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1   /**
2    * Redistribution and use of this software and associated documentation ("Software"), with or
3    * without modification, are permitted provided that the following conditions are met:
4    *
5    * 1. Redistributions of source code must retain copyright statements and notices. Redistributions
6    * must also contain a copy of this document.
7    *
8    * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
9    * conditions and the following disclaimer in the documentation and/or other materials provided with
10   * the distribution.
11   *
12   * 3. The name "Exolab" must not be used to endorse or promote products derived from this Software
13   * without prior written permission of Intalio, Inc. For written permission, please contact
14   * info@exolab.org.
15   *
16   * 4. Products derived from this Software may not be called "Exolab" nor may "Exolab" appear in
17   * their names without prior written permission of Intalio, Inc. Exolab is a registered trademark of
18   * Intalio, Inc.
19   *
20   * 5. Due credit should be given to the Exolab Project (http://www.exolab.org/).
21   *
22   * THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESSED OR
23   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
24   * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTALIO, INC. OR ITS
25   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
28   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
29   * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30   *
31   * Copyright 2003 (C) Intalio, Inc. All Rights Reserved.
32   *
33   * $Id$
34   */
35  
36  
37  package org.exolab.castor.mapping;
38  
39  
40  
41  /**
42   * An abstract factory class for creating GeneralizedFieldHandlers.
43   *
44   * 
45   * @author <a href="kvisco@intalio.com">Keith Visco</a>
46   * @version $Revision$ $Date: 2003-10-23 13:53:59 -0600 (Thu, 23 Oct 2003) $
47   */
48  public abstract class FieldHandlerFactory {
49  
50    /**
51     * Returns an array of the supported Class types for this FieldHandlerFactory. The array may be
52     * empty, but must not be null.
53     * 
54     * @return an array of supported Class types.
55     */
56    public abstract Class[] getSupportedTypes();
57  
58    /**
59     * Returns true if the given Class type is supported by this FieldHandlerFactory. If the type is
60     * supported, a call to #createFieldHandler will return a valid FieldHandler. If the type is not
61     * supported, a call to createFieldHandler may return null or throw a MappingException.
62     *
63     * @param type the Class type to determine support for.
64     *
65     * @return true if the given Class type is supported.
66     */
67    public abstract boolean isSupportedType(Class type);
68  
69    /**
70     * Creates a GeneralizedFieldHandler for the given class type. The method should return a new
71     * GeneralizedFieldHandler as an "underlying" FieldHandler will need to be set by the caller.
72     *
73     * @param type the Class type to create the FieldHandler for.
74     */
75    public abstract GeneralizedFieldHandler createFieldHandler(Class type) throws MappingException;
76  
77  
78  
79  } // -- FieldHandlerFactory
80  
81