com.hazelcast.mapreduce.impl.operation

Class StartProcessingJobOperation<K>

java.lang.Object

com.hazelcast.spi.Operation

com.hazelcast.mapreduce.impl.operation.StartProcessingJobOperation<K>

Type Parameters:

K - type of the key

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable

public class StartProcessingJobOperation<K>
extends Operation
implements IdentifiedDataSerializable

This operation is used to start the actual processing after all node prepared to execute the map reduce job

Field Summary

Fields inherited from class com.hazelcast.spi.Operation

GENERIC_PARTITION_ID

Constructor Summary

Constructors

Constructor and Description
StartProcessingJobOperation()
StartProcessingJobOperation(String name, String jobId, Collection<K> keys, KeyPredicate<? super K> predicate)

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()
void	readInternal(ObjectDataInput in)
boolean	returnsResponse() Method is intended to be overridden.
void	run() Runs the operation.
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

StartProcessingJobOperation

public StartProcessingJobOperation()

StartProcessingJobOperation

public StartProcessingJobOperation(String name,
                                   String jobId,
                                   Collection<K> keys,
                                   KeyPredicate<? super K> predicate)

Method Detail

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 String getServiceName()

Overrides:

getServiceName in class Operation

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()

writeInternal

public void writeInternal(ObjectDataOutput out)
                   throws IOException

Overrides:

writeInternal in class Operation

Throws:

IOException

readInternal

public void readInternal(ObjectDataInput in)
                  throws IOException

Overrides:

readInternal in class Operation

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