com.hazelcast.cache.impl.operation

Class CacheMergeOperation

java.lang.Object

com.hazelcast.spi.Operation

com.hazelcast.spi.impl.AbstractNamedOperation

com.hazelcast.cache.impl.operation.CacheMergeOperation

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable, BackupAwareOperation, NamedOperation, PartitionAwareOperation, ServiceNamespaceAware

public class CacheMergeOperation
extends AbstractNamedOperation
implements BackupAwareOperation, ServiceNamespaceAware

Contains multiple merging entries for split-brain healing with a SplitBrainMergePolicy.

Since:

3.10

Field Summary

Fields inherited from class com.hazelcast.spi.impl.AbstractNamedOperation

name

Fields inherited from class com.hazelcast.spi.Operation

GENERIC_PARTITION_ID

Constructor Summary

Constructors

Constructor and Description
CacheMergeOperation()
CacheMergeOperation(String name, List<MergingEntryHolder<Data,Data>> mergingEntries, SplitBrainMergePolicy mergePolicy)

Method Summary

Modifier and Type	Method and Description
void	beforeRun()
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.
Object	getResponse() Called if and only if Operation.returnsResponse() returned true, shortly after Operation.run() returns.
ServiceNamespace	getServiceNamespace() Returns the ServiceNamespace which this object belongs to.
int	getSyncBackupCount() The synchronous backup count.
protected void	readInternal(ObjectDataInput in)
void	run()
boolean	shouldBackup() Checks if a backup needs to be made.
protected void	writeInternal(ObjectDataOutput out)

Methods inherited from class com.hazelcast.spi.impl.AbstractNamedOperation

getName, toString

Methods inherited from class com.hazelcast.spi.Operation

afterRun, call, executedLocally, getCallerAddress, getCallerUuid, getCallId, getCallTimeout, getConnection, getInvocationTime, getLogger, getNodeEngine, getOperationResponseHandler, getPartitionId, getReplicaIndex, getService, getServiceName, getWaitTimeout, isUrgent, logError, 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

CacheMergeOperation

public CacheMergeOperation()

CacheMergeOperation

public CacheMergeOperation(String name,
                           List<MergingEntryHolder<Data,Data>> mergingEntries,
                           SplitBrainMergePolicy mergePolicy)

Method Detail

beforeRun

public void beforeRun()
               throws Exception

Overrides:

beforeRun in class Operation

Throws:

Exception

run

public void run()

Overrides:

run in class Operation

getResponse

public Object getResponse()

Description copied from class: Operation

Called if and only if Operation.returnsResponse() returned true, shortly after Operation.run() returns.

Overrides:

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.

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.

writeInternal

protected void writeInternal(ObjectDataOutput out)
                      throws IOException

Overrides:

writeInternal in class AbstractNamedOperation

Throws:

IOException

readInternal

protected void readInternal(ObjectDataInput in)
                     throws IOException

Overrides:

readInternal in class AbstractNamedOperation

Throws:

IOException

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

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