Class TupleFunctionEvaluationStatistics.TupleFunctionCardinalityCalculator

java.lang.Object

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

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

org.eclipse.rdf4j.query.algebra.evaluation.impl.TupleFunctionEvaluationStatistics.TupleFunctionCardinalityCalculator

All Implemented Interfaces:

QueryModelVisitor<RuntimeException>

Enclosing class:

TupleFunctionEvaluationStatistics

protected static class TupleFunctionEvaluationStatistics.TupleFunctionCardinalityCalculator
extends EvaluationStatistics.CardinalityCalculator

Field Summary

Fields inherited from class EvaluationStatistics.CardinalityCalculator

cardinality

Modifier and Type	Field	Description
protected double	cardinality

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	TupleFunctionCardinalityCalculator()

Method Summary

Modifier and Type	Method	Description
protected void	meetNode(QueryModelNode node)	Method called by all of the other meet methods that are not overridden in subclasses.

Methods inherited from class EvaluationStatistics.CardinalityCalculator

countConstantVars, getCardinality, 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, meetUnaryTupleOperator

Modifier and Type	Method	Description
protected int	countConstantVars(Iterable<Var> vars)
double	getCardinality()
protected double	getCardinality(double varCardinality, Collection<Var> vars)
protected double	getCardinality(double varCardinality, Var var)
protected double	getCardinality(BindingSetAssignment bindingSetAssignment)
protected double	getCardinality(StatementPattern sp)
protected double	getCardinality(TripleRef tripleRef)
protected double	getContextCardinality(StatementPattern sp)	Override this if you are able to determine the cardinality based not only on the contextVar itself but also the other vars (e.g. the subject value might determine a context subset).
protected double	getContextCardinality(Var var)
protected double	getObjectCardinality(StatementPattern sp)	Override this if you are able to determine the cardinality based not only on the objectVar itself but also the other vars (e.g. the predicate value might determine an object subset).
protected double	getObjectCardinality(Var var)
protected double	getPredicateCardinality(StatementPattern sp)	Override this if you are able to determine the cardinality based not only on the predicateVar itself but also the other vars (e.g. the subject value might determine a predicate subset).
protected double	getPredicateCardinality(Var var)
protected double	getSubjectCardinality(StatementPattern sp)	Override this if you are able to determine the cardinality based not only on the subjectVar itself but also the other vars (e.g. the predicate value might determine a subject subset).
protected double	getSubjectCardinality(Var var)
void	meet(ArbitraryLengthPath node)
void	meet(BindingSetAssignment node)
void	meet(EmptySet node)
void	meet(Join node)
void	meet(LeftJoin node)
void	meet(QueryRoot node)
void	meet(Service node)
void	meet(SingletonSet node)
void	meet(StatementPattern sp)
void	meet(TripleRef tripleRef)
void	meet(ZeroLengthPath node)
protected void	meetBinaryTupleOperator(BinaryTupleOperator node)	Method called by all meet methods with a BinaryTupleOperator node as argument.
protected void	meetUnaryTupleOperator(UnaryTupleOperator node)	Method called by all meet methods with a UnaryTupleOperator node as argument.

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

Modifier and Type	Method	Description
void	meet(Add node)
void	meet(AggregateFunctionCall node)
void	meet(And node)
void	meet(Avg node)
void	meet(BNodeGenerator node)
void	meet(Bound node)
void	meet(Clear node)
void	meet(Coalesce node)
void	meet(Compare node)
void	meet(CompareAll node)
void	meet(CompareAny node)
void	meet(Copy node)
void	meet(Count node)
void	meet(Create node)
void	meet(Datatype node)
void	meet(DeleteData node)
void	meet(DescribeOperator node)
void	meet(Difference node)
void	meet(Distinct node)
void	meet(Exists node)
void	meet(Extension node)
void	meet(ExtensionElem node)
void	meet(Filter node)
void	meet(FunctionCall node)
void	meet(Group node)
void	meet(GroupConcat node)
void	meet(GroupElem node)
void	meet(If node)
void	meet(In node)
void	meet(InsertData node)
void	meet(Intersection node)
void	meet(IRIFunction node)
void	meet(IsBNode node)
void	meet(IsLiteral node)
void	meet(IsNumeric node)
void	meet(IsResource node)
void	meet(IsURI node)
void	meet(Label node)
void	meet(Lang node)
void	meet(LangMatches node)
void	meet(ListMemberOperator node)
void	meet(Load node)
void	meet(LocalName node)
void	meet(MathExpr node)
void	meet(Max node)
void	meet(Min node)
void	meet(Modify node)
void	meet(Move node)
void	meet(MultiProjection node)
void	meet(Namespace node)
void	meet(Not node)
void	meet(Or node)
void	meet(Order node)
void	meet(OrderElem node)
void	meet(Projection node)
void	meet(ProjectionElem node)
void	meet(ProjectionElemList node)
void	meet(Reduced node)
void	meet(Regex node)
void	meet(SameTerm node)
void	meet(Sample node)
void	meet(Slice node)
void	meet(Str node)
void	meet(Sum node)
void	meet(Union node)
void	meet(ValueConstant node)
void	meet(ValueExprTripleRef node)
void	meet(Var node)
protected void	meetBinaryValueOperator(BinaryValueOperator node)	Method called by all meet methods with a BinaryValueOperator node as argument.
protected void	meetCompareSubQueryValueOperator(CompareSubQueryValueOperator node)	Method called by all meet methods with a CompareSubQueryValueOperator node as argument.
protected void	meetNAryValueOperator(NAryValueOperator node)	Method called by all meet methods with a NAryValueOperator node as argument.
void	meetOther(QueryModelNode node)
protected void	meetSubQueryValueOperator(SubQueryValueOperator node)	Method called by all meet methods with a SubQueryValueOperator node as argument.
protected void	meetUnaryValueOperator(UnaryValueOperator node)	Method called by all meet methods with a UnaryValueOperator node as argument.
protected void	meetUpdateExpr(UpdateExpr node)	Method called by all meet methods with a UpdateExpr node as argument.

Methods inherited from class Object

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

Constructor Details

TupleFunctionCardinalityCalculator

protected TupleFunctionCardinalityCalculator()

Method Details

meetNode

protected void meetNode(QueryModelNode node)

Description copied from class: AbstractQueryModelVisitor

Method called by all of the other meet methods that are not overridden in subclasses. This method can be overridden in subclasses to define default behaviour when visiting nodes. The default behaviour of this method is to visit the node's children.

Overrides:

meetNode in class EvaluationStatistics.CardinalityCalculator

Parameters:

node - The node that is being visited.