com.hazelcast.ringbuffer.impl.operations

Class AddOperation

java.lang.Object

com.hazelcast.spi.Operation

com.hazelcast.ringbuffer.impl.operations.AbstractRingBufferOperation

com.hazelcast.ringbuffer.impl.operations.AddOperation

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable, BackupAwareOperation, Notifier, PartitionAwareOperation, ServiceNamespaceAware

public class AddOperation
extends AbstractRingBufferOperation
implements Notifier, BackupAwareOperation

Adds a new ring buffer item. The master node will add the item into the ring buffer, generating a new sequence ID while the backup operation will put the item under the sequence ID that the master generated. This is to avoid differences in ring buffer data structures.

Field Summary

Fields inherited from class com.hazelcast.ringbuffer.impl.operations.AbstractRingBufferOperation

name

Fields inherited from class com.hazelcast.spi.Operation

GENERIC_PARTITION_ID

Constructor Summary

Constructors

Constructor and Description
AddOperation()
AddOperation(String name, Data item, OverflowPolicy overflowPolicy)

Method Summary

Modifier and Type	Method and Description
int	getAsyncBackupCount() The asynchronous backup count.
Operation	getBackupOperation() Creates the BackupOperation responsible for making the backup.
int	getId() Returns type identifier for this class.
WaitNotifyKey	getNotifiedKey()
Long	getResponse()
int	getSyncBackupCount() The synchronous backup count.
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.ringbuffer.impl.operations.AbstractRingBufferOperation

getFactoryId, getServiceName, getServiceNamespace, logError, toString

Methods inherited from class com.hazelcast.spi.Operation

afterRun, beforeRun, executedLocally, getCallerAddress, getCallerUuid, getCallId, getCallTimeout, getConnection, getInvocationTime, getLogger, getNodeEngine, getOperationResponseHandler, getPartitionId, getReplicaIndex, getService, getWaitTimeout, isUrgent, onExecutionFailure, onInvocationException, onSetCallId, readData, returnsResponse, sendResponse, setCallerUuid, setNodeEngine, setOperationResponseHandler, setPartitionId, setReplicaIndex, 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

AddOperation

public AddOperation()

AddOperation

public AddOperation(String name,
                    Data item,
                    OverflowPolicy overflowPolicy)

Method Detail

run

public void run()
         throws Exception

Specified by:

run in class Operation

Throws:

Exception

getNotifiedKey

public WaitNotifyKey getNotifiedKey()

Specified by:

getNotifiedKey in interface Notifier

shouldNotify

public boolean shouldNotify()

Specified by:

shouldNotify in interface Notifier

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.

getSyncBackupCount

public 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.

getAsyncBackupCount

public 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.

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 responsible for making the backup.

getResponse

public Long getResponse()

Overrides:

getResponse in class Operation

getId

public int getId()

Description copied from interface: IdentifiedDataSerializable

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

Specified by:

getId in interface IdentifiedDataSerializable

Returns:

type ID

writeInternal

protected void writeInternal(ObjectDataOutput out)
                      throws IOException

Overrides:

writeInternal in class AbstractRingBufferOperation

Throws:

IOException

readInternal

protected void readInternal(ObjectDataInput in)
                     throws IOException

Overrides:

readInternal in class AbstractRingBufferOperation

Throws:

IOException