01: /* ========================================================================
02: * JCommon : a free general purpose class library for the Java(tm) platform
03: * ========================================================================
04: *
05: * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
06: *
07: * Project Info: http://www.jfree.org/jcommon/index.html
08: *
09: * 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: * IntegerAttributeHandler.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: IntegerAttributeHandler.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: import org.jfree.util.Log;
46:
47: /**
48: * A class that handles the conversion of {@link Integer} attributes to and from an appropriate
49: * {@link String} representation.
50: */
51: public class IntegerAttributeHandler implements AttributeHandler {
52:
53: /**
54: * Creates a new attribute handler.
55: */
56: public IntegerAttributeHandler() {
57: super ();
58: }
59:
60: /**
61: * Converts the attribute to a string.
62: *
63: * @param o the attribute ({@link Integer} expected).
64: *
65: * @return A string representing the integer value.
66: */
67: public String toAttributeValue(final Object o) {
68: try {
69: final Integer in = (Integer) o;
70: return in.toString();
71: } catch (ClassCastException cce) {
72: if (o != null) {
73: Log
74: .debug("ClassCastException: Expected Integer, found "
75: + o.getClass());
76: }
77: throw cce;
78: }
79: }
80:
81: /**
82: * Converts a string to a {@link Integer}.
83: *
84: * @param s the string.
85: *
86: * @return a {@link Integer}.
87: */
88: public Object toPropertyValue(final String s) {
89: return new Integer(s);
90: }
91: }
|