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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 2005 (C) Intalio, Inc. All Rights Reserved.
42   *
43   * $Id$
44   * 
45   * Created on Jan 15, 2005 by kvisco
46   *
47   */
48  
49  package org.exolab.castor.mapping.handlers;
50  
51  import org.exolab.castor.mapping.AbstractFieldHandler;
52  
53  /**
54   * A dummy FieldHandler for "transient" fields. This allows us
55   * to create a FieldDescriptor, but not use a real FieldHandler.
56   * 
57   * @author <a href="mailto:kvisco-at-intalio.com">kvisco</a>
58   * @version $Revision$ $Date: 2005-01-17 14:35:07 -0700 (Mon, 17 Jan 2005) $
59   */
60  public class TransientFieldHandler<T> extends AbstractFieldHandler<T> {
61      
62      public TransientFieldHandler() {
63      	super();
64      }
65      
66      public T getValue(Object target) {
67      	return null;
68      }
69      
70      public T newInstance(Object target) {
71         return null; 
72      }
73      
74      public Object newInstance(Object target, Object[] args) {
75      	return null;
76      }
77      
78      public void setValue(Object target, Object value) {
79      	//-- do nothing
80      }
81      
82      public void resetValue(Object target) {
83      	//-- do nothing
84      }
85  
86  }