com.hazelcast.map.tx

Class TxnPrepareOperation

java.lang.Object

com.hazelcast.spi.Operation

com.hazelcast.map.operation.KeyBasedMapOperation

com.hazelcast.map.tx.TxnPrepareOperation

All Implemented Interfaces:

DataSerializable, BackupAwareOperation, RemotePropagatable<Operation>, PartitionAwareOperation

public class TxnPrepareOperation
extends KeyBasedMapOperation
implements BackupAwareOperation

An operation to prepare transaction by locking the key on the key owner.

Field Summary

Fields inherited from class com.hazelcast.map.operation.KeyBasedMapOperation

dataKey, dataValue, mapContainer, mapService, name, partitionContainer, recordStore, threadId, ttl

Constructor Summary

Constructors

Modifier	Constructor and Description
	TxnPrepareOperation()
protected	TxnPrepareOperation(String name, Data dataKey, String ownerUuid)

Method Summary

Methods

Modifier and Type	Method and Description
int	getAsyncBackupCount() The asynchronous backup count.
Operation	getBackupOperation() Creates the BackupOperation responsible for making the backup.
Object	getResponse()
int	getSyncBackupCount() The synchronous backup count.
protected void	readInternal(ObjectDataInput in)
void	run()
boolean	shouldBackup() Checks if a backup needs to be made.
String	toString()
protected void	writeInternal(ObjectDataOutput out)

Methods inherited from class com.hazelcast.map.operation.KeyBasedMapOperation

afterRun, beforeRun, evict, getKey, getName, getThreadId, getTtl, getValue, innerBeforeRun, invalidateNearCaches, returnsResponse, setThreadId

Methods inherited from class com.hazelcast.spi.Operation

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

Constructor Detail

TxnPrepareOperation

protected TxnPrepareOperation(String name,
                   Data dataKey,
                   String ownerUuid)

TxnPrepareOperation

public TxnPrepareOperation()

Method Detail

run

public void run()
         throws Exception

Specified by:

run in class Operation

Throws:

Exception

getResponse

public Object getResponse()

Specified by:

getResponse in class Operation

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 final 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.

getAsyncBackupCount

public final int getAsyncBackupCount()

Description copied from interface: BackupAwareOperation

The asynchronous backup count. If no asynchronous backups need to be made, 0 is returned.

Specified by:

getAsyncBackupCount in interface BackupAwareOperation

Returns:

the asynchronous backup count.

getSyncBackupCount

public final int getSyncBackupCount()

Description copied from interface: BackupAwareOperation

The synchronous backup count. If no backups need to be made, 0 is returned.

Specified by:

getSyncBackupCount in interface BackupAwareOperation

Returns:

the synchronous backup count.

writeInternal

protected void writeInternal(ObjectDataOutput out)
                      throws IOException

Overrides:

writeInternal in class KeyBasedMapOperation

Throws:

IOException

readInternal

protected void readInternal(ObjectDataInput in)
                     throws IOException

Overrides:

readInternal in class KeyBasedMapOperation

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object