com.hazelcast.mapreduce.impl.operation
Class KeyValueJobOperation<K,V>

java.lang.Object
  com.hazelcast.spi.Operation
      com.hazelcast.spi.AbstractOperation
          com.hazelcast.mapreduce.impl.operation.KeyValueJobOperation<K,V>

Type Parameters:

K - type of the key

V - type of the value

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable, RemotePropagatable<Operation>

public class KeyValueJobOperation<K,V>
extends AbstractOperation
implements IdentifiedDataSerializable

This operation is used to prepare a KeyValueSource based map reduce operation on all cluster members.

Constructor Summary

KeyValueJobOperation()

KeyValueJobOperation(String name, String jobId, int chunkSize, KeyValueSource<K,V> keyValueSource, Mapper mapper, CombinerFactory combinerFactory, ReducerFactory reducerFactory, boolean communicateStats, TopologyChangedStrategy topologyChangedStrategy)

Method Summary

int	getFactoryId() Returns DataSerializableFactory factory id for this class.
int	getId() Returns type identifier for this class.
Object	getResponse()
String	getServiceName()
void	readInternal(ObjectDataInput in)
boolean	returnsResponse()
void	run()
void	writeInternal(ObjectDataOutput out)

Methods inherited from class com.hazelcast.spi.AbstractOperation

afterRun, beforeRun

Methods inherited from class com.hazelcast.spi.Operation

getCallerAddress, getCallerUuid, getCallId, getCallTimeout, getConnection, getExecutorName, getInvocationTime, getLogger, getNodeEngine, getPartitionId, getReplicaIndex, getResponseHandler, getService, getWaitTimeout, isUrgent, logError, onException, readData, setCallerUuid, setExecutorName, setNodeEngine, setPartitionId, setReplicaIndex, setResponseHandler, 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.DataSerializable

readData, writeData

Constructor Detail

KeyValueJobOperation

public KeyValueJobOperation()

KeyValueJobOperation

public KeyValueJobOperation(String name,
                            String jobId,
                            int chunkSize,
                            KeyValueSource<K,V> keyValueSource,
                            Mapper mapper,
                            CombinerFactory combinerFactory,
                            ReducerFactory reducerFactory,
                            boolean communicateStats,
                            TopologyChangedStrategy topologyChangedStrategy)

Method Detail

getServiceName

public String getServiceName()

Overrides:

getServiceName in class Operation

run

public void run()
         throws Exception

Specified by:

run in class Operation

Throws:

Exception

returnsResponse

public boolean returnsResponse()

Specified by:

returnsResponse in interface RemotePropagatable<Operation>

Overrides:

returnsResponse in class AbstractOperation

getResponse

public Object getResponse()

Overrides:

getResponse in class AbstractOperation

writeInternal

public void writeInternal(ObjectDataOutput out)
                   throws IOException

Overrides:

writeInternal in class AbstractOperation

Throws:

IOException

readInternal

public void readInternal(ObjectDataInput in)
                  throws IOException

Overrides:

readInternal in class AbstractOperation

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. Id should be unique per DataSerializableFactory.

Specified by:

getId in interface IdentifiedDataSerializable

Returns:

type id