1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.commons.proxy.factory.util;
19
20 import java.lang.reflect.Method;
21 import java.util.Arrays;
22 import java.util.List;
23
24 /**
25 * A class for capturing the signature of a method (its name and parameter types).
26 *
27 * @author James Carman
28 * @since 1.0
29 */
30 public class MethodSignature
31 {
32 //----------------------------------------------------------------------------------------------------------------------
33 // Fields
34 //----------------------------------------------------------------------------------------------------------------------
35
36 private final String name;
37 private final List parameterTypes;
38
39 //----------------------------------------------------------------------------------------------------------------------
40 // Constructors
41 //----------------------------------------------------------------------------------------------------------------------
42
43 public MethodSignature( Method method )
44 {
45 this.name = method.getName();
46 this.parameterTypes = Arrays.asList( method.getParameterTypes() );
47 }
48
49 //----------------------------------------------------------------------------------------------------------------------
50 // Canonical Methods
51 //----------------------------------------------------------------------------------------------------------------------
52
53 public boolean equals( Object o )
54 {
55 if( this == o )
56 {
57 return true;
58 }
59 if( o == null || getClass() != o.getClass() )
60 {
61 return false;
62 }
63 final MethodSignature that = ( MethodSignature ) o;
64 if( !name.equals( that.name ) )
65 {
66 return false;
67 }
68 if( !parameterTypes.equals( that.parameterTypes ) )
69 {
70 return false;
71 }
72 return true;
73 }
74
75 public int hashCode()
76 {
77 int result;
78 result = name.hashCode();
79 result = 29 * result + parameterTypes.hashCode();
80 return result;
81 }
82 }
83