001package org.apache.commons.jcs.engine.control.event.behavior; 002 003/* 004 * Licensed to the Apache Software Foundation (ASF) under one 005 * or more contributor license agreements. See the NOTICE file 006 * distributed with this work for additional information 007 * regarding copyright ownership. The ASF licenses this file 008 * to you under the Apache License, Version 2.0 (the 009 * "License"); you may not use this file except in compliance 010 * with the License. You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, 015 * software distributed under the License is distributed on an 016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 017 * KIND, either express or implied. See the License for the 018 * specific language governing permissions and limitations 019 * under the License. 020 */ 021 022import java.io.IOException; 023 024/** 025 * Interface for an element event queue. An event queue is used to propagate 026 * ordered element events in one region. 027 * 028 */ 029public interface IElementEventQueue 030{ 031 /** 032 * Adds an ElementEvent to be handled 033 * 034 * @param hand 035 * The IElementEventHandler 036 * @param event 037 * The IElementEventHandler IElementEvent event 038 * @throws IOException 039 */ 040 <T> void addElementEvent( IElementEventHandler hand, IElementEvent<T> event ) 041 throws IOException; 042 043 /** 044 * Destroy the event queue 045 * 046 */ 047 void dispose(); 048}