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 * DoubleAttributeHandler.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: DoubleAttributeHandler.java,v 1.2 2005/10/18 13:30:16 mungady Exp $
036 *
037 * Changes 
038 * -------
039 * 24.09.2003 : Initial version
040 *  
041 */
042
043package org.jfree.xml.attributehandlers;
044
045/**
046 * A class that handles the conversion of {@link Double} attributes to and from an appropriate
047 * {@link String} representation.
048 */
049public class DoubleAttributeHandler implements AttributeHandler {
050
051    /**
052     * Creates a new attribute handler.
053     */
054    public DoubleAttributeHandler() {
055        super();
056    }
057
058    /**
059     * Converts the attribute to a string.
060     * 
061     * @param o  the attribute ({@link Double} expected).
062     * 
063     * @return A string representing the {@link Double} value.
064     */
065    public String toAttributeValue(final Object o) {
066        final Double in = (Double) o;
067        return in.toString();
068    }
069
070    /**
071     * Converts a string to a {@link Double}.
072     * 
073     * @param s  the string.
074     * 
075     * @return a {@link Double}.
076     */
077    public Object toPropertyValue(final String s) {
078        return new Double(s);
079    }
080    
081}