com.hazelcast.map.impl.operation.MapIsEmptyOperation Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2015, 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.impl.operation;
import com.hazelcast.map.impl.MapServiceContext;
import com.hazelcast.map.impl.RecordStore;
import com.hazelcast.monitor.impl.LocalMapStatsImpl;
import com.hazelcast.spi.PartitionAwareOperation;
import com.hazelcast.spi.ReadonlyOperation;
public class MapIsEmptyOperation extends AbstractMapOperation implements PartitionAwareOperation, ReadonlyOperation {
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()) {
LocalMapStatsImpl localMapStatsImpl = mapServiceContext.getLocalMapStatsProvider()
.getLocalMapStatsImpl(name);
localMapStatsImpl.incrementOtherOperations();
}
}
@Override
public Object getResponse() {
return empty;
}
}