/*
* Copyright (c) 2008-2012, Hazel Bilisim Ltd. 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.merge;
import com.hazelcast.core.MapEntry;
import com.hazelcast.impl.base.DataRecordEntry;
public class HigherHitsMergePolicy implements MergePolicy {
public static final String NAME = "hz.HIGHER_HITS";
public Object merge(String mapName, MapEntry mergingEntry, MapEntry existingEntry) {
DataRecordEntry mergingDataEntry = (DataRecordEntry) mergingEntry;
DataRecordEntry existingDataEntry = (DataRecordEntry) existingEntry;
if (existingEntry == null || !existingDataEntry.hasValue()) {
return mergingDataEntry.getValueData();
}
return (mergingEntry.getHits() > existingEntry.getHits())
? mergingDataEntry.getValueData()
: existingDataEntry.getValueData();
}
}