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.tapestry.services; 016 017import org.apache.tapestry.event.ResetEventListener; 018 019/** 020 * Service interface for a source of <b>reset</b> events; this events are used 021 * to inform other services that they should discard any cached data. 022 * 023 * @author Howard Lewis Ship 024 * @since 4.0 025 */ 026public interface ResetEventHub 027{ 028 public void addResetEventListener(ResetEventListener l); 029 030 public void removeResetEventListener(ResetEventListener l); 031 032 /** 033 * Notifies registered listeners. 034 */ 035 public void fireResetEvent(); 036}