/*
 * Copyright 2005 The Apache Software Foundation.
 * 
 * Licensed 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 
 * limitations under the License.
 */
 
package org.apache.jdo.tck.query;


import java.util.Collection;
import java.util.Iterator;
import java.util.NoSuchElementException;

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

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

/**
 *<B>Title:</B> Close All
 *<BR>
 *<B>Keywords:</B> query
 *<BR>
 *<B>Assertion ID:</B> A14.6.7-2.
 *<BR>
 *<B>Assertion Description: </B> <code>Query.closeAll()</code> closes all results of <code>execute(...)</code> methods on this <code>Query</code> instance, as in A14.6.7-1.  The <code>Query</code> instance is still valid and can still be used.
 */

public class CloseAll extends QueryTest {

    /** */
    private static final String ASSERTION_FAILED = 
        "Assertion A14.6.7-2 (CloseAll) 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(CloseAll.class);
    }

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

        initDatabase(pm, PCPoint.class);
        runTestCloseAll(pm);

        pm.close();
        pm = null;
    }

    /** */
    void runTestCloseAll(PersistenceManager pm) {
        if (debug) logger.debug("\nExecuting test CloseAll()...");
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();
            Query query = pm.newQuery();
            query.setClass(PCPoint.class);
            query.setCandidates(pm.getExtent(PCPoint.class, false));
        
            Collection results = (Collection)query.execute();
            Iterator resIterator = results.iterator();

            query.closeAll();

            if (resIterator.hasNext()) {
                fail(ASSERTION_FAILED,
                     "Iterator.hasNext() should return false after closing all query results.");
            }
            
            try {
                resIterator.next();
                fail(ASSERTION_FAILED,
                     "Iterator.hasNext() should throw NoSuchElementException after closing all query results.");
            }
            catch (NoSuchElementException ex) {
                // expected exception
            }
            tx.commit();
            tx = null;
        }
        finally {
            if ((tx != null) && tx.isActive())
                tx.rollback();
        }
    }
}