com.hazelcast.map.eviction.LFUEvictionPolicy Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2016, 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.eviction;
import com.hazelcast.core.EntryView;
/**
* LFU eviction policy for an {@link com.hazelcast.core.IMap IMap}
*/
public class LFUEvictionPolicy extends MapEvictionPolicy {
/**
* LFU eviction policy instance.
*/
public static final LFUEvictionPolicy INSTANCE = new LFUEvictionPolicy();
@Override
public int compare(EntryView entryView1, EntryView entryView2) {
long hits1 = entryView1.getHits();
long hits2 = entryView2.getHits();
return (hits1 < hits2) ? -1 : ((hits1 == hits2) ? 0 : 1);
}
}