Package io.trino.operator.join.unspilled

Class PageJoiner

java.lang.Object

io.trino.operator.join.unspilled.PageJoiner

All Implemented Interfaces:

WorkProcessor.Transformation<Page,Page>, Closeable, AutoCloseable

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

Constructor Summary

Constructors

Constructor	Description
PageJoiner(ProcessorContext processorContext, List<Type> buildOutputTypes, LookupJoinOperatorFactory.JoinType joinType, boolean outputSingleMatch, JoinProbe.JoinProbeFactory joinProbeFactory, com.google.common.util.concurrent.ListenableFuture<LookupSource> lookupSource, JoinStatisticsCounter statisticsCounter)

Method Summary

Modifier and Type	Method	Description
void	close()
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 Details

PageJoiner

public PageJoiner(ProcessorContext processorContext,
 List<Type> buildOutputTypes,
 LookupJoinOperatorFactory.JoinType joinType,
 boolean outputSingleMatch,
 JoinProbe.JoinProbeFactory joinProbeFactory,
 com.google.common.util.concurrent.ListenableFuture<LookupSource> lookupSource,
 JoinStatisticsCounter statisticsCounter)

Method Details

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

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.yielded()
• WorkProcessor.TransformationState.ofResult(Object)
• WorkProcessor.TransformationState.ofResult(Object, boolean)
• WorkProcessor.TransformationState.finished()