Source for org.jfree.util.BooleanList

   1: /* ========================================================================
   2:  * JCommon : a free general purpose class library for the Java(tm) platform
   3:  * ========================================================================
   4:  *
   5:  * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
   6:  * 
   7:  * Project Info:  http://www.jfree.org/jcommon/index.html
   8:  *
   9:  * This library is free software; you can redistribute it and/or modify it 
  10:  * under the terms of the GNU Lesser General Public License as published by 
  11:  * the Free Software Foundation; either version 2.1 of the License, or 
  12:  * (at your option) any later version.
  13:  *
  14:  * This library is distributed in the hope that it will be useful, but 
  15:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
  16:  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
  17:  * License for more details.
  18:  *
  19:  * You should have received a copy of the GNU Lesser General Public
  20:  * License along with this library; if not, write to the Free Software
  21:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
  22:  * USA.  
  23:  *
  24:  * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
  25:  * in the United States and other countries.]
  26:  *
  27:  * ----------------
  28:  * BooleanList.java
  29:  * ----------------
  30:  * (C) Copyright 2003, 2004, by Object Refinery Limited.
  31:  *
  32:  * Original Author:  David Gilbert (for Object Refinery Limited);
  33:  * Contributor(s):   -;
  34:  *
  35:  * $Id: BooleanList.java,v 1.5 2005/10/18 13:24:19 mungady Exp $
  36:  *
  37:  * Changes
  38:  * -------
  39:  * 11-Jun-2003 : Version 1 (DG);
  40:  * 23-Jul-2003 : Renamed BooleanTable --> BooleanList and now extends 
  41:  *               ObjectList (DG);
  42:  * 13-Aug-2003 : Now extends new class AbstractObjectList (DG);
  43:  * 21-Oct-2004 : Removed duplicate implementation of Cloneable and Serializable,
  44:  *               AbstractObjectList already implements that.
  45:  */
  46: 
  47: package org.jfree.util;
  48: 
  49: /**
  50:  * A list of <code>Boolean</code> objects.
  51:  *
  52:  * @author David Gilbert
  53:  */
  54: public class BooleanList extends AbstractObjectList {
  55: 
  56:     /** For serialization. */
  57:     private static final long serialVersionUID = -8543170333219422042L;
  58:     
  59:     /**
  60:      * Creates a new list.
  61:      */
  62:     public BooleanList() {
  63:     }
  64: 
  65:     /**
  66:      * Returns a {@link Boolean} from the list.
  67:      *
  68:      * @param index the index (zero-based).
  69:      *
  70:      * @return a {@link Boolean} from the list.
  71:      */
  72:     public Boolean getBoolean(final int index) {
  73:         return (Boolean) get(index);
  74:     }
  75: 
  76:     /**
  77:      * Sets the value for an item in the list.  The list is expanded if 
  78:      * necessary.
  79:      *
  80:      * @param index  the index (zero-based).
  81:      * @param b  the boolean.
  82:      */
  83:     public void setBoolean(final int index, final Boolean b) {
  84:         set(index, b);
  85:     }
  86: 
  87:     /**
  88:      * Tests the list for equality with another object (typically also a list).
  89:      *
  90:      * @param o  the other object.
  91:      *
  92:      * @return A boolean.
  93:      */
  94:     public boolean equals(final Object o) {
  95: 
  96:         if (o instanceof BooleanList) {
  97:             return super.equals(o);
  98:         }
  99:         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: }