org.apache.drill.exec.physical.impl.partitionsender

Interface Partitioner

All Known Implementing Classes:

PartitionerTemplate

public interface Partitioner

Field Summary

Fields

Modifier and Type	Field and Description
static TemplateClassDefinition<Partitioner>	TEMPLATE_DEFINITION

Method Summary

Methods

Modifier and Type	Method and Description
void	clear()
void	flushOutgoingBatches(boolean isLastBatch, boolean schemaChanged)
PartitionOutgoingBatch	getOutgoingBatch(int index) Method to get PartitionOutgoingBatch based on the fact that there can be > 1 Partitioner
List<? extends PartitionOutgoingBatch>	getOutgoingBatches()
OperatorStats	getStats()
void	initialize()
void	partitionBatch(RecordBatch incoming)
void	setup(FragmentContext context, RecordBatch incoming, HashPartitionSender popConfig, OperatorStats stats, OperatorContext oContext, int start, int count)

Field Detail

TEMPLATE_DEFINITION

static final TemplateClassDefinition<Partitioner> TEMPLATE_DEFINITION

Method Detail

setup

void setup(FragmentContext context,
         RecordBatch incoming,
         HashPartitionSender popConfig,
         OperatorStats stats,
         OperatorContext oContext,
         int start,
         int count)
           throws SchemaChangeException

Throws:

SchemaChangeException

partitionBatch

void partitionBatch(RecordBatch incoming)
                    throws IOException

Throws:

IOException

flushOutgoingBatches

void flushOutgoingBatches(boolean isLastBatch,
                        boolean schemaChanged)
                          throws IOException

Throws:

IOException

initialize

void initialize()

clear

void clear()

getOutgoingBatches

List<? extends PartitionOutgoingBatch> getOutgoingBatches()

getOutgoingBatch

PartitionOutgoingBatch getOutgoingBatch(int index)

Method to get PartitionOutgoingBatch based on the fact that there can be > 1 Partitioner

Parameters:

index -

Returns:

PartitionOutgoingBatch that matches index within Partitioner. This method can return null if index does not fall within boundary of this Partitioner

getStats

OperatorStats getStats()