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Java > Open Source Codes > org > jfree > xml > attributehandlers > CharacterAttributeHandler


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  * CharacterAttributeHandler.java
29  * ------------------------------
30  * (C)opyright 2003, 2004, by Thomas Morgner and Contributors.
31  *
32  * Original Author: Thomas Morgner;
33  * Contributor(s): David Gilbert (for Object Refinery Limited);
34  *
35  * $Id: CharacterAttributeHandler.java,v 1.2 2005/10/18 13:30:16 mungady Exp $
36  *
37  * Changes
38  * -------
39  * 24.09.2003 : Initial version
40  *
41  */
42
43 package org.jfree.xml.attributehandlers;
44
45 /**
46  * A class that handles the conversion of {@link Character} attributes to and from an appropriate
47  * {@link String} representation.
48  */
49 public class CharacterAttributeHandler implements AttributeHandler {
50
51     /**
52      * Creates a new attribute handler.
53      */
54     public CharacterAttributeHandler() {
55         super();
56     }
57
58     /**
59      * Converts the attribute to a string.
60      *
61      * @param o the attribute ({@link Character} expected).
62      *
63      * @return A string representing the {@link Character} value.
64      */
65     public String JavaDoc toAttributeValue(final Object JavaDoc o) {
66         final Character JavaDoc in = (Character JavaDoc) o;
67         return in.toString();
68     }
69
70     /**
71      * Converts a string to a {@link Character}.
72      *
73      * @param s the string.
74      *
75      * @return a {@link Character}.
76      */
77     public Object JavaDoc toPropertyValue(final String JavaDoc s) {
78         if (s.length() == 0) {
79             throw new RuntimeException JavaDoc("Ugly, no char set!");
80         }
81         return new Character JavaDoc(s.charAt(0));
82     }
83 }
84
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