org.apache.drill.exec.work.batch

Class AbstractDataCollector

java.lang.Object

org.apache.drill.exec.work.batch.AbstractDataCollector

Direct Known Subclasses:

MergingCollector, PartitionedCollector

public abstract class AbstractDataCollector
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
protected RawBatchBuffer[]	buffers
protected ArrayWrappedIntIntMap	fragmentMap
static org.slf4j.Logger	logger

Constructor Summary

Constructors

Constructor and Description
AbstractDataCollector(AtomicInteger parentAccounter, int numBuffers, BitControl.Collector collector, int bufferCapacity, FragmentContext context)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	batchArrived(int minorFragmentId, RawFragmentBatch batch)
void	close()
protected abstract RawBatchBuffer	getBuffer(int minorFragmentId)
RawBatchBuffer[]	getBuffers()
int	getOppositeMajorFragmentId()
int	getTotalIncomingFragments()

Methods inherited from class java.lang.Object

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

Field Detail

buffers

protected final RawBatchBuffer[] buffers

fragmentMap

protected final ArrayWrappedIntIntMap fragmentMap

logger

public static final org.slf4j.Logger logger

Constructor Detail

AbstractDataCollector

public AbstractDataCollector(AtomicInteger parentAccounter,
                     int numBuffers,
                     BitControl.Collector collector,
                     int bufferCapacity,
                     FragmentContext context)

Parameters:

parentAccounter -

receiver -

numBuffers - Number of RawBatchBuffer inputs required to store the incoming data

bufferCapacity - Capacity of each RawBatchBuffer.

context -

Method Detail

getOppositeMajorFragmentId

public int getOppositeMajorFragmentId()

getBuffers

public RawBatchBuffer[] getBuffers()

batchArrived

public boolean batchArrived(int minorFragmentId,
                   RawFragmentBatch batch)
                     throws IOException

Throws:

IOException

getTotalIncomingFragments

public int getTotalIncomingFragments()

getBuffer

protected abstract RawBatchBuffer getBuffer(int minorFragmentId)

close

public void close()
           throws Exception

Throws:

Exception