Package org.eclipse.rdf4j.query.algebra.evaluation.impl.evaluationsteps

Class ZeroLengthPathEvaluationStep

java.lang.Object

org.eclipse.rdf4j.query.algebra.evaluation.impl.evaluationsteps.ZeroLengthPathEvaluationStep

All Implemented Interfaces:

QueryEvaluationStep

public final class ZeroLengthPathEvaluationStep
extends Object
implements QueryEvaluationStep

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.rdf4j.query.algebra.evaluation.QueryEvaluationStep

QueryEvaluationStep.DelayedEvaluationIteration

Field Summary

Fields inherited from interface org.eclipse.rdf4j.query.algebra.evaluation.QueryEvaluationStep

EMPTY, EMPTY_ITERATION

Constructor Summary

Constructors

Constructor	Description
ZeroLengthPathEvaluationStep(Var subjectVar, Var objVar, Var contextVar, QueryValueEvaluationStep subPrep, QueryValueEvaluationStep objPrep, EvaluationStrategy strategy, QueryEvaluationContext context)

Method Summary

Modifier and Type	Method	Description
CloseableIteration<BindingSet,QueryEvaluationException>	evaluate(BindingSet bindings)
protected ZeroLengthPathIteration	getZeroLengthPathIterator(BindingSet bindings, Var subjectVar, Var objVar, Var contextVar, Value subj, Value obj, QueryEvaluationContext context)

Methods inherited from class java.lang.Object

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

Constructor Detail

ZeroLengthPathEvaluationStep

public ZeroLengthPathEvaluationStep(Var subjectVar,
                                    Var objVar,
                                    Var contextVar,
                                    QueryValueEvaluationStep subPrep,
                                    QueryValueEvaluationStep objPrep,
                                    EvaluationStrategy strategy,
                                    QueryEvaluationContext context)

Method Detail

evaluate

public CloseableIteration<BindingSet,QueryEvaluationException> evaluate(BindingSet bindings)

Specified by:

evaluate in interface QueryEvaluationStep

getZeroLengthPathIterator

protected ZeroLengthPathIteration getZeroLengthPathIterator(BindingSet bindings,
                                                            Var subjectVar,
                                                            Var objVar,
                                                            Var contextVar,
                                                            Value subj,
                                                            Value obj,
                                                            QueryEvaluationContext context)