| /* |
| * 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.collect.Multimap; |
| |
| /** |
| * A method for finding event subscriber methods in objects, for use by |
| * {@link EventBus}. |
| * |
| * @author Cliff Biffle |
| */ |
| interface SubscriberFindingStrategy { |
| |
| /** |
| * Finds all suitable event subscriber methods in {@code source}, organizes them |
| * by the type of event they handle, and wraps them in {@link EventSubscriber} instances. |
| * |
| * @param source object whose subscribers are desired. |
| * @return EventSubscriber objects for each subscriber method, organized by event |
| * type. |
| * |
| * @throws IllegalArgumentException if {@code source} is not appropriate for |
| * this strategy (in ways that this interface does not define). |
| */ |
| Multimap<Class<?>, EventSubscriber> findAllSubscribers(Object source); |
| |
| } |