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: * CharacterObjectDescription.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: CharacterObjectDescription.java,v 1.3 2005/11/14 10:59:44 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>Character</code> object.
048: *
049: * @author Thomas Morgner
050: */
051: public class CharacterObjectDescription extends
052: AbstractObjectDescription {
053:
054: /**
055: * Creates a new object description.
056: */
057: public CharacterObjectDescription() {
058: super (Character.class);
059: setParameterDefinition("value", String.class);
060: }
061:
062: /**
063: * Creates a new object (<code>Character</code>) based on this description object.
064: *
065: * @return The <code>Character</code> object.
066: */
067: public Object createObject() {
068: final String o = (String) getParameter("value");
069: if (o == null) {
070: return null;
071: }
072: if (o.length() > 0) {
073: return new Character(o.charAt(0));
074: } else {
075: return null;
076: }
077: }
078:
079: /**
080: * Sets the parameters of this description object to match the supplied object.
081: *
082: * @param o the object (should be an instance of <code>Character</code>).
083: * @throws ObjectFactoryException if there is a
084: * problem while reading the properties of the given object.
085: */
086: public void setParameterFromObject(final Object o)
087: throws ObjectFactoryException {
088: if (!(o instanceof Character)) {
089: throw new ObjectFactoryException(
090: "The given object is no java.lang.Character.");
091: }
092:
093: setParameter("value", String.valueOf(o));
094: }
095:
096: /**
097: * Tests for equality.
098: *
099: * @param o the object to test.
100: *
101: * @return A boolean.
102: */
103: public boolean equals(final Object o) {
104: if (this == o) {
105: return true;
106: }
107: if (!(o instanceof AbstractObjectDescription)) {
108: return false;
109: }
110:
111: final AbstractObjectDescription abstractObjectDescription = (AbstractObjectDescription) o;
112:
113: if (Character.TYPE.equals(abstractObjectDescription
114: .getObjectClass())) {
115: return true;
116: }
117: if (Character.class.equals(abstractObjectDescription
118: .getObjectClass())) {
119: return true;
120: }
121: return false;
122: }
123:
124: /**
125: * Returns a hash code for the object.
126: *
127: * @return The hash code.
128: */
129: public int hashCode() {
130: return getObjectClass().hashCode();
131: }
132:
133: }
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