Class MemEvaluationStatistics.MemCardinalityCalculator

java.lang.Object

org.eclipse.rdf4j.query.algebra.helpers.AbstractQueryModelVisitor<RuntimeException>

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

org.eclipse.rdf4j.sail.memory.MemEvaluationStatistics.MemCardinalityCalculator

All Implemented Interfaces:

QueryModelVisitor<RuntimeException>

Enclosing class:

MemEvaluationStatistics

protected class MemEvaluationStatistics.MemCardinalityCalculator
extends EvaluationStatistics.CardinalityCalculator

Field Summary

Fields inherited from class EvaluationStatistics.CardinalityCalculator

cardinality

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	MemCardinalityCalculator()

Method Summary

Modifier and Type	Method	Description
double	getCardinality(StatementPattern sp)
protected Value	getConstantValue(Var var)
private int	minStatementCount(Value subj, Value pred, Value obj, Value context)

Methods inherited from class EvaluationStatistics.CardinalityCalculator

countConstantVars, getCardinality, getCardinality, getCardinality, getCardinality, getCardinality, getContextCardinality, getContextCardinality, getObjectCardinality, getObjectCardinality, getPredicateCardinality, getPredicateCardinality, getSubjectCardinality, getSubjectCardinality, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meetBinaryTupleOperator, meetNode, meetUnaryTupleOperator

Methods inherited from class AbstractQueryModelVisitor

meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meetBinaryValueOperator, meetCompareSubQueryValueOperator, meetNAryValueOperator, meetOther, meetSubQueryValueOperator, meetUnaryValueOperator, meetUpdateExpr

Methods inherited from class Object

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

Constructor Details

MemCardinalityCalculator

protected MemCardinalityCalculator()

Method Details

getCardinality

public double getCardinality(StatementPattern sp)

Overrides:

getCardinality in class EvaluationStatistics.CardinalityCalculator

minStatementCount

private int minStatementCount(Value subj,
 Value pred,
 Value obj,
 Value context)

getConstantValue

protected Value getConstantValue(Var var)