Class ExtensibleEvaluationStatistics

java.lang.Object

org.eclipse.rdf4j.query.algebra.evaluation.impl.EvaluationStatistics

org.eclipse.rdf4j.sail.extensiblestore.evaluationstatistics.ExtensibleEvaluationStatistics

Direct Known Subclasses:

ExtensibleConstantEvaluationStatistics, ExtensibleDirectEvaluationStatistics, ExtensibleDynamicEvaluationStatistics

@Experimental
public abstract class ExtensibleEvaluationStatistics
extends EvaluationStatistics

Nested Class Summary

Nested classes/interfaces inherited from class EvaluationStatistics

EvaluationStatistics.CardinalityCalculator, EvaluationStatistics.FilterPassEstimate

Modifier and Type	Class	Description
protected static class	EvaluationStatistics.CardinalityCalculator
static final class	EvaluationStatistics.FilterPassEstimate

Constructor Summary

Constructors

Constructor	Description
ExtensibleEvaluationStatistics(ExtensibleSailStore extensibleSailStore)

Method Summary

Modifier and Type	Method	Description
protected abstract EvaluationStatistics.CardinalityCalculator	createCardinalityCalculator()

Methods inherited from class EvaluationStatistics

estimateFilterPass, estimateFilterPassRatio, getCardinality, recordFilterOutcome, supportsFilterSelectivityCosting, supportsJoinEstimation

Modifier and Type	Method	Description
EvaluationStatistics.FilterPassEstimate	estimateFilterPass(Filter filter)
double	estimateFilterPassRatio(Filter filter)
double	getCardinality(TupleExpr expr)
void	recordFilterOutcome(Filter filter, long passedCount, long filteredCount)
boolean	supportsFilterSelectivityCosting()
boolean	supportsJoinEstimation()

Methods inherited from class Object

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

Constructor Details

ExtensibleEvaluationStatistics

public ExtensibleEvaluationStatistics(ExtensibleSailStore extensibleSailStore)

Method Details

createCardinalityCalculator

protected abstract EvaluationStatistics.CardinalityCalculator createCardinalityCalculator()

Overrides:

createCardinalityCalculator in class EvaluationStatistics