/**
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided
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 *
 * 1. Redistributions of source code must retain copyright
 *    statements and notices.  Redistributions must also contain a
 *    copy of this document.
 *
 * 2. Redistributions in binary form must reproduce the
 *    above copyright notice, this list of conditions and the
 *    following disclaimer in the documentation and/or other
 *    materials provided with the distribution.
 *
 * 3. The name "Exolab" must not be used to endorse or promote
 *    products derived from this Software without prior written
 *    permission of Intalio, Inc.  For written permission,
 *    please contact info@exolab.org.
 *
 * 4. Products derived from this Software may not be called "Exolab"
 *    nor may "Exolab" appear in their names without prior written
 *    permission of Intalio, Inc. Exolab is a registered
 *    trademark of Intalio, Inc.
 *
 * 5. Due credit should be given to the Exolab Project
 *    (http://www.exolab.org/).
 *
 * THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 * INTALIO, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Copyright 2000 (C) Intalio, Inc. All Rights Reserved.
 *
 * $Id: TestColHashSet.java,v 1.2 2005/03/30 09:07:54 wguttmn Exp $
 */


package jdo;


import java.util.HashSet;
import java.util.Iterator;

/**
 * Test object for different collection types.
 */
public class TestColHashSet extends TestCol {

    private HashSet _item;

    public TestColHashSet() {
        super();
    }

    public boolean containsItem( TestItem item ) {
        if ( _item == null || _item.size() == 0 )
            return false;

        return _item.contains( item );
    }

    public void removeItem( TestItem item ) {
        if ( _item != null ) {
            _item.remove( item );
            item.setTestCol( null );
        }
    }

    public int itemSize() {
        if ( _item == null )
            return 0;

        return _item.size();
    }

    public Iterator itemIterator() {
        if ( _item == null || _item.size() == 0 )
            return _emptyItor;

        return _item.iterator();
    }

    public void setItem( HashSet items ) {
        _item = items;
    }

    public HashSet getItem() {
        return _item;
    }

    public void addItem( TestItem item ) {
        if ( _item != null )
            _item = new HashSet();

        _item.add( _item );
        item.setTestCol( this );
    }

}
