Module org.elasticsearch.compute

Package org.elasticsearch.compute.aggregation

Class FromPartialGroupingAggregatorFunction

java.lang.Object

org.elasticsearch.compute.aggregation.FromPartialGroupingAggregatorFunction

All Implemented Interfaces:

Closeable, AutoCloseable, GroupingAggregatorFunction, org.elasticsearch.core.Releasable

public class FromPartialGroupingAggregatorFunction
extends Object
implements GroupingAggregatorFunction

See Also:

• ToPartialGroupingAggregatorFunction

Nested Class Summary

Nested classes/interfaces inherited from interface org.elasticsearch.compute.aggregation.GroupingAggregatorFunction

GroupingAggregatorFunction.AddInput

Constructor Summary

Constructors

Constructor	Description
FromPartialGroupingAggregatorFunction(GroupingAggregatorFunction delegate, int inputChannel)

Method Summary

Modifier and Type	Method	Description
void	addIntermediateInput(int positionOffset, IntArrayBlock groupIdVector, Page page)	Add data produced by GroupingAggregatorFunction.evaluateIntermediate(org.elasticsearch.compute.data.Block[], int, org.elasticsearch.compute.data.IntVector).
void	addIntermediateInput(int positionOffset, IntBigArrayBlock groupIdVector, Page page)	Add data produced by GroupingAggregatorFunction.evaluateIntermediate(org.elasticsearch.compute.data.Block[], int, org.elasticsearch.compute.data.IntVector).
void	addIntermediateInput(int positionOffset, IntVector groupIdVector, Page page)	Add data produced by GroupingAggregatorFunction.evaluateIntermediate(org.elasticsearch.compute.data.Block[], int, org.elasticsearch.compute.data.IntVector).
void	close()
void	evaluateFinal(Block[] blocks, int offset, IntVector selected, GroupingAggregatorEvaluationContext evaluationContext)	Build the final results for this aggregation.
void	evaluateIntermediate(Block[] blocks, int offset, IntVector selected)	Build the intermediate results for this aggregation.
int	intermediateBlockCount()	The number of blocks used by intermediate state.
static List<IntermediateStateDesc>	intermediateStateDesc()
GroupingAggregatorFunction.AddInput	prepareProcessRawInputPage(SeenGroupIds seenGroupIds, Page page)	Prepare to process a single page of raw input.
void	selectedMayContainUnseenGroups(SeenGroupIds seenGroupIds)	Call this to signal to the aggregation that the selected parameter that's passed to GroupingAggregatorFunction.evaluateIntermediate(org.elasticsearch.compute.data.Block[], int, org.elasticsearch.compute.data.IntVector) or GroupingAggregatorFunction.evaluateFinal(org.elasticsearch.compute.data.Block[], int, org.elasticsearch.compute.data.IntVector, org.elasticsearch.compute.aggregation.GroupingAggregatorEvaluationContext) may reference groups that haven't been seen.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

FromPartialGroupingAggregatorFunction

public FromPartialGroupingAggregatorFunction(GroupingAggregatorFunction delegate,
 int inputChannel)

Method Details

intermediateStateDesc

public static List<IntermediateStateDesc> intermediateStateDesc()

prepareProcessRawInputPage

public GroupingAggregatorFunction.AddInput prepareProcessRawInputPage(SeenGroupIds seenGroupIds,
 Page page)

Description copied from interface: GroupingAggregatorFunction

Prepare to process a single page of raw input.

This should load the input Blocks and check their types and select an optimal path and return that path as an GroupingAggregatorFunction.AddInput.

Specified by:

prepareProcessRawInputPage in interface GroupingAggregatorFunction

selectedMayContainUnseenGroups

public void selectedMayContainUnseenGroups(SeenGroupIds seenGroupIds)

Description copied from interface: GroupingAggregatorFunction

Call this to signal to the aggregation that the selected parameter that's passed to GroupingAggregatorFunction.evaluateIntermediate(org.elasticsearch.compute.data.Block[], int, org.elasticsearch.compute.data.IntVector) or GroupingAggregatorFunction.evaluateFinal(org.elasticsearch.compute.data.Block[], int, org.elasticsearch.compute.data.IntVector, org.elasticsearch.compute.aggregation.GroupingAggregatorEvaluationContext) may reference groups that haven't been seen. This puts the underlying storage into a mode where it'll track which group ids have been seen, even if that increases the overhead.

Specified by:

selectedMayContainUnseenGroups in interface GroupingAggregatorFunction

addIntermediateInput

public void addIntermediateInput(int positionOffset,
 IntArrayBlock groupIdVector,
 Page page)

Description copied from interface: GroupingAggregatorFunction

Add data produced by GroupingAggregatorFunction.evaluateIntermediate(org.elasticsearch.compute.data.Block[], int, org.elasticsearch.compute.data.IntVector).

Specified by:

addIntermediateInput in interface GroupingAggregatorFunction

addIntermediateInput

public void addIntermediateInput(int positionOffset,
 IntBigArrayBlock groupIdVector,
 Page page)

Description copied from interface: GroupingAggregatorFunction

Add data produced by GroupingAggregatorFunction.evaluateIntermediate(org.elasticsearch.compute.data.Block[], int, org.elasticsearch.compute.data.IntVector).

Specified by:

addIntermediateInput in interface GroupingAggregatorFunction

addIntermediateInput

public void addIntermediateInput(int positionOffset,
 IntVector groupIdVector,
 Page page)

Description copied from interface: GroupingAggregatorFunction

Add data produced by GroupingAggregatorFunction.evaluateIntermediate(org.elasticsearch.compute.data.Block[], int, org.elasticsearch.compute.data.IntVector).

Specified by:

addIntermediateInput in interface GroupingAggregatorFunction

evaluateIntermediate

public void evaluateIntermediate(Block[] blocks,
 int offset,
 IntVector selected)

Description copied from interface: GroupingAggregatorFunction

Build the intermediate results for this aggregation.

Specified by:

evaluateIntermediate in interface GroupingAggregatorFunction

Parameters:

selected - the groupIds that have been selected to be included in the results. Always ascending.

evaluateFinal

public void evaluateFinal(Block[] blocks,
 int offset,
 IntVector selected,
 GroupingAggregatorEvaluationContext evaluationContext)

Description copied from interface: GroupingAggregatorFunction

Build the final results for this aggregation.

Specified by:

evaluateFinal in interface GroupingAggregatorFunction

Parameters:

selected - the groupIds that have been selected to be included in the results. Always ascending.

This function is called in the coordinator node after all intermediate results have been gathered from the worker nodes, and aggregated into intermediate blocks.

intermediateBlockCount

public int intermediateBlockCount()

Description copied from interface: GroupingAggregatorFunction

The number of blocks used by intermediate state.

Specified by:

intermediateBlockCount in interface GroupingAggregatorFunction

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface org.elasticsearch.core.Releasable

toString

public String toString()

Overrides:

toString in class Object