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ClearOperation.java
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ClearOperation.java
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/*
* Copyright (c) 2008-2021, 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.core.EntryEventType;
import com.hazelcast.map.impl.MapDataSerializerHook;
import com.hazelcast.spi.impl.operationservice.BackupAwareOperation;
import com.hazelcast.spi.impl.operationservice.Operation;
import com.hazelcast.spi.impl.operationservice.PartitionAwareOperation;
import com.hazelcast.spi.impl.operationservice.MutatingOperation;
import static com.hazelcast.map.impl.MapService.SERVICE_NAME;
public class ClearOperation extends MapOperation
implements BackupAwareOperation, PartitionAwareOperation, MutatingOperation {
private boolean shouldBackup;
private int numberOfClearedEntries;
public ClearOperation() {
this(null);
}
public ClearOperation(String name) {
super(name);
setCreateRecordStoreOnDemand(false);
}
@Override
protected void runInternal() {
if (recordStore == null) {
return;
}
numberOfClearedEntries = recordStore.clear();
shouldBackup = true;
}
@Override
protected void afterRunInternal() {
invalidateAllKeysInNearCaches();
hintMapEvent();
}
private void hintMapEvent() {
mapEventPublisher.hintMapEvent(getCallerAddress(), name, EntryEventType.CLEAR_ALL,
numberOfClearedEntries, getPartitionId());
}
@Override
public boolean shouldBackup() {
return shouldBackup;
}
@Override
public int getSyncBackupCount() {
return mapServiceContext.getMapContainer(name).getBackupCount();
}
@Override
public int getAsyncBackupCount() {
return mapServiceContext.getMapContainer(name).getAsyncBackupCount();
}
@Override
public Object getResponse() {
return numberOfClearedEntries;
}
public Operation getBackupOperation() {
ClearBackupOperation clearBackupOperation = new ClearBackupOperation(name);
clearBackupOperation.setServiceName(SERVICE_NAME);
return clearBackupOperation;
}
@Override
public int getClassId() {
return MapDataSerializerHook.CLEAR;
}
}