com.hazelcast.collection.impl.txnqueue.operations

Class TxnPrepareOperation

java.lang.Object

com.hazelcast.spi.Operation

com.hazelcast.collection.impl.queue.operations.QueueOperation

com.hazelcast.collection.impl.queue.operations.QueueBackupAwareOperation

com.hazelcast.collection.impl.txnqueue.operations.TxnPrepareOperation

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable, BackupAwareOperation, PartitionAwareOperation

public class TxnPrepareOperation
extends QueueBackupAwareOperation

Prepare operation for the transactional queue.

Field Summary

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

name, response

Fields inherited from class com.hazelcast.spi.Operation

GENERIC_PARTITION_ID

Constructor Summary

Constructors

Constructor and Description
TxnPrepareOperation()
TxnPrepareOperation(int partitionId, String name, long[] itemIds, String transactionId)

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.
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.collection.impl.queue.operations.QueueBackupAwareOperation

getAsyncBackupCount, getSyncBackupCount

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

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

Methods inherited from class com.hazelcast.spi.Operation

getCallerAddress, getCallerUuid, getCallId, getCallTimeout, getConnection, getInvocationTime, getLogger, getNodeEngine, getOperationResponseHandler, getPartitionId, getReplicaIndex, getService, getWaitTimeout, isUrgent, logError, onExecutionFailure, onInvocationException, onSetCallId, readData, sendResponse, setCallerUuid, setNodeEngine, setOperationResponseHandler, setPartitionId, setReplicaIndex, setService, setServiceName, setValidateTarget, setWaitTimeout, toString, 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(int partitionId,
                   String name,
                   long[] itemIds,
                   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 responsible for making the backup.

getId

public int getId()

Description copied from interface: IdentifiedDataSerializable

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

Returns:

type id

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