Class PreFilterQueryEvaluationStep

java.lang.Object

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

All Implemented Interfaces:

QueryEvaluationStep

public class PreFilterQueryEvaluationStep
extends Object
implements QueryEvaluationStep

Nested Class Summary

Nested classes/interfaces inherited from interface QueryEvaluationStep

QueryEvaluationStep.DelayedEvaluationIteration

Modifier and Type	Interface	Description
static class	QueryEvaluationStep.DelayedEvaluationIteration	Utility class that removes code duplication and makes a precompiled QueryEvaluationStep available as an iteration that may be created and used later.

Field Summary

Fields inherited from interface QueryEvaluationStep

EMPTY, EMPTY_ITERATION

Modifier and Type	Field	Description
static final QueryEvaluationStep	EMPTY
static final EmptyIteration<BindingSet>	EMPTY_ITERATION

Constructor Summary

Constructors

Constructor	Description
PreFilterQueryEvaluationStep(QueryEvaluationStep wrapped, QueryValueEvaluationStep condition)
PreFilterQueryEvaluationStep(QueryEvaluationStep wrapped, QueryValueEvaluationStep condition, QueryModelNode metricTarget)

Method Summary

Modifier and Type	Method	Description
CloseableIteration<BindingSet>	evaluate(BindingSet leftBindings)

Methods inherited from class Object

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

Constructor Details

PreFilterQueryEvaluationStep

public PreFilterQueryEvaluationStep(QueryEvaluationStep wrapped,
 QueryValueEvaluationStep condition)

PreFilterQueryEvaluationStep

public PreFilterQueryEvaluationStep(QueryEvaluationStep wrapped,
 QueryValueEvaluationStep condition,
 QueryModelNode metricTarget)

Method Details

evaluate

public CloseableIteration<BindingSet> evaluate(BindingSet leftBindings)

Specified by:

evaluate in interface QueryEvaluationStep