Package io.trino.operator.aggregation.partial

Class SkipAggregationBuilder

java.lang.Object

io.trino.operator.aggregation.partial.SkipAggregationBuilder

All Implemented Interfaces:

HashAggregationBuilder, AutoCloseable

public class SkipAggregationBuilder
extends Object
implements HashAggregationBuilder

HashAggregationBuilder that does not aggregate input rows at all. It passes the input pages, augmented with initial accumulator state to the output. It can only be used at the partial aggregation step as it relies on rows be aggregated at the final step.

Constructor Summary

Constructors

Constructor	Description
SkipAggregationBuilder(List<Integer> groupByChannels, Optional<Integer> inputHashChannel, List<AggregatorFactory> aggregatorFactories, LocalMemoryContext memoryContext)

Method Summary

Modifier and Type	Method	Description
WorkProcessor<Page>	buildResult()
void	close()
void	finishMemoryRevoke()
boolean	isFull()
Work<?>	processPage(Page page)
com.google.common.util.concurrent.ListenableFuture<Void>	startMemoryRevoke()
void	updateMemory()

Methods inherited from class java.lang.Object

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

Constructor Details

SkipAggregationBuilder

public SkipAggregationBuilder(List<Integer> groupByChannels,
 Optional<Integer> inputHashChannel,
 List<AggregatorFactory> aggregatorFactories,
 LocalMemoryContext memoryContext)

Method Details

processPage

public Work<?> processPage(Page page)

Specified by:

processPage in interface HashAggregationBuilder

buildResult

public WorkProcessor<Page> buildResult()

Specified by:

buildResult in interface HashAggregationBuilder

isFull

public boolean isFull()

Specified by:

isFull in interface HashAggregationBuilder

updateMemory

public void updateMemory()

Specified by:

updateMemory in interface HashAggregationBuilder

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface HashAggregationBuilder

startMemoryRevoke

public com.google.common.util.concurrent.ListenableFuture<Void> startMemoryRevoke()

Specified by:

startMemoryRevoke in interface HashAggregationBuilder

finishMemoryRevoke

public void finishMemoryRevoke()

Specified by:

finishMemoryRevoke in interface HashAggregationBuilder