Source code

001/*
002 * Copyright (C) 2007 The Guava Authors
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
005 * in compliance with the License. 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 distributed under the License
010 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
011 * or implied. See the License for the specific language governing permissions and limitations under
012 * the License.
013 */
014
015package com.google.common.eventbus;
016
017import com.google.common.annotations.Beta;
018import java.lang.annotation.ElementType;
019import java.lang.annotation.Retention;
020import java.lang.annotation.RetentionPolicy;
021import java.lang.annotation.Target;
022
023/**
024 * Marks an event subscriber method as being thread-safe. This annotation indicates that EventBus
025 * may invoke the event subscriber simultaneously from multiple threads.
026 *
027 * <p>This does not mark the method, and so should be used in combination with {@link Subscribe}.
028 *
029 * @author Cliff Biffle
030 * @since 10.0
031 */
032@Retention(RetentionPolicy.RUNTIME)
033@Target(ElementType.METHOD)
034@Beta
035public @interface AllowConcurrentEvents {}