com.hazelcast.internal.cluster.impl.operations

Class HeartbeatOp

java.lang.Object

com.hazelcast.spi.Operation

com.hazelcast.internal.cluster.impl.operations.HeartbeatOp

All Implemented Interfaces:

JoinOperation, DataSerializable, IdentifiedDataSerializable, Versioned, AllowedDuringPassiveState, UrgentSystemOperation

public final class HeartbeatOp
extends Operation
implements Versioned

A heartbeat sent from one cluster member to another. The sent timestamp is the cluster clock time of the sending member

Field Summary

Fields inherited from class com.hazelcast.spi.Operation

GENERIC_PARTITION_ID

Constructor Summary

Constructors

Constructor and Description
HeartbeatOp()
HeartbeatOp(MembersViewMetadata senderMembersViewMetadata, String targetUuid, long timestamp)

Method Summary

Modifier and Type	Method and Description
int	getFactoryId() Returns DataSerializableFactory factory ID for this class.
int	getId() Returns type identifier for this class.
String	getServiceName()
protected void	readInternal(ObjectDataInput in)
boolean	returnsResponse() Method is intended to be overridden.
void	run() Runs the operation.
protected void	writeInternal(ObjectDataOutput out)

Methods inherited from class com.hazelcast.spi.Operation

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

Constructor Detail

HeartbeatOp

public HeartbeatOp()

HeartbeatOp

public HeartbeatOp(MembersViewMetadata senderMembersViewMetadata,
                   String targetUuid,
                   long timestamp)

Method Detail

run

public void run()

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

See Also:

Operation.call()

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

returnsResponse

public boolean returnsResponse()

Description copied from class: Operation

Method is intended to be overridden. If it returns true, Operation.getResponse() will be called right after Operation.run() method. If it returns false, Operation.sendResponse(Object) must be called later to finish the operation.

In other words, true is for synchronous operation and false is for asynchronous one.

Default implementation is synchronous operation (true).

Overrides:

returnsResponse in class Operation

getServiceName

public final 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