Class FedXZeroLengthPathEvaluationStep
java.lang.Object
org.eclipse.rdf4j.federated.evaluation.FedXZeroLengthPathEvaluationStep
- All Implemented Interfaces:
QueryEvaluationStep
An evaluation step used for
FedXZeroLengthPath
.- See Also:
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Nested Class Summary
Nested classes/interfaces inherited from interface org.eclipse.rdf4j.query.algebra.evaluation.QueryEvaluationStep
QueryEvaluationStep.DelayedEvaluationIteration
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Field Summary
Fields inherited from interface org.eclipse.rdf4j.query.algebra.evaluation.QueryEvaluationStep
EMPTY, EMPTY_ITERATION
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Constructor Summary
ConstructorDescriptionFedXZeroLengthPathEvaluationStep
(Var subjectVar, Var objVar, Var contextVar, QueryValueEvaluationStep subPrep, QueryValueEvaluationStep objPrep, EvaluationStrategy strategy, QueryEvaluationContext context, Supplier<List<StatementSource>> statementSources, Supplier<QueryInfo> queryInfo) -
Method Summary
Modifier and TypeMethodDescriptionevaluate
(BindingSet bindings) protected FedXZeroLengthPathIteration
getZeroLengthPathIterator
(BindingSet bindings, Var subjectVar, Var objVar, Var contextVar, Value subj, Value obj, QueryEvaluationContext context)
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Constructor Details
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FedXZeroLengthPathEvaluationStep
public FedXZeroLengthPathEvaluationStep(Var subjectVar, Var objVar, Var contextVar, QueryValueEvaluationStep subPrep, QueryValueEvaluationStep objPrep, EvaluationStrategy strategy, QueryEvaluationContext context, Supplier<List<StatementSource>> statementSources, Supplier<QueryInfo> queryInfo)
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Method Details
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evaluate
- Specified by:
evaluate
in interfaceQueryEvaluationStep
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getZeroLengthPathIterator
protected FedXZeroLengthPathIteration getZeroLengthPathIterator(BindingSet bindings, Var subjectVar, Var objVar, Var contextVar, Value subj, Value obj, QueryEvaluationContext context)
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