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 2004 (C) Intalio, Inc. All Rights Reserved.
32 *
33 * $Id$
34 */
35 package org.exolab.castor.xml.handlers;
36
37 import org.exolab.castor.mapping.FieldHandlerFactory;
38 import org.exolab.castor.mapping.GeneralizedFieldHandler;
39 import org.exolab.castor.mapping.MappingException;
40
41 /**
42 * The default FieldHandlerFactory implementation. Used by the Introspector. This implementation
43 * only supports java.sql.Time and java.sql.Timestamp.
44 *
45 * @author <a href="kvisco@intalio.com">Keith Visco</a>
46 * @version $Revision$ $Date: 2004-04-08 22:44:47 -0600 (Thu, 08 Apr 2004) $
47 */
48 public class DefaultFieldHandlerFactory extends FieldHandlerFactory {
49
50 /** The array of supported classes. */
51 private static final Class[] SUPPORTED_CLASSES =
52 new Class[] {java.sql.Time.class, java.sql.Timestamp.class};
53
54 /**
55 * Returns an array of the supported Class types for this FieldHandlerFactory. The array may be
56 * empty, but must not be null.
57 *
58 * @return an array of supported Class types.
59 */
60 public Class[] getSupportedTypes() {
61 return (Class[]) SUPPORTED_CLASSES.clone();
62 } // -- getSupportedTypes
63
64 /**
65 * Returns true if the given Class type is supported by this FieldHandlerFactory. If the type is
66 * supported, a call to {@link #createFieldHandler} will return a valid FieldHandler. If the type
67 * is not supported, a call to createFieldHandler may return null or throw a MappingException.
68 *
69 * @param type the Class type to determine support for.
70 *
71 * @return true if the given Class type is supported.
72 */
73 public boolean isSupportedType(final Class type) {
74 for (int i = 0; i < SUPPORTED_CLASSES.length; i++) {
75 if (SUPPORTED_CLASSES[i].isAssignableFrom(type)) {
76 return true;
77 }
78 }
79 return false;
80 } // -- isSupportedType
81
82 /**
83 * Creates a GeneralizedFieldHandler for the given class type. The method should return a new
84 * GeneralizedFieldHandler as an "underlying" FieldHandler will need to be set by the caller.
85 *
86 * @param type the Class type to create the FieldHandler for.
87 * @return a new FieldHandler
88 * @throws MappingException if a <code>valueOf</code> method cannot be found.
89 */
90 public GeneralizedFieldHandler createFieldHandler(final Class type) throws MappingException {
91 if (type == null) {
92 return null;
93 }
94 if (java.sql.Time.class.isAssignableFrom(type)) {
95 return new SQLTimeFieldHandler();
96 }
97 if (java.sql.Timestamp.class.isAssignableFrom(type)) {
98 return new ValueOfFieldHandler(type);
99 }
100 return null;
101 } // -- createFieldHandler
102
103 } // -- DefaultFieldHandlerFactory