001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 * 019 */ 020package org.apache.mina.statemachine.event; 021 022import org.apache.mina.statemachine.StateMachine; 023 024/** 025 * Intercepts the {@link Event} arguments before the {@link Event} is passed 026 * to the {@link StateMachine} and allows for the arguments to be modified. 027 * This is for advanced uses only. 028 * 029 * @author <a href="http://mina.apache.org">Apache MINA Project</a> 030 */ 031public interface EventArgumentsInterceptor { 032 033 /** 034 * Modifies the specified array of event arguments. 035 * 036 * @param arguments the original arguments. 037 * @return the new arguments. Should return the original array if no 038 * modification is needed. 039 */ 040 Object[] modify(Object[] arguments); 041 042}