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 * BooleanObjectDescription.java
029 * -----------------------------
030 * (C)opyright 2003, 2004, by Thomas Morgner and Contributors.
031 *
032 * Original Author: Thomas Morgner;
033 * Contributor(s): David Gilbert (for Object Refinery Limited);
034 *
035 * $Id: BooleanObjectDescription.java,v 1.3 2005/11/14 10:59:16 mungady Exp $
036 *
037 * Changes (from 19-Feb-2003)
038 * -------------------------
039 * 19-Feb-2003 : Added standard header and Javadocs (DG);
040 * 29-Apr-2003 : Distilled from the JFreeReport project and moved into JCommon
041 *
042 */
043
044 package org.jfree.xml.factory.objects;
045
046 /**
047 * An object-description for a <code>Boolean</code> object.
048 *
049 * @author Thomas Morgner
050 */
051 public class BooleanObjectDescription extends AbstractObjectDescription {
052
053 /**
054 * Creates a new object description.
055 */
056 public BooleanObjectDescription() {
057 super(Boolean.class);
058 setParameterDefinition("value", String.class);
059 }
060
061 /**
062 * Creates a new <code>Boolean</code> based on the settings of this description object.
063 *
064 * @return A <code>Boolean</code>.
065 */
066 public Object createObject() {
067 final String o = (String) getParameter("value");
068 return Boolean.valueOf(o);
069 }
070
071 /**
072 * Sets the description object parameters to match the supplied object
073 * (which should be an instance of <code>Boolean</code>.
074 *
075 * @param o the object.
076 * @throws ObjectFactoryException if there is a problem while reading the
077 * properties of the given object.
078 */
079 public void setParameterFromObject(final Object o) throws ObjectFactoryException {
080 if (!(o instanceof Boolean)) {
081 throw new ObjectFactoryException("The given object is no java.lang.Boolean. ");
082 }
083 setParameter("value", String.valueOf(o));
084 }
085
086 /**
087 * Tests for equality.
088 *
089 * @param o the object to test.
090 *
091 * @return A boolean.
092 */
093 public boolean equals(final Object o) {
094 if (this == o) {
095 return true;
096 }
097 if (!(o instanceof AbstractObjectDescription)) {
098 return false;
099 }
100
101 final AbstractObjectDescription abstractObjectDescription = (AbstractObjectDescription) o;
102
103 if (Boolean.TYPE.equals(abstractObjectDescription.getObjectClass())) {
104 return true;
105 }
106 if (Boolean.class.equals(abstractObjectDescription.getObjectClass())) {
107 return true;
108 }
109 return false;
110 }
111
112 /**
113 * Returns a hash code.
114 *
115 * @return A hash code.
116 */
117 public int hashCode() {
118 return getObjectClass().hashCode();
119 }
120
121 }