com.hazelcast.executor.impl.operations

Class CallableTaskOperation

java.lang.Object

com.hazelcast.spi.Operation

com.hazelcast.executor.impl.operations.CallableTaskOperation

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable, MutatingOperation, NamedOperation

public final class CallableTaskOperation
extends Operation
implements IdentifiedDataSerializable, MutatingOperation

Field Summary

Fields

Modifier and Type	Field and Description
protected String	name
protected String	uuid

Fields inherited from class com.hazelcast.spi.Operation

GENERIC_PARTITION_ID

Constructor Summary

Constructors

Constructor and Description
CallableTaskOperation()
CallableTaskOperation(String name, String uuid, Data callableData)

Method Summary

Modifier and Type	Method and Description
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	getName() Returns the name of the distributed data structure.
String	getServiceName()
protected void	readInternal(ObjectDataInput in)
protected void	toString(StringBuilder sb) A template method allows for additional information to be passed into the Operation.toString() method.
protected void	writeInternal(ObjectDataOutput out)

Methods inherited from class com.hazelcast.spi.Operation

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

getFactoryId

Methods inherited from interface com.hazelcast.nio.serialization.DataSerializable

readData, writeData

Field Detail

name

protected String name

uuid

protected String uuid

Constructor Detail

CallableTaskOperation

public CallableTaskOperation()

CallableTaskOperation

public CallableTaskOperation(String name,
                             String uuid,
                             Data callableData)

Method Detail

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

call

public final 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 the 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.

getName

public String getName()

Description copied from interface: NamedOperation

Returns the name of the distributed data structure.

Specified by:

getName in interface NamedOperation

Returns:

String name of the distributed data structure.

getServiceName

public String getServiceName()

Overrides:

getServiceName in class Operation

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

toString

protected void toString(StringBuilder sb)

Description copied from class: Operation

A template method allows for additional information to be passed into the Operation.toString() method. So an Operation subclass can override this method and add additional debugging content. The default implementation does nothing so one is not forced to provide an empty implementation. It is a good practice always to call the super.toString(stringBuffer) when implementing this method to make sure that the super class can inject content if needed.

Overrides:

toString in class Operation

Parameters:

sb - the StringBuilder to add the debug info to.

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