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.proxy2;
19
20 import java.lang.reflect.Method;
21
22 /**
23 * Method invocation for use by an {@link Interceptor}.
24 *
25 * @since 1.0
26 */
27 public interface Invocation
28 {
29 //******************************************************************************************************************
30 // Other Methods
31 //******************************************************************************************************************
32
33 /**
34 * Returns the arguments being passed to this method invocation. Changes in the elements of this array will be
35 * propagated to the recipient of this invocation.
36 *
37 * @return the arguments being passed to this method invocation
38 */
39 Object[] getArguments();
40
41 /**
42 * Returns the method being called.
43 *
44 * @return the method being called
45 */
46 Method getMethod();
47
48 /**
49 * Returns the proxy object on which this invocation was invoked.
50 *
51 * @return the proxy object on which this invocation was invoked
52 */
53 Object getProxy();
54
55 /**
56 * Called in order to let the invocation proceed.
57 *
58 * @return the return value of the invocation
59 * @throws Throwable
60 * any exception or error that was thrown as a result of this invocation
61 */
62 Object proceed() throws Throwable;
63 }