11d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert/* 21d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Copyright (C) 2007 The Guava Authors 31d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 41d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Licensed under the Apache License, Version 2.0 (the "License"); 51d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * you may not use this file except in compliance with the License. 61d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * You may obtain a copy of the License at 71d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 81d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * http://www.apache.org/licenses/LICENSE-2.0 91d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 101d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Unless required by applicable law or agreed to in writing, software 111d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * distributed under the License is distributed on an "AS IS" BASIS, 121d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 131d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * See the License for the specific language governing permissions and 141d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * limitations under the License. 151d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 161d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 171d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertpackage com.google.common.eventbus; 181d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 191d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport java.lang.reflect.InvocationTargetException; 201d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport java.lang.reflect.Method; 211d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 221d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert/** 231d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Wraps a single-argument 'handler' method on a specific object, and ensures 241d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * that only one thread may enter the method at a time. 251d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 261d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * <p>Beyond synchronization, this class behaves identically to 271d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * {@link EventHandler}. 281d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 291d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @author Cliff Biffle 301d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 311d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertclass SynchronizedEventHandler extends EventHandler { 321d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 331d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Creates a new SynchronizedEventHandler to wrap {@code method} on 341d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * {@code target}. 351d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 361d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @param target object to which the method applies. 371d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @param method handler method. 381d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 391d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public SynchronizedEventHandler(Object target, Method method) { 401d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert super(target, method); 411d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 421d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 431d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public synchronized void handleEvent(Object event) 441d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throws InvocationTargetException { 451d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert super.handleEvent(event); 461d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 471d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 481d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert} 49