com.hazelcast.queue.impl.operations
Class PollOperation

java.lang.Object
  extended by com.hazelcast.spi.Operation
      extended by com.hazelcast.queue.impl.operations.QueueOperation
          extended by com.hazelcast.queue.impl.operations.QueueBackupAwareOperation
              extended by 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
PollOperation()
           
PollOperation(String name, long timeoutMillis)
           
 
Method Summary
 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


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