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 2003-2004 (C) Intalio, Inc. All Rights Reserved.
42 *
43 * $Id$
44 */
45 package org.exolab.castor.xml.descriptors;
46
47 import org.exolab.castor.mapping.FieldHandler;
48 import org.exolab.castor.xml.NodeType;
49 import org.exolab.castor.xml.XMLFieldHandler;
50 import org.exolab.castor.xml.util.XMLClassDescriptorImpl;
51 import org.exolab.castor.xml.util.XMLFieldDescriptorImpl;
52
53 /**
54 * The default class descriptor for Enumerations that are passed in as the
55 * root-level class, this is really only useful for marshaling, as Enumerations
56 * are immutable.
57 *
58 * @author <a href="mailto:kvisco-at-intalio.com">Keith Visco</a>
59 * @version $Revision$ $Date: 2004-12-16 22:49:25 -0700 (Thu, 16 Dec 2004) $
60 */
61 public class EnumerationDescriptor extends XMLClassDescriptorImpl {
62
63 //----------------/
64 //- Constructors -/
65 //----------------/
66
67 /**
68 * Creates a new EnumerationDescriptor.
69 */
70 public EnumerationDescriptor() {
71 super(java.util.Enumeration.class);
72 //-- create element descriptor
73
74 XMLFieldDescriptorImpl desc = new XMLFieldDescriptorImpl(Object.class,
75 "_elements", null, NodeType.Element);
76
77 FieldHandler handler = (new XMLFieldHandler() {
78
79 /**
80 * {@inheritDoc}
81 */
82 public Object getValue(final Object object) throws IllegalStateException {
83 return object;
84 }
85
86 /**
87 * {@inheritDoc}
88 */
89 public void setValue(final Object object, final Object value)
90 throws IllegalStateException, IllegalArgumentException {
91 //-- do nothing since enumerations are immutable.
92 }
93
94 /**
95 * {@inheritDoc}
96 */
97 public Object newInstance(final Object parent) {
98 //-- not used
99 return null;
100 }
101 });
102 desc.setHandler(handler);
103 desc.setMultivalued(true);
104
105 addFieldDescriptor(desc);
106 } //-- EnumerationDescriptor()
107
108 } //-- EnumerationDescriptor