1 /*
2 * Redistribution and use of this software and associated documentation
3 * ("Software"), with or without modification, are permitted provided
4 * that the following conditions are met:
5 *
6 * 1. Redistributions of source code must retain copyright
7 * statements and notices. Redistributions must also contain a
8 * copy of this document.
9 *
10 * 2. Redistributions in binary form must reproduce the
11 * above copyright notice, this list of conditions and the
12 * following disclaimer in the documentation and/or other
13 * materials provided with the distribution.
14 *
15 * 3. The name "Exolab" must not be used to endorse or promote
16 * products derived from this Software without prior written
17 * permission of Intalio, Inc. For written permission,
18 * please contact info@exolab.org.
19 *
20 * 4. Products derived from this Software may not be called "Exolab"
21 * nor may "Exolab" appear in their names without prior written
22 * permission of Intalio, Inc. Exolab is a registered
23 * trademark of Intalio, Inc.
24 *
25 * 5. Due credit should be given to the Exolab Project
26 * (http://www.exolab.org/).
27 *
28 * THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS
29 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
32 * INTALIO, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39 * OF THE POSSIBILITY OF SUCH DAMAGE.
40 *
41 * Copyright 2004 (C) Intalio, Inc. All Rights Reserved.
42 *
43 * $Id$
44 */
45 package org.exolab.castor.xml.handlers;
46
47 import org.exolab.castor.mapping.FieldHandler;
48 import org.exolab.castor.mapping.GeneralizedFieldHandler;
49
50 /**
51 * An implementation of GeneralizedFieldHandler that simply calls
52 * Object#toString() in the conversion methods.
53 *
54 * @author <a href="kvisco@intalio.com">Keith Visco</a>
55 * @version $Revision$ $Date: 2005-02-28 17:53:23 -0700 (Mon, 28 Feb 2005) $
56 */
57 public class ToStringFieldHandler extends GeneralizedFieldHandler {
58
59 /** The class type for this FieldHandler. */
60 private final Class _type;
61
62 /**
63 * Creates a new ToStringFieldHandler.
64 *
65 * @param type the class type to create the FieldHandler for
66 */
67 public ToStringFieldHandler(final Class type) {
68 this(type, null);
69 } //-- ToStringFieldHandler
70
71 /**
72 * Creates a new ToStringFieldHandler.
73 *
74 * @param type the class type to create the FieldHandler for
75 * @param handler the FieldHandler to wrap
76 */
77 public ToStringFieldHandler(final Class type, final FieldHandler handler) {
78 super();
79 if (type == null) {
80 throw new IllegalArgumentException("The argument 'type' must not be null.");
81 }
82 _type = type;
83 if (handler != null) {
84 setFieldHandler(handler);
85 }
86 } //-- ToStringFieldHandler
87
88 /**
89 * {@inheritDoc}
90 * @see org.exolab.castor.mapping.GeneralizedFieldHandler#convertUponGet(java.lang.Object)
91 */
92 public Object convertUponGet(final Object value) {
93 if (value == null) {
94 return null;
95 }
96 return value.toString();
97 } //-- convertUponGet
98
99 /**
100 * {@inheritDoc}
101 * @see org.exolab.castor.mapping.GeneralizedFieldHandler#convertUponSet(java.lang.Object)
102 */
103 public Object convertUponSet(final Object value) {
104 if (value == null) {
105 return null;
106 }
107 return value.toString();
108 } //-- convertUponSet;
109
110 /**
111 * {@inheritDoc}
112 * @see org.exolab.castor.mapping.GeneralizedFieldHandler#getFieldType()
113 */
114 public Class getFieldType() {
115 return _type;
116 } //-- getFieldType
117
118 } //-- ValueOfFieldHandler