com.hazelcast.queue.impl.tx
Class TxnPrepareOperation

java.lang.Object
  com.hazelcast.spi.Operation
      com.hazelcast.queue.impl.operations.QueueOperation
          com.hazelcast.queue.impl.operations.QueueBackupAwareOperation
              com.hazelcast.queue.impl.tx.TxnPrepareOperation

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable, BackupAwareOperation, RemotePropagatable<Operation>, PartitionAwareOperation

public class TxnPrepareOperation
extends QueueBackupAwareOperation

Prepare operation for the transactional queue.

Field Summary

Fields inherited from class com.hazelcast.queue.impl.operations.QueueOperation

name, response

Constructor Summary

TxnPrepareOperation()

TxnPrepareOperation(String name, long itemId, boolean pollOperation, String transactionId)

Method Summary

Operation	getBackupOperation() Creates the BackupOperation responsible for making the backup.
int	getId() Returns type identifier for this class.
protected void	readInternal(ObjectDataInput in)
void	run()
boolean	shouldBackup() Checks if a backup needs to be made.
protected void	writeInternal(ObjectDataOutput out)

Methods inherited from class com.hazelcast.queue.impl.operations.QueueBackupAwareOperation

getAsyncBackupCount, getSyncBackupCount

Methods inherited from class com.hazelcast.queue.impl.operations.QueueOperation

afterRun, beforeRun, getFactoryId, getName, getOrCreateContainer, getQueueService, getResponse, getServiceName, hasListener, publishEvent, returnsResponse

Methods inherited from class com.hazelcast.spi.Operation

getCallerAddress, getCallerUuid, getCallId, getCallTimeout, getConnection, getExecutorName, getInvocationTime, getLogger, getNodeEngine, getPartitionId, getReplicaIndex, getResponseHandler, getService, getWaitTimeout, isUrgent, logError, onException, readData, setCallerUuid, setExecutorName, setNodeEngine, setPartitionId, setReplicaIndex, setResponseHandler, setService, setServiceName, setValidateTarget, setWaitTimeout, toString, validatesTarget, writeData

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.hazelcast.spi.PartitionAwareOperation

getPartitionId

Methods inherited from interface com.hazelcast.nio.serialization.DataSerializable

readData, writeData

Constructor Detail

TxnPrepareOperation

public TxnPrepareOperation()

TxnPrepareOperation

public TxnPrepareOperation(String name,
                           long itemId,
                           boolean pollOperation,
                           String transactionId)

Method Detail

run

public void run()
         throws Exception

Specified by:

run in class Operation

Throws:

Exception

shouldBackup

public boolean shouldBackup()

Description copied from interface: BackupAwareOperation

Checks if a backup needs to be made.

If a call has not made any change, e.g. an AtomicLong increment with 0, no backup needs to be made.

Returns:

true if a backup needs to be made, false otherwise.

getBackupOperation

public Operation getBackupOperation()

Description copied from interface: BackupAwareOperation

Creates the BackupOperation responsible for making the backup.

Returns:

the created BackupOperation.

writeInternal

protected void writeInternal(ObjectDataOutput out)
                      throws IOException

Overrides:

writeInternal in class QueueOperation

Throws:

IOException

readInternal

protected void readInternal(ObjectDataInput in)
                     throws IOException

Overrides:

readInternal in class QueueOperation

Throws:

IOException

getId

public int getId()

Description copied from interface: IdentifiedDataSerializable

Returns type identifier for this class. Id should be unique per DataSerializableFactory.

Returns:

type id