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 * Returns the method being called. 32 * @return the method being called 33 */ 34 public Method getMethod(); 35 36 /** 37 * Returns the arguments being passed to this method invocation. Changes in the elements of this array will be 38 * propagated to the recipient of this invocation. 39 * 40 * @return the arguments being passed to this method invocation 41 */ 42 public Object[] getArguments(); 43 44 /** 45 * Returns the proxy object on which this invocation was invoked. 46 * @return the proxy object on which this invocation was invoked 47 */ 48 public Object getProxy(); 49 50 /** 51 * Called in order to let the invocation proceed. 52 * @return the return value of the invocation 53 * @throws Throwable any exception or error that was thrown as a result of this invocation 54 */ 55 public Object proceed() throws Throwable; 56 }