com.hazelcast.queue.impl.operations

Class PollOperation

java.lang.Object

com.hazelcast.spi.Operation

com.hazelcast.queue.impl.operations.QueueOperation

com.hazelcast.queue.impl.operations.QueueBackupAwareOperation

com.hazelcast.queue.impl.operations.PollOperation

All Implemented Interfaces:

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

public final class PollOperation
extends QueueBackupAwareOperation
implements WaitSupport, Notifier, IdentifiedDataSerializable

Pool operation for Queue.

Field Summary

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

name, response

Constructor Summary

Constructors

Constructor and Description
PollOperation()
PollOperation(String name, long timeoutMillis)

Method Summary

Methods

Modifier and Type	Method and Description
void	afterRun()
Operation	getBackupOperation() Creates the BackupOperation responsible for making the backup.
int	getFactoryId() Returns DataSerializableFactory factory id for this class.
int	getId() Returns type identifier for this class.
WaitNotifyKey	getNotifiedKey()
WaitNotifyKey	getWaitKey()
void	onWaitExpire()
void	run()
boolean	shouldBackup() Checks if a backup needs to be made.
boolean	shouldNotify()
boolean	shouldWait()

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

getAsyncBackupCount, getSyncBackupCount

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

beforeRun, getName, getOrCreateContainer, getQueueService, getResponse, getServiceName, hasListener, publishEvent, readInternal, returnsResponse, writeInternal

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.WaitSupport

getWaitTimeout

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

readData, writeData

Methods inherited from interface com.hazelcast.spi.PartitionAwareOperation

getPartitionId

Constructor Detail

PollOperation

public PollOperation()

PollOperation

public PollOperation(String name,
             long timeoutMillis)

Method Detail

run

public void run()

Specified by:

run in class Operation

afterRun

public void afterRun()
              throws Exception

Overrides:

afterRun in class QueueOperation

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.

shouldNotify

public boolean shouldNotify()

Specified by:

shouldNotify in interface Notifier

getNotifiedKey

public WaitNotifyKey getNotifiedKey()

Specified by:

getNotifiedKey in interface Notifier

getWaitKey

public WaitNotifyKey getWaitKey()

Specified by:

getWaitKey in interface WaitSupport

shouldWait

public boolean shouldWait()

Specified by:

shouldWait in interface WaitSupport

onWaitExpire

public void onWaitExpire()

Specified by:

onWaitExpire in interface WaitSupport

getFactoryId

public int getFactoryId()

Description copied from interface: IdentifiedDataSerializable

Returns DataSerializableFactory factory id for this class.

Specified by:

getFactoryId in interface IdentifiedDataSerializable

Overrides:

getFactoryId in class QueueOperation

Returns:

factory id

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