/*
* Copyright (c) 2008-2013, 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.operation;
import com.hazelcast.map.MapServiceContext;
import com.hazelcast.map.RecordStore;
import com.hazelcast.spi.PartitionAwareOperation;
public class MapIsEmptyOperation extends AbstractMapOperation implements PartitionAwareOperation {
private boolean empty;
public MapIsEmptyOperation(String name) {
super(name);
}
public MapIsEmptyOperation() {
}
public void run() {
final MapServiceContext mapServiceContext = mapService.getMapServiceContext();
RecordStore recordStore = mapServiceContext.getRecordStore(getPartitionId(), name);
empty = recordStore.isEmpty();
if (mapContainer.getMapConfig().isStatisticsEnabled()) {
mapServiceContext.getLocalMapStatsProvider()
.getLocalMapStatsImpl(name).incrementOtherOperations();
}
}
@Override
public Object getResponse() {
return empty;
}
}