Class JoinQueryEvaluationStep

java.lang.Object

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

All Implemented Interfaces:

QueryEvaluationStep

public class JoinQueryEvaluationStep
extends Object
implements QueryEvaluationStep

Nested Class Summary

Nested classes/interfaces inherited from interface QueryEvaluationStep

QueryEvaluationStep.DelayedEvaluationIteration

Field Summary

Fields

Modifier and Type	Field	Description
private final Function<BindingSet, CloseableIteration<BindingSet, QueryEvaluationException>>	eval

Fields inherited from interface QueryEvaluationStep

EMPTY, EMPTY_ITERATION

Constructor Summary

Constructors

Constructor	Description
JoinQueryEvaluationStep(EvaluationStrategy strategy, Join join, QueryEvaluationContext context)

Method Summary

Modifier and Type	Method	Description
CloseableIteration<BindingSet, QueryEvaluationException>	evaluate(BindingSet bindings)
private static boolean	isOutOfScopeForLeftArgBindings(TupleExpr expr)

Methods inherited from class Object

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

Field Details

eval

private final Function<BindingSet, CloseableIteration<BindingSet, QueryEvaluationException>> eval

Constructor Details

JoinQueryEvaluationStep

public JoinQueryEvaluationStep(EvaluationStrategy strategy,
 Join join,
 QueryEvaluationContext context)

Method Details

evaluate

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

Specified by:

evaluate in interface QueryEvaluationStep

isOutOfScopeForLeftArgBindings

private static boolean isOutOfScopeForLeftArgBindings(TupleExpr expr)