| /* |
| * Copyright 2015-present Open Networking Foundation |
| * |
| * 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.store.service; |
| |
| import java.util.Set; |
| |
| /** |
| * A distributed collection designed for holding unique elements. |
| * |
| * @param <E> set entry type |
| */ |
| public interface DistributedSet<E> extends Set<E>, DistributedPrimitive { |
| |
| /** |
| * Registers the specified listener to be notified whenever |
| * the set is updated. |
| * |
| * @param listener listener to notify about set update events |
| */ |
| void addListener(SetEventListener<E> listener); |
| |
| /** |
| * Unregisters the specified listener. |
| * |
| * @param listener listener to unregister. |
| */ |
| void removeListener(SetEventListener<E> listener); |
| } |