tck/src/main/java/org/apache/jdo/tck/api/persistencemanager/cache/RefreshAllWithNoParameters.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 * See the License for the specific language governing permissions and 
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package org.apache.jdo.tck.api.persistencemanager.cache;

import javax.jdo.PersistenceManager;
import javax.jdo.Transaction;

import org.apache.jdo.tck.api.persistencemanager.PersistenceManagerTest;
import org.apache.jdo.tck.pc.mylib.PCPoint;
import org.apache.jdo.tck.util.BatchTestRunner;

/**
 *<B>Title:</B> Refresh All With No Parameters
 *<BR>
 *<B>Keywords:</B> cache
 *<BR>
 *<B>Assertion ID:</B> A12.5.1-6.
 *<BR>
 *<B>Assertion Description: </B>
 The <code>PersistenceManager.refreshAll</code> method with no parameters
 causes all transactional instances to be refreshed. Note that this method
 will cause loss of changes made to affected instances by the application
 due to refreshing the contents from the data store.
 The JDO <code>PersistenceManager</code>:
 <UL>
 <LI>loads persistent values from the data store;</LI>
 <LI>loads persistent fields into the instance;</LI>
 <LI>calls the <code>jdoPostLoad</code> method on each persistent instance,
 if the class of the instance implements <code>InstanceCallbacks</code>; and</LI>
 <LI>changes the state of persistent-dirty instances to persistent-clean.</LI>
 </UL>

 */

public class RefreshAllWithNoParameters extends PersistenceManagerTest {
    
    /** */
    private static final String ASSERTION_FAILED = 
        "Assertion A12.5.1-6 (RefreshAllWithNoParameters) failed: ";
    
    /**
     * The <code>main</code> is called when the class
     * is directly executed from the command line.
     * @param args The arguments passed to the program.
     */
    public static void main(String[] args) {
        BatchTestRunner.run(RefreshAllWithNoParameters.class);
    }

    /** */
    public void test() {
        pm = getPM();

        runTestRefreshAll(pm);

        pm.close();
        pm = null;
    }
    
    /**
     * @param pm the PersistenceManager
     */
    private void runTestRefreshAll(PersistenceManager pm) {
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();
            PCPoint p = new PCPoint (100, 200);
            pm.makePersistent(p);
            tx.commit();
            
            tx.begin();
            p.setX(500);
            p.setY(new Integer(800));
            pm.refreshAll();
            int currentX = p.getX();
            Integer currentY = p.getY();
            if ((currentX != 100) || !currentY.equals(new Integer(200))) {
                fail(ASSERTION_FAILED,
                     "RefreshAll expected 100, 200; got " + currentX + ", " + currentY);
            }
            tx.commit();
            tx = null;
        }
        finally {
            if ((tx != null) && tx.isActive())
                tx.rollback();
        }
    }
}