K
- type of the keyV
- type of the valuepublic class KeyValueJobOperation<K,V> extends Operation implements IdentifiedDataSerializable
KeyValueSource
based
map reduce operation on all cluster members.Modifier and Type | Field and Description |
---|---|
static MemberSelector |
MEMBER_SELECTOR
Selects members that will run this operation
|
GENERIC_PARTITION_ID
Constructor and Description |
---|
KeyValueJobOperation() |
KeyValueJobOperation(String name,
String jobId,
int chunkSize,
KeyValueSource<K,V> keyValueSource,
Mapper mapper,
CombinerFactory combinerFactory,
ReducerFactory reducerFactory,
boolean communicateStats,
TopologyChangedStrategy topologyChangedStrategy) |
Modifier and Type | Method and Description |
---|---|
int |
getFactoryId()
Returns DataSerializableFactory factory ID for this class.
|
int |
getId()
Returns type identifier for this class.
|
Object |
getResponse()
Called if and only if
Operation.returnsResponse() returned true ,
shortly after Operation.run() returns. |
String |
getServiceName() |
void |
readInternal(ObjectDataInput in) |
void |
run()
Runs the operation.
|
protected void |
toString(StringBuilder sb)
A template method allows for additional information to be passed into
the
Operation.toString() method. |
void |
writeInternal(ObjectDataOutput out) |
afterRun, beforeRun, call, executedLocally, getCallerAddress, getCallerUuid, getCallId, getCallTimeout, getConnection, getInvocationTime, getLogger, getNodeEngine, getOperationResponseHandler, getPartitionId, getReplicaIndex, getService, getWaitTimeout, isUrgent, logError, onExecutionFailure, onInvocationException, onSetCallId, readData, requiresExplicitServiceName, returnsResponse, sendResponse, setCallerUuid, setNodeEngine, setOperationResponseHandler, setPartitionId, setReplicaIndex, setService, setServiceName, setValidateTarget, setWaitTimeout, toString, validatesTarget, writeData
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
readData, writeData
public static final MemberSelector MEMBER_SELECTOR
public KeyValueJobOperation()
public KeyValueJobOperation(String name, String jobId, int chunkSize, KeyValueSource<K,V> keyValueSource, Mapper mapper, CombinerFactory combinerFactory, ReducerFactory reducerFactory, boolean communicateStats, TopologyChangedStrategy topologyChangedStrategy)
public String getServiceName()
getServiceName
in class Operation
public void run() throws Exception
Operation
Operation.run()
or Operation.call()
method should be implemented; not both.
Runs after wait-support, supposed to do actual operationrun
in class Operation
Exception
Operation.call()
public Object getResponse()
Operation
Operation.returnsResponse()
returned true
,
shortly after Operation.run()
returns.getResponse
in class Operation
public void writeInternal(ObjectDataOutput out) throws IOException
writeInternal
in class Operation
IOException
public void readInternal(ObjectDataInput in) throws IOException
readInternal
in class Operation
IOException
public int getFactoryId()
IdentifiedDataSerializable
getFactoryId
in interface IdentifiedDataSerializable
public int getId()
IdentifiedDataSerializable
getId
in interface IdentifiedDataSerializable
protected void toString(StringBuilder sb)
Operation
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 to always call the super.toString(stringBuffer)
when implementing this method to make sure that the super class can
inject content if needed.Copyright © 2018 Hazelcast, Inc.. All Rights Reserved.