1 /* ====================================================================
2 * The Apache Software License, Version 1.1
3 *
4 * Copyright (c) 2000 The Apache Software Foundation. All rights
5 * reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * 3. The end-user documentation included with the redistribution,
20 * if any, must include the following acknowledgment:
21 * "This product includes software developed by the
22 * Apache Software Foundation (http://www.apache.org/)."
23 * Alternately, this acknowledgment may appear in the software itself,
24 * if and wherever such third-party acknowledgments normally appear.
25 *
26 * 4. The names "Apache" and "Apache Software Foundation" must
27 * not be used to endorse or promote products derived from this
28 * software without prior written permission. For written
29 * permission, please contact apache@apache.org.
30 *
31 * 5. Products derived from this software may not be called "Apache",
32 * nor may "Apache" appear in their name, without prior written
33 * permission of the Apache Software Foundation.
34 *
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46 * SUCH DAMAGE.
47 * ====================================================================
48 *
49 * This software consists of voluntary contributions made by many
50 * individuals on behalf of the Apache Software Foundation. For more
51 * information on the Apache Software Foundation, please see
52 * <http://www.apache.org/>;.
53 *
54 * Portions of this software are based upon public domain software
55 * originally written at the National Center for Supercomputing Applications,
56 * University of Illinois, Urbana-Champaign.
57 */
58
59 package net.sourceforge.jane.lang.reflection;
60
61 import java.lang.reflect.Member;
62 import java.lang.reflect.Method;
63 import net.sourceforge.jane.lang.*;
64
65 /***
66 * Method information that uses reflection.
67 *
68 * @author Calvin Yu
69 */
70 public class ReflectionMethodInfo extends MemberElementBase
71 implements MethodInfo
72 {
73
74 private Method method;
75
76 /***
77 * Create a new <code>ReflectionMethodInfo</code>.
78 */
79 public ReflectionMethodInfo(Method aMethod)
80 {
81 method = aMethod;
82 }
83
84 /***
85 * Returns the return type of this method.
86 */
87 public ClassInfo getReturnType()
88 {
89 return new ReflectionClassInfo(method.getReturnType());
90 }
91
92 /***
93 * Returns the exception thrown by this method.
94 */
95 public Classes getExceptions()
96 {
97 return new ReflectionClasses(method.getExceptionTypes());
98 }
99
100 /***
101 * Returns the parameters of this method.
102 */
103 public Parameters getParameters()
104 {
105 return new ReflectionParameters();
106 }
107
108 /***
109 * Returns the member.
110 */
111 protected Member getMember()
112 {
113 return method;
114 }
115
116 /***
117 * A {@link Parameters} implementation.
118 */
119 private class ReflectionParameters extends Parameters
120 {
121 /***
122 * Returns the number of parameters.
123 */
124 public int getParameterCount()
125 {
126 return method.getParameterTypes().length;
127 }
128
129 /***
130 * Returns the parameter at the given index.
131 */
132 public ParameterInfo getParameter(int index)
133 {
134 return new ReflectionParameterInfo(index);
135 }
136 }
137
138 /***
139 * A {@link ParameterInfo} implementation.
140 */
141 private class ReflectionParameterInfo extends SimpleParameterInfo
142 {
143 /***
144 * Create a new <code>ReflectionParameterInfo</code>.
145 */
146 public ReflectionParameterInfo(int anIndex)
147 {
148 super(anIndex);
149 }
150
151 /***
152 * Returns the parameter type.
153 */
154 public ClassInfo getType()
155 {
156 return new ReflectionClassInfo(method.getParameterTypes()[index]);
157 }
158 }
159
160 }
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