Class ServiceQueryEvaluationStep

java.lang.Object

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

All Implemented Interfaces:

QueryEvaluationStep

public final class ServiceQueryEvaluationStep
extends Object
implements QueryEvaluationStep

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	ServiceQueryEvaluationStep.BoundVarVisitor

Nested classes/interfaces inherited from interface QueryEvaluationStep

QueryEvaluationStep.DelayedEvaluationIteration

Field Summary

Fields

Modifier and Type	Field	Description
private final Service	service
private final Var	serviceRef
private final FederatedServiceResolver	serviceResolver

Fields inherited from interface QueryEvaluationStep

EMPTY, EMPTY_ITERATION

Constructor Summary

Constructors

Constructor	Description
ServiceQueryEvaluationStep(Service service, Var serviceRef, FederatedServiceResolver serviceResolver)

Method Summary

Modifier and Type	Method	Description
CloseableIteration<BindingSet, QueryEvaluationException>	evaluate(BindingSet bindings)
private Set<Var>	getBoundVariables(Service service)

Methods inherited from class Object

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

Field Details

service

private final Service service

serviceRef

private final Var serviceRef

serviceResolver

private final FederatedServiceResolver serviceResolver

Constructor Details

ServiceQueryEvaluationStep

public ServiceQueryEvaluationStep(Service service,
 Var serviceRef,
 FederatedServiceResolver serviceResolver)

Method Details

evaluate

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

Specified by:

evaluate in interface QueryEvaluationStep

getBoundVariables

private Set<Var> getBoundVariables(Service service)