/* * Copyright 2015-present 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.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); }