/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* 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.hazelcast.map.listener;
import com.hazelcast.core.EntryEvent;
/**
* Listener which is notified after removal of an entry due to the expiration-based-eviction.
* There are two sources of expiration based eviction, they are max-idle-seconds and time-to-live-seconds.
*
* Note that if your listener implements both {@link EntryExpiredListener} and {@link EntryEvictedListener} together,
* there is a probability that the listener may receive both expiration and eviction events for the same entry. This is because,
* size-based-eviction removes entries regardless of whether entries expired or not.
*
* @param <K> the type of key.
* @param <V> the type of value.
*
* @see EntryEvictedListener
*
* @since 3.6
*/
public interface EntryExpiredListener<K, V> extends MapListener {
/**
* Invoked upon expiration of an entry.
*
* @param event the event invoked when an entry is expired.
*/
void entryExpired(EntryEvent<K, V> event);
}