Package io.trino.operator.join

Class PageJoiner

java.lang.Object

io.trino.operator.join.PageJoiner

All Implemented Interfaces:

WorkProcessor.Transformation<Page,Page>

public class PageJoiner
extends Object
implements WorkProcessor.Transformation<Page,Page>

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	PageJoiner.PageJoinerFactory
static class	PageJoiner.SavedRow

Constructor Summary

Constructors

Constructor

Description

PageJoiner(ProcessorContext processorContext, List<Type> probeTypes, List<Type> buildOutputTypes, LookupJoinOperatorFactory.JoinType joinType, boolean outputSingleMatch, HashGenerator hashGenerator, JoinProbe.JoinProbeFactory joinProbeFactory, LookupSourceFactory lookupSourceFactory, com.google.common.util.concurrent.ListenableFuture<LookupSourceProvider> lookupSourceProvider, Optional<PartitioningSpillerFactory> partitioningSpillerFactory, JoinStatisticsCounter statisticsCounter, Iterator<PageJoiner.SavedRow> savedRows)

Method Summary

Modifier and Type	Method	Description
void	close()
Map<Integer,PageJoiner.SavedRow>	getSpilledRows()
Optional<PartitioningSpiller>	getSpiller()
WorkProcessor.TransformationState<Page>	process(Page probePage)	Processes input elements and returns current transformation state.

Methods inherited from class java.lang.Object

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

Constructor Detail

PageJoiner

public PageJoiner(ProcessorContext processorContext,
                  List<Type> probeTypes,
                  List<Type> buildOutputTypes,
                  LookupJoinOperatorFactory.JoinType joinType,
                  boolean outputSingleMatch,
                  HashGenerator hashGenerator,
                  JoinProbe.JoinProbeFactory joinProbeFactory,
                  LookupSourceFactory lookupSourceFactory,
                  com.google.common.util.concurrent.ListenableFuture<LookupSourceProvider> lookupSourceProvider,
                  Optional<PartitioningSpillerFactory> partitioningSpillerFactory,
                  JoinStatisticsCounter statisticsCounter,
                  Iterator<PageJoiner.SavedRow> savedRows)

Method Detail

getSpilledRows

public Map<Integer,PageJoiner.SavedRow> getSpilledRows()

getSpiller

public Optional<PartitioningSpiller> getSpiller()

close

public void close()

process

public WorkProcessor.TransformationState<Page> process(@Nullable
                                                       Page probePage)

Description copied from interface: WorkProcessor.Transformation

Processes input elements and returns current transformation state.

Specified by:

process in interface WorkProcessor.Transformation<Page,Page>

Parameters:

probePage - an element to be transformed. Will be null when there are no more elements. In such case transformation should finish processing and flush any remaining data.

Returns:

the current transformation state, optionally bearing a result

See Also:

WorkProcessor.TransformationState.needsMoreData(), WorkProcessor.TransformationState.blocked(ListenableFuture), WorkProcessor.TransformationState.yield(), WorkProcessor.TransformationState.ofResult(Object), WorkProcessor.TransformationState.ofResult(Object, boolean), WorkProcessor.TransformationState.finished()