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 1999-2003 (C) Intalio, Inc. All Rights Reserved.
42 *
43 * $Id: MappingTool.java 6026 2006-06-28 07:24:40Z wguttmn $
44 */
45 package org.exolab.castor.tools;
46
47 import java.lang.reflect.Array;
48
49 import org.castor.xml.JavaNaming;
50 import org.exolab.castor.mapping.loader.AbstractMappingLoader;
51
52 /**
53 * Extend mapping loader to give us access to the findAccessor method.
54 */
55 public final class MappingToolMappingLoader {
56 /**
57 * The {@link JavaNaming} implementation to use.
58 * @since 1.1.3
59 */
60 private JavaNaming _javaNaming;
61
62 /**
63 * A MappingToolMappingLoader needs a javaNaming to be set.
64 * @param javaNaming the {@link JavaNaming} implementation to use
65 */
66 public MappingToolMappingLoader(final JavaNaming javaNaming) {
67 _javaNaming = javaNaming;
68 }
69
70 /**
71 * Returns true if the get method returns an array.
72 * This method is used for greater compatability with
73 * generated descriptors.
74 * @param clazz the Class to find an accessor in
75 * @param fieldName the field for which an accessor is sought
76 * @param type the returning type of the accessor
77 * @return if get method returns an array.
78 **/
79 public boolean returnsArray(final Class clazz, final String fieldName, final Class type) {
80 try {
81 Class array = null;
82 if (type.isArray()) {
83 array = type;
84 } else {
85 array = Array.newInstance(type, 0).getClass();
86 }
87 //-- getMethod
88 String method = _javaNaming.getGetMethodNameForField(fieldName);
89 boolean isGet = true;
90 if (AbstractMappingLoader.findAccessor(clazz, method, array, isGet) != null) {
91 return true;
92 }
93 } catch (Exception ex) {
94 // nothing to do
95 }
96 return false;
97 }
98
99 /**
100 * Checks if any accessor for a certain field exists.
101 * @param clazz the Class to search in
102 * @param fieldName the field to search an accessor for
103 * @param type the return type the accessor should have
104 * @return true if a matching accessor could be found
105 */
106 public boolean canFindAccessors(final Class clazz, final String fieldName, final Class type) {
107 try {
108 String methodName = null;
109
110 //-- getMethod
111 methodName = _javaNaming.getGetMethodNameForField(fieldName);
112 boolean isGet = true;
113 if (AbstractMappingLoader.findAccessor(clazz, methodName, type, isGet) != null) {
114 return true;
115 }
116
117 //-- setMethod and/or addMethod
118 isGet = false;
119 methodName = _javaNaming.getSetMethodNameForField(fieldName);
120 if (AbstractMappingLoader.findAccessor(clazz, methodName, type, isGet) != null) {
121 return true;
122 }
123 methodName = _javaNaming.getAddMethodNameForField(fieldName);
124 if (AbstractMappingLoader.findAccessor(clazz, methodName, type, isGet) != null) {
125 return true;
126 }
127 } catch (Exception ex) {
128 // nothing to do
129 }
130 return false;
131 }
132 }