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/*
* Copyright 2015 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> {
/**
* 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);
}
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