalTestCase {
    public Object object;
    public Class cls;

    public AggregateCollectionClearTest(Class cls) {
        this.cls = cls;
        setName(getName() + AgentBuilderHelper.getNameInBrackets(cls));
        setDescription("Verifies that when aggregate collections get cleared that the changes are merged.  CR 3013");
    }

    public void setup() {
        super.setup();
        java.util.Vector objects = getSession().readAllObjects(cls);
        int index = 0;
        while ((index < objects.size()) && ((object == null) || (AgentBuilderHelper.getCustomers(object).get(0) == null))) {
            object = objects.get(index);
            ++index;
        }
    }

    public void test() {
        UnitOfWork uow = getSession().acquireUnitOfWork();
        Object objectClone = uow.readObject(object);
        AgentBuilderHelper.getCustomers(objectClone).clear();
        uow.commit();
    }

    public void verify() {
        Object object1 = getSession().readObject(object);
        if (!AgentBuilderHelper.getCustomers(object1).isEmpty()) {
            throw new TestErrorException("Did not merge change");
        }
    }

    public void reset() {
        super.reset();
    }
}