com.hazelcast.queue.impl.tx

Class TxnRollbackOperation

java.lang.Object

com.hazelcast.spi.Operation

com.hazelcast.queue.impl.operations.QueueOperation

com.hazelcast.queue.impl.operations.QueueBackupAwareOperation

com.hazelcast.queue.impl.tx.TxnRollbackOperation

All Implemented Interfaces:

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

public class TxnRollbackOperation
extends QueueBackupAwareOperation
implements Notifier

Rollback operation for the transactional queue.

Field Summary

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

name, response

Constructor Summary

Constructors

Constructor and Description
TxnRollbackOperation()
TxnRollbackOperation(String name, long itemId, boolean pollOperation)

Method Summary

Methods

Modifier and Type	Method and Description
Operation	getBackupOperation() Creates the BackupOperation responsible for making the backup.
int	getId() Returns type identifier for this class.
WaitNotifyKey	getNotifiedKey()
protected void	readInternal(ObjectDataInput in)
void	run()
boolean	shouldBackup() Checks if a backup needs to be made.
boolean	shouldNotify()
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

TxnRollbackOperation

public TxnRollbackOperation()

TxnRollbackOperation

public TxnRollbackOperation(String name,
                    long itemId,
                    boolean pollOperation)

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.

Specified by:

shouldBackup in interface BackupAwareOperation

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.

Specified by:

getBackupOperation in interface BackupAwareOperation

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.

Specified by:

getId in interface IdentifiedDataSerializable

Returns:

type id

shouldNotify

public boolean shouldNotify()

Specified by:

shouldNotify in interface Notifier

getNotifiedKey

public WaitNotifyKey getNotifiedKey()

Specified by:

getNotifiedKey in interface Notifier