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1 /*
2  * Copyright 2003,2004 The Apache Software Foundation
3  *
4  *  Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  *  Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package org.mockito.cglib.proxy;
17 
18 import java.lang.reflect.Method;
19 import java.util.List;
20 
21 /**
22  * Map methods of subclasses generated by {@link Enhancer} to a particular
23  * callback. The type of the callbacks chosen for each method affects
24  * the bytecode generated for that method in the subclass, and cannot
25  * change for the life of the class.
26  */
27 public interface CallbackFilter {
28     /**
29      * Map a method to a callback.
30      *
31      * @param method the intercepted method
32      * @param allMethods all the methods found on the instance. Don't mess with the contents of this list!!!
33      * @return the index into the array of callbacks (as specified by {@link Enhancer#setCallbacks}) to use for the method,
34      */
accept(Method method, List<Method> allMethods)35     int accept(Method method, List<Method> allMethods);
36 
37     /**
38      * The <code>CallbackFilter</code> in use affects which cached class
39      * the <code>Enhancer</code> will use, so this is a reminder that
40      * you should correctly implement <code>equals</code> and
41      * <code>hashCode</code> for custom <code>CallbackFilter</code>
42      * implementations in order to improve performance.
43     */
equals(Object o)44     boolean equals(Object o);
45 }
46