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

Class LeftJoinQueryEvaluationStep

java.lang.Object

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

All Implemented Interfaces:

QueryEvaluationStep

public final class LeftJoinQueryEvaluationStep
extends Object
implements QueryEvaluationStep

Nested Class Summary

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

QueryEvaluationStep.DelayedEvaluationIteration

Constructor Summary

Constructors

Constructor	Description
LeftJoinQueryEvaluationStep(QueryEvaluationStep right, QueryValueEvaluationStep condition, QueryEvaluationStep left, LeftJoin leftJoin, VarNameCollector optionalVarCollector)

Method Summary

Modifier and Type	Method	Description
CloseableIteration<BindingSet,QueryEvaluationException>	evaluate(BindingSet bindings)
static QueryEvaluationStep	supply(EvaluationStrategy strategy, LeftJoin leftJoin, QueryEvaluationContext context)

Methods inherited from class java.lang.Object

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

Constructor Details

LeftJoinQueryEvaluationStep

public LeftJoinQueryEvaluationStep(QueryEvaluationStep right,
 QueryValueEvaluationStep condition,
 QueryEvaluationStep left,
 LeftJoin leftJoin,
 VarNameCollector optionalVarCollector)

Method Details

supply

public static QueryEvaluationStep supply(EvaluationStrategy strategy,
 LeftJoin leftJoin,
 QueryEvaluationContext context)

evaluate

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

Specified by:

evaluate in interface QueryEvaluationStep