| /* |
| * Copyright 2014 Open Networking Laboratory |
| * |
| * 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 org.onosproject.event; |
| |
| import java.util.Set; |
| |
| /** |
| * Abstraction of an event sink registry capable of tracking sinks based on |
| * their event class. |
| */ |
| public interface EventSinkRegistry { |
| |
| /** |
| * Adds the specified sink for the given event class. |
| * |
| * @param eventClass event class |
| * @param sink event sink |
| * @param <E> type of event |
| */ |
| <E extends Event> void addSink(Class<E> eventClass, EventSink<E> sink); |
| |
| /** |
| * Removes the sink associated with the given event class. |
| * |
| * @param eventClass event class |
| * @param <E> type of event |
| */ |
| <E extends Event> void removeSink(Class<E> eventClass); |
| |
| /** |
| * Returns the event sink associated with the specified event class. |
| * |
| * @param eventClass event class |
| * @param <E> type of event |
| * @return event sink or null if none found |
| */ |
| <E extends Event> EventSink<E> getSink(Class<E> eventClass); |
| |
| /** |
| * Returns the set of all event classes for which sinks are presently |
| * registered. |
| * |
| * @return set of event classes |
| */ |
| Set<Class<? extends Event>> getSinks(); |
| |
| } |