/*
* 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.record.Record;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;
import java.io.IOException;
//todo: unused class?
public class MergeRemoveOperation extends BaseRemoveOperation {
private long removeTime;
private boolean merged;
public MergeRemoveOperation(String name, Data dataKey, long removeTime) {
super(name, dataKey);
this.removeTime = removeTime;
}
public MergeRemoveOperation() {
}
public void run() {
Record record = recordStore.getRecord(dataKey);
// todo what if statistics is disabled. currently it accepts the remove
// check if there is newer update or insert. If so then cancel the remove
if (record.getCreationTime() > removeTime
|| record.getLastUpdateTime() > removeTime) {
return;
}
recordStore.deleteRecord(dataKey);
merged = true;
}
@Override
public Object getResponse() {
return merged;
}
public void afterRun() {
if (merged) {
invalidateNearCaches();
}
}
public boolean shouldBackup() {
return merged;
}
@Override
public void onWaitExpire() {
getResponseHandler().sendResponse(false);
}
@Override
protected void writeInternal(ObjectDataOutput out) throws IOException {
super.writeInternal(out);
out.writeLong(removeTime);
}
@Override
protected void readInternal(ObjectDataInput in) throws IOException {
super.readInternal(in);
removeTime = in.readLong();
}
@Override
public String toString() {
return "MergeRemoveOperation{" + name + "}";
}
}