001/* ========================================================================
002 * JCommon : a free general purpose class library for the Java(tm) platform
003 * ========================================================================
004 *
005 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
006 * 
007 * Project Info:  http://www.jfree.org/jcommon/index.html
008 *
009 * This library is free software; you can redistribute it and/or modify it 
010 * under the terms of the GNU Lesser General Public License as published by 
011 * the Free Software Foundation; either version 2.1 of the License, or 
012 * (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but 
015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
017 * License for more details.
018 *
019 * You should have received a copy of the GNU Lesser General Public
020 * License along with this library; if not, write to the Free Software
021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
022 * USA.  
023 *
024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
025 * in the United States and other countries.]
026 *
027 * ----------------
028 * BooleanList.java
029 * ----------------
030 * (C) Copyright 2003, 2004, by Object Refinery Limited.
031 *
032 * Original Author:  David Gilbert (for Object Refinery Limited);
033 * Contributor(s):   -;
034 *
035 * $Id: BooleanList.java,v 1.5 2005/10/18 13:24:19 mungady Exp $
036 *
037 * Changes
038 * -------
039 * 11-Jun-2003 : Version 1 (DG);
040 * 23-Jul-2003 : Renamed BooleanTable --> BooleanList and now extends 
041 *               ObjectList (DG);
042 * 13-Aug-2003 : Now extends new class AbstractObjectList (DG);
043 * 21-Oct-2004 : Removed duplicate implementation of Cloneable and Serializable,
044 *               AbstractObjectList already implements that.
045 */
046
047package org.jfree.util;
048
049/**
050 * A list of <code>Boolean</code> objects.
051 *
052 * @author David Gilbert
053 */
054public class BooleanList extends AbstractObjectList {
055
056    /** For serialization. */
057    private static final long serialVersionUID = -8543170333219422042L;
058    
059    /**
060     * Creates a new list.
061     */
062    public BooleanList() {
063    }
064
065    /**
066     * Returns a {@link Boolean} from the list.
067     *
068     * @param index the index (zero-based).
069     *
070     * @return a {@link Boolean} from the list.
071     */
072    public Boolean getBoolean(final int index) {
073        return (Boolean) get(index);
074    }
075
076    /**
077     * Sets the value for an item in the list.  The list is expanded if 
078     * necessary.
079     *
080     * @param index  the index (zero-based).
081     * @param b  the boolean.
082     */
083    public void setBoolean(final int index, final Boolean b) {
084        set(index, b);
085    }
086
087    /**
088     * Tests the list for equality with another object (typically also a list).
089     *
090     * @param o  the other object.
091     *
092     * @return A boolean.
093     */
094    public boolean equals(final Object o) {
095
096        if (o instanceof BooleanList) {
097            return super.equals(o);
098        }
099        return false;
100    }
101
102    /**
103     * Returns a hash code value for the object.
104     *
105     * @return the hashcode
106     */
107    public int hashCode() {
108        return super.hashCode();
109    }
110}