com.hazelcast.ringbuffer.impl.operations

Class MergeOperation

java.lang.Object

com.hazelcast.spi.Operation

com.hazelcast.ringbuffer.impl.operations.MergeOperation

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable, BackupAwareOperation, PartitionAwareOperation, ServiceNamespaceAware

public class MergeOperation
extends Operation
implements IdentifiedDataSerializable, BackupAwareOperation, ServiceNamespaceAware

Contains an entire ringbuffer for split-brain healing with a SplitBrainMergePolicy.

Since:

3.10

Field Summary

Fields inherited from class com.hazelcast.spi.Operation

GENERIC_PARTITION_ID

Constructor Summary

Constructors

Constructor and Description
MergeOperation()
MergeOperation(ObjectNamespace namespace, SplitBrainMergePolicy<RingbufferMergeData,SplitBrainMergeTypes.RingbufferMergeTypes> mergePolicy, Ringbuffer<Object> mergingRingbuffer)

Method Summary

Modifier and Type	Method and Description
void	beforeRun() The beforeRun is called before either the Operation.run() or the Operation.call() method is called.
int	getAsyncBackupCount() The asynchronous backup count.
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.
String	getServiceName()
ServiceNamespace	getServiceNamespace() Returns the ServiceNamespace which this object belongs to.
int	getSyncBackupCount() The synchronous backup count.
protected void	readInternal(ObjectDataInput in)
void	run() Runs the operation.
boolean	shouldBackup() Checks if a backup needs to be made.
protected void	writeInternal(ObjectDataOutput out)

Methods inherited from class com.hazelcast.spi.Operation

afterRun, call, executedLocally, getCallerAddress, getCallerUuid, getCallId, getCallTimeout, getConnection, getInvocationTime, getLogger, getNodeEngine, getOperationResponseHandler, getPartitionId, getReplicaIndex, getResponse, getService, getWaitTimeout, isUrgent, logError, onExecutionFailure, onInvocationException, onSetCallId, readData, requiresExplicitServiceName, returnsResponse, 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.nio.serialization.DataSerializable

readData, writeData

Methods inherited from interface com.hazelcast.spi.PartitionAwareOperation

getPartitionId

Constructor Detail

MergeOperation

public MergeOperation()

MergeOperation

public MergeOperation(ObjectNamespace namespace,
                      SplitBrainMergePolicy<RingbufferMergeData,SplitBrainMergeTypes.RingbufferMergeTypes> mergePolicy,
                      Ringbuffer<Object> mergingRingbuffer)

Method Detail

beforeRun

public void beforeRun()
               throws Exception

Description copied from class: Operation

The beforeRun is called before either the Operation.run() or the Operation.call() method is called. runs before wait-support

Overrides:

beforeRun in class Operation

Throws:

Exception

run

public void run()
         throws Exception

Description copied from class: Operation

Runs the operation. Either the Operation.run() or Operation.call() method should be implemented; not both. Runs after wait-support, supposed to do actual operation

Overrides:

run in class Operation

Throws:

Exception

See Also:

Operation.call()

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.

getServiceNamespace

public ServiceNamespace getServiceNamespace()

Description copied from interface: ServiceNamespaceAware

Returns the ServiceNamespace which this object belongs to.

Specified by:

getServiceNamespace in interface ServiceNamespaceAware

Returns:

service namespace

getServiceName

public String getServiceName()

Overrides:

getServiceName in class Operation

getFactoryId

public int getFactoryId()

Description copied from interface: IdentifiedDataSerializable

Returns DataSerializableFactory factory ID for this class.

Specified by:

getFactoryId in interface IdentifiedDataSerializable

Returns:

factory ID

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 Operation

Throws:

IOException

readInternal

protected void readInternal(ObjectDataInput in)
                     throws IOException

Overrides:

readInternal in class Operation

Throws:

IOException