001/** 002 * Copyright (c) 2008-2009 Apple Inc. All rights reserved. 003 * Copyright (C) 2012 FuseSource, Inc. 004 * http://fusesource.com 005 * 006 * Licensed under the Apache License, Version 2.0 (the "License"); 007 * you may not use this file except in compliance with the License. 008 * 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, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 019package org.fusesource.hawtdispatch; 020 021/** 022 * This class should be implemented by Aggregator classes which 023 * depend on FIFO ordering of events from the point of view of 024 * the serial queue which merges events into it. 025 * 026 * @author <a href="http://hiramchirino.com">Hiram Chirino</a> 027 */ 028public interface OrderedEventAggregator<Event, MergedEvent> extends EventAggregator<Event, MergedEvent>{ 029}