org.janusgraph.diskstorage.util

Class ChunkedJobDefinition<T,C,R>

java.lang.Object

org.janusgraph.diskstorage.util.ChunkedJobDefinition<T,C,R>

Type Parameters:

T - single chunk of data

C - context for chunks processing job resume

R - final computed result

public class ChunkedJobDefinition<T,C,R>
extends Object

Class which is useful for data processing in chunks. The class is used to dynamically add new chunks of data into `dataChunks` queue and incrementally process those chunks over time. At the end of incremental data processing the future result object `result` must be completed either with the final computed result or with an exception in case data processing is failed at any stage.

Constructor Summary

Constructors

Constructor and Description
ChunkedJobDefinition()

Method Summary

Modifier and Type	Method and Description
void	complete(R resultData)
Queue<T>	getDataChunks()
C	getProcessedDataContext()
CompletableFuture<R>	getResult()
boolean	isLastChunkRetrieved()
void	setLastChunkRetrieved()
void	setProcessedDataContext(C processedDataContext)
boolean	tryLockProcessing()
void	unlockProcessing()

Methods inherited from class java.lang.Object

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

Constructor Detail

ChunkedJobDefinition

public ChunkedJobDefinition()

Method Detail

getDataChunks

public Queue<T> getDataChunks()

isLastChunkRetrieved

public boolean isLastChunkRetrieved()

setLastChunkRetrieved

public void setLastChunkRetrieved()

tryLockProcessing

public boolean tryLockProcessing()

unlockProcessing

public void unlockProcessing()

getProcessedDataContext

public C getProcessedDataContext()

setProcessedDataContext

public void setProcessedDataContext(C processedDataContext)

complete

public void complete(R resultData)

getResult

public CompletableFuture<R> getResult()