001// Copyright 2004, 2005 The Apache Software Foundation 002// 003// Licensed under the Apache License, Version 2.0 (the "License"); 004// you may not use this file except in compliance with the License. 005// You may obtain a copy of the License at 006// 007// http://www.apache.org/licenses/LICENSE-2.0 008// 009// Unless required by applicable law or agreed to in writing, software 010// distributed under the License is distributed on an "AS IS" BASIS, 011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012// See the License for the specific language governing permissions and 013// limitations under the License. 014 015package org.apache.hivemind.lib; 016 017/** 018 * Coordinates propogation of remote events. 019 * Manages a list of 020 * {@link org.apache.hivemind.lib.RemoteExceptionListener} and 021 * will perform notifications on demand. This allows 022 * objects which cache remote data to discard it after a remote exception. 023 * 024 * <p> 025 * This service is available as 026 * <codehivemind.lib.RemoteExceptionCoordinator</code>. 027 * 028 * 029 * @author Howard Lewis Ship 030 */ 031 032public interface RemoteExceptionCoordinator 033{ 034 public void addRemoteExceptionListener(RemoteExceptionListener listener); 035 public void removeRemoteExceptionListener(RemoteExceptionListener listener); 036 037 /** 038 * Invoked by an object which has caught a remote exception of some 039 * form. 040 */ 041 public void fireRemoteExceptionDidOccur(Object source, Throwable exception); 042}