com.hazelcast.mapreduce.impl.client

Class ClientMapReduceRequest<KeyIn,ValueIn>

java.lang.Object

com.hazelcast.client.impl.client.ClientRequest

com.hazelcast.client.impl.client.InvocationClientRequest

com.hazelcast.mapreduce.impl.client.ClientMapReduceRequest<KeyIn,ValueIn>

Type Parameters:

KeyIn - type of the input key

ValueIn - type of the input value

All Implemented Interfaces:

SecureRequest, Portable, VersionedPortable

public class ClientMapReduceRequest<KeyIn,ValueIn>
extends InvocationClientRequest

This class is used to prepare and start a map reduce job emitted by a client on a random node in the cluster (making it the job owner).

Field Summary

Fields

Modifier and Type	Field and Description
protected int	chunkSize
protected CombinerFactory	combinerFactory
protected String	jobId
protected Collection	keys
protected KeyValueSource	keyValueSource
protected Mapper	mapper
protected String	name
protected KeyPredicate	predicate
protected ReducerFactory	reducerFactory
protected TopologyChangedStrategy	topologyChangedStrategy

Fields inherited from class com.hazelcast.client.impl.client.ClientRequest

callId, clientEngine, endpoint, operationService, serializationService, service

Constructor Summary

Constructors

Constructor and Description
ClientMapReduceRequest()
ClientMapReduceRequest(String name, String jobId, Collection keys, KeyPredicate predicate, Mapper mapper, CombinerFactory combinerFactory, ReducerFactory reducerFactory, KeyValueSource keyValueSource, int chunkSize, TopologyChangedStrategy topologyChangedStrategy)

Method Summary

Methods

Modifier and Type	Method and Description
int	getClassId() Returns class identifier for this portable class.
int	getFactoryId() Returns PortableFactory id for this portable class
Permission	getRequiredPermission()
String	getServiceName()
protected void	invoke()
void	read(PortableReader reader)
void	write(PortableWriter writer)

Methods inherited from class com.hazelcast.client.impl.client.InvocationClientRequest

createInvocationBuilder, createInvocationBuilder, process

Methods inherited from class com.hazelcast.client.impl.client.ClientRequest

getCallId, getClassVersion, getClientEngine, getDistributedObjectName, getDistributedObjectType, getEndpoint, getMethodName, getParameters, getService, readPortable, setCallId, setClientEngine, setEndpoint, setOperationService, setSerializationService, setService, writePortable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

name

protected String name

jobId

protected String jobId

keys

protected Collection keys

predicate

protected KeyPredicate predicate

mapper

protected Mapper mapper

combinerFactory

protected CombinerFactory combinerFactory

reducerFactory

protected ReducerFactory reducerFactory

keyValueSource

protected KeyValueSource keyValueSource

chunkSize

protected int chunkSize

topologyChangedStrategy

protected TopologyChangedStrategy topologyChangedStrategy

Constructor Detail

ClientMapReduceRequest

public ClientMapReduceRequest()

ClientMapReduceRequest

public ClientMapReduceRequest(String name,
                      String jobId,
                      Collection keys,
                      KeyPredicate predicate,
                      Mapper mapper,
                      CombinerFactory combinerFactory,
                      ReducerFactory reducerFactory,
                      KeyValueSource keyValueSource,
                      int chunkSize,
                      TopologyChangedStrategy topologyChangedStrategy)

Method Detail

invoke

protected void invoke()

Specified by:

invoke in class InvocationClientRequest

write

public void write(PortableWriter writer)
           throws IOException

Overrides:

write in class ClientRequest

Throws:

IOException

read

public void read(PortableReader reader)
          throws IOException

Overrides:

read in class ClientRequest

Throws:

IOException

getServiceName

public String getServiceName()

Specified by:

getServiceName in class ClientRequest

getFactoryId

public int getFactoryId()

Description copied from interface: Portable

Returns PortableFactory id for this portable class

Returns:

factory id

getClassId

public int getClassId()

Description copied from interface: Portable

Returns class identifier for this portable class. Class id should be unique per PortableFactory.

Returns:

class id

getRequiredPermission

public Permission getRequiredPermission()