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JCommon is a free general purpose Java class library that is used in several projects at www.jfree.org, including JFreeChart and JFreeReport.
/* ========================================================================
* JCommon : a free general purpose class library for the Java(tm) platform
* ========================================================================
*
* (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jcommon/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* -------------------------------
* CharacterObjectDescription.java
* -------------------------------
* (C)opyright 2003, 2004, by Thomas Morgner and Contributors.
*
* Original Author: Thomas Morgner;
* Contributor(s): David Gilbert (for Object Refinery Limited);
*
* $Id: CharacterObjectDescription.java,v 1.3 2005/11/14 10:59:44 mungady Exp $
*
* Changes (from 19-Feb-2003)
* -------------------------
* 19-Feb-2003 : Added standard header and Javadocs (DG);
* 29-Apr-2003 : Distilled from the JFreeReport project and moved into JCommon
*
*/
package org.jfree.xml.factory.objects;
/**
* An object-description for a Character object.
*
* @author Thomas Morgner
*/
public class CharacterObjectDescription extends AbstractObjectDescription {
/**
* Creates a new object description.
*/
public CharacterObjectDescription() {
super(Character.class);
setParameterDefinition("value", String.class);
}
/**
* Creates a new object (Character) based on this description object.
*
* @return The Character object.
*/
public Object createObject() {
final String o = (String) getParameter("value");
if (o == null) {
return null;
}
if (o.length() > 0) {
return new Character(o.charAt(0));
}
else {
return null;
}
}
/**
* Sets the parameters of this description object to match the supplied object.
*
* @param o the object (should be an instance of Character).
* @throws ObjectFactoryException if there is a
* problem while reading the properties of the given object.
*/
public void setParameterFromObject(final Object o) throws ObjectFactoryException {
if (!(o instanceof Character)) {
throw new ObjectFactoryException("The given object is no java.lang.Character.");
}
setParameter("value", String.valueOf(o));
}
/**
* Tests for equality.
*
* @param o the object to test.
*
* @return A boolean.
*/
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (!(o instanceof AbstractObjectDescription)) {
return false;
}
final AbstractObjectDescription abstractObjectDescription = (AbstractObjectDescription) o;
if (Character.TYPE.equals(abstractObjectDescription.getObjectClass())) {
return true;
}
if (Character.class.equals(abstractObjectDescription.getObjectClass())) {
return true;
}
return false;
}
/**
* Returns a hash code for the object.
*
* @return The hash code.
*/
public int hashCode() {
return getObjectClass().hashCode();
}
}