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;
19
20 import java.lang.reflect.Method;
21
22 /**
23 * Represents a method invocation.
24 *
25 * @author James Carman
26 * @since 1.0
27 */
28 public interface Invocation
29 {
30 //**********************************************************************************************************************
31 // Other Methods
32 //**********************************************************************************************************************
33
34 /**
35 * Returns the arguments being passed to this method invocation. Changes in the elements of this array will be
36 * propagated to the recipient of this invocation.
37 *
38 * @return the arguments being passed to this method invocation
39 */
40 public Object[] getArguments();
41
42 /**
43 * Returns the method being called.
44 *
45 * @return the method being called
46 */
47 public Method getMethod();
48
49 /**
50 * Returns the proxy object on which this invocation was invoked.
51 *
52 * @return the proxy object on which this invocation was invoked
53 */
54 public Object getProxy();
55
56 /**
57 * Called in order to let the invocation proceed.
58 *
59 * @return the return value of the invocation
60 * @throws Throwable any exception or error that was thrown as a result of this invocation
61 */
62 public Object proceed() throws Throwable;
63 }