Class FedXZeroLengthPathEvaluationStep
- java.lang.Object
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- org.eclipse.rdf4j.federated.evaluation.FedXZeroLengthPathEvaluationStep
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- All Implemented Interfaces:
QueryEvaluationStep
public final class FedXZeroLengthPathEvaluationStep extends Object implements QueryEvaluationStep
An evaluation step used forFedXZeroLengthPath
.- See Also:
ZeroLengthPathEvaluationStep
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Nested Class Summary
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Nested classes/interfaces inherited from interface org.eclipse.rdf4j.query.algebra.evaluation.QueryEvaluationStep
QueryEvaluationStep.DelayedEvaluationIteration
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Field Summary
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Fields inherited from interface org.eclipse.rdf4j.query.algebra.evaluation.QueryEvaluationStep
EMPTY, EMPTY_ITERATION
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Constructor Summary
Constructors Constructor Description 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 Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description CloseableIteration<BindingSet>
evaluate(BindingSet bindings)
protected FedXZeroLengthPathIteration
getZeroLengthPathIterator(BindingSet bindings, Var subjectVar, Var objVar, Var contextVar, Value subj, Value obj, QueryEvaluationContext context)
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Constructor Detail
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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 Detail
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evaluate
public CloseableIteration<BindingSet> evaluate(BindingSet bindings)
- 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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