com.hazelcast.internal.partition.operation

Class FetchPartitionStateOperation

java.lang.Object

com.hazelcast.spi.Operation

com.hazelcast.internal.partition.operation.FetchPartitionStateOperation

All Implemented Interfaces:

MigrationCycleOperation, DataSerializable, IdentifiedDataSerializable, AllowedDuringPassiveState, UrgentSystemOperation

public final class FetchPartitionStateOperation
extends Operation
implements MigrationCycleOperation

Operation sent by the master to the cluster members to fetch their partition state.

Field Summary

Fields inherited from class com.hazelcast.spi.Operation

GENERIC_PARTITION_ID

Constructor Summary

Constructors

Constructor and Description
FetchPartitionStateOperation()

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.
CallStatus	call() Call the operation and returns the CallStatus.
int	getFactoryId() Returns DataSerializableFactory factory ID for this class.
int	getId() Returns type identifier for this class.
String	getServiceName()
ExceptionAction	onInvocationException(Throwable throwable) Called when an Exception/Error is thrown during an invocation.

Methods inherited from class com.hazelcast.spi.Operation

afterRun, executedLocally, getCallerAddress, getCallerUuid, getCallId, getCallTimeout, getConnection, getInvocationTime, getLogger, getNodeEngine, getOperationResponseHandler, getPartitionId, getReplicaIndex, getResponse, getService, getWaitTimeout, isUrgent, logError, onExecutionFailure, onSetCallId, readData, readInternal, requiresExplicitServiceName, returnsResponse, run, sendResponse, setCallerUuid, setNodeEngine, setOperationResponseHandler, setPartitionId, setReplicaIndex, setService, setServiceName, setValidateTarget, setWaitTimeout, toString, toString, validatesTarget, writeData, writeInternal

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

FetchPartitionStateOperation

public FetchPartitionStateOperation()

Method Detail

beforeRun

public void beforeRun()

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

call

public CallStatus call()

Description copied from class: Operation

Call the operation and returns the CallStatus. An Operation should either implement call or run; not both. If run is implemented, then the system remains backwards compatible to prevent making massive code changes while adding this feature. In the future all Operation.run() methods will be replaced by call methods. The call method looks very much like the Operation.run() method and it is very close to Runnable.run() and Callable.call(). The main difference between a run and call, is that the returned CallStatus from the call can tell something about the actual execution. For example it could tell that some waiting is required in case of a BlockingOperation. Or that the actual execution work is offloaded to some executor in case of an Offloadable EntryOperation. In the future new types of CallStatus are expected to be added, e.g. for interleaving. In the future it is very likely that for regular Operation that want to return a concrete response, the actual response can be returned directly. In this case we'll change the return type to Object to prevent forcing the response to be wrapped in a CallStatus.DONE_RESPONSE monad since that would force additional litter to be created.

Overrides:

call in class Operation

Returns:

the CallStatus.

See Also:

Operation.run()

onInvocationException

public ExceptionAction onInvocationException(Throwable throwable)

Description copied from class: Operation

Called when an Exception/Error is thrown during an invocation. Invocation process will continue, it will retry or fail according to returned ExceptionAction.

This method is called on caller side of the invocation.

Overrides:

onInvocationException in class Operation

Parameters:

throwable - Exception/Error thrown during invocation

Returns:

ExceptionAction

getServiceName

public String getServiceName()

Overrides:

getServiceName 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

getFactoryId

public final int getFactoryId()

Description copied from interface: IdentifiedDataSerializable

Returns DataSerializableFactory factory ID for this class.

Specified by:

getFactoryId in interface IdentifiedDataSerializable

Returns:

factory ID