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

Field Summary

Fields inherited from interface org.eclipse.rdf4j.query.algebra.evaluation.QueryEvaluationStep

EMPTY, EMPTY_ITERATION

Constructor Summary

Constructors

Constructor	Description
LeftJoinQueryEvaluationStep(QueryEvaluationStep right, QueryValueEvaluationStep condition, QueryEvaluationStep left, LeftJoin leftJoin, Set<String> optionalVars)
LeftJoinQueryEvaluationStep(QueryEvaluationStep right, QueryValueEvaluationStep condition, QueryEvaluationStep left, LeftJoin leftJoin, VarNameCollector optionalVarCollector)	Deprecated, for removal: This API element is subject to removal in a future version.

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 Detail

LeftJoinQueryEvaluationStep

@Deprecated(forRemoval=true,
            since="4.1.0")
public LeftJoinQueryEvaluationStep(QueryEvaluationStep right,
                                   QueryValueEvaluationStep condition,
                                   QueryEvaluationStep left,
                                   LeftJoin leftJoin,
                                   VarNameCollector optionalVarCollector)

Deprecated, for removal: This API element is subject to removal in a future version.

LeftJoinQueryEvaluationStep

public LeftJoinQueryEvaluationStep(QueryEvaluationStep right,
                                   QueryValueEvaluationStep condition,
                                   QueryEvaluationStep left,
                                   LeftJoin leftJoin,
                                   Set<String> optionalVars)

Method Detail

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