| /* |
| * Copyright (C) 2007 The Guava Authors |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except |
| * in compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| |
| package com.google.common.eventbus; |
| |
| import com.google.common.annotations.Beta; |
| import java.lang.annotation.ElementType; |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.lang.annotation.Target; |
| |
| /** |
| * Marks a method as an event subscriber. |
| * |
| * <p>The type of event will be indicated by the method's first (and only) parameter, which cannot |
| * be primitive. If this annotation is applied to methods with zero parameters, or more than one |
| * parameter, the object containing the method will not be able to register for event delivery from |
| * the {@link EventBus}. |
| * |
| * <p>Unless also annotated with @{@link AllowConcurrentEvents}, event subscriber methods will be |
| * invoked serially by each event bus that they are registered with. |
| * |
| * @author Cliff Biffle |
| * @since 10.0 |
| */ |
| @Retention(RetentionPolicy.RUNTIME) |
| @Target(ElementType.METHOD) |
| @Beta |
| public @interface Subscribe {} |