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 1999-2003 (C) Intalio, Inc. All Rights Reserved.
32 *
33 * $Id: MappingTool.java 6026 2006-06-28 07:24:40Z wguttmn $
34 */
35 package org.exolab.castor.tools;
36
37 import java.lang.reflect.Array;
38
39 import org.castor.xml.JavaNaming;
40 import org.exolab.castor.mapping.loader.AbstractMappingLoader;
41
42 /**
43 * Extend mapping loader to give us access to the findAccessor method.
44 */
45 public final class MappingToolMappingLoader {
46 /**
47 * The {@link JavaNaming} implementation to use.
48 *
49 * @since 1.1.3
50 */
51 private JavaNaming _javaNaming;
52
53 /**
54 * A MappingToolMappingLoader needs a javaNaming to be set.
55 *
56 * @param javaNaming the {@link JavaNaming} implementation to use
57 */
58 public MappingToolMappingLoader(final JavaNaming javaNaming) {
59 _javaNaming = javaNaming;
60 }
61
62 /**
63 * Returns true if the get method returns an array. This method is used for greater compatability
64 * with generated descriptors.
65 *
66 * @param clazz the Class to find an accessor in
67 * @param fieldName the field for which an accessor is sought
68 * @param type the returning type of the accessor
69 * @return if get method returns an array.
70 **/
71 public boolean returnsArray(final Class clazz, final String fieldName, final Class type) {
72 try {
73 Class array = null;
74 if (type.isArray()) {
75 array = type;
76 } else {
77 array = Array.newInstance(type, 0).getClass();
78 }
79 // -- getMethod
80 String method = _javaNaming.getGetMethodNameForField(fieldName);
81 boolean isGet = true;
82 if (AbstractMappingLoader.findAccessor(clazz, method, array, isGet) != null) {
83 return true;
84 }
85 } catch (Exception ex) {
86 // nothing to do
87 }
88 return false;
89 }
90
91 /**
92 * Checks if any accessor for a certain field exists.
93 *
94 * @param clazz the Class to search in
95 * @param fieldName the field to search an accessor for
96 * @param type the return type the accessor should have
97 * @return true if a matching accessor could be found
98 */
99 public boolean canFindAccessors(final Class clazz, final String fieldName, final Class type) {
100 try {
101 String methodName = null;
102
103 // -- getMethod
104 methodName = _javaNaming.getGetMethodNameForField(fieldName);
105 boolean isGet = true;
106 if (AbstractMappingLoader.findAccessor(clazz, methodName, type, isGet) != null) {
107 return true;
108 }
109
110 // -- setMethod and/or addMethod
111 isGet = false;
112 methodName = _javaNaming.getSetMethodNameForField(fieldName);
113 if (AbstractMappingLoader.findAccessor(clazz, methodName, type, isGet) != null) {
114 return true;
115 }
116 methodName = _javaNaming.getAddMethodNameForField(fieldName);
117 if (AbstractMappingLoader.findAccessor(clazz, methodName, type, isGet) != null) {
118 return true;
119 }
120 } catch (Exception ex) {
121 // nothing to do
122 }
123 return false;
124 }
125 }