Class AndValueEvaluationStep

java.lang.Object

org.eclipse.rdf4j.query.algebra.evaluation.impl.evaluationsteps.values.AndValueEvaluationStep

All Implemented Interfaces:

QueryValueEvaluationStep

public class AndValueEvaluationStep
extends Object
implements QueryValueEvaluationStep

Nested Class Summary

Nested classes/interfaces inherited from interface QueryValueEvaluationStep

QueryValueEvaluationStep.ApplyFunctionForEachBinding, QueryValueEvaluationStep.ConstantQueryValueEvaluationStep, QueryValueEvaluationStep.Fail, QueryValueEvaluationStep.Minimal

Modifier and Type	Interface	Description
static final class	QueryValueEvaluationStep.ApplyFunctionForEachBinding	A minimal implementation that falls calls a function that should return a value per passed in bindingsets.
static class	QueryValueEvaluationStep.ConstantQueryValueEvaluationStep	A QueryValueEvalationStep that will return the same constant value throughout the query execution.
static final class	QueryValueEvaluationStep.Fail	A minimal implementation that falls is known to throw an ValueExprEvaluationException.
static final class	QueryValueEvaluationStep.Minimal	A minimal implementation that falls back to calling evaluate in the strategy.

Constructor Summary

Constructors

Constructor	Description
AndValueEvaluationStep(QueryValueEvaluationStep leftStep, QueryValueEvaluationStep rightStep)
AndValueEvaluationStep(QueryValueEvaluationStep leftStep, QueryValueEvaluationStep rightStep, QueryModelNode metricTarget)

Method Summary

Modifier and Type	Method	Description
Value	evaluate(BindingSet bindings)
static QueryValueEvaluationStep	supply(QueryValueEvaluationStep leftStep, QueryValueEvaluationStep rightStep)
static QueryValueEvaluationStep	supply(QueryValueEvaluationStep leftStep, QueryValueEvaluationStep rightStep, QueryModelNode metricTarget)

Methods inherited from class Object

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

Methods inherited from interface QueryValueEvaluationStep

asPredicate, isConstant

Modifier and Type	Method	Description
default Predicate<BindingSet>	asPredicate()
default boolean	isConstant()	If an value expression results in a constant then it may be executed once per query invocation.

Constructor Details

AndValueEvaluationStep

public AndValueEvaluationStep(QueryValueEvaluationStep leftStep,
 QueryValueEvaluationStep rightStep)

AndValueEvaluationStep

public AndValueEvaluationStep(QueryValueEvaluationStep leftStep,
 QueryValueEvaluationStep rightStep,
 QueryModelNode metricTarget)

Method Details

evaluate

public Value evaluate(BindingSet bindings)
               throws ValueExprEvaluationException,
QueryEvaluationException

Specified by:

evaluate in interface QueryValueEvaluationStep

Throws:

ValueExprEvaluationException

QueryEvaluationException

supply

public static QueryValueEvaluationStep supply(QueryValueEvaluationStep leftStep,
 QueryValueEvaluationStep rightStep)

supply

public static QueryValueEvaluationStep supply(QueryValueEvaluationStep leftStep,
 QueryValueEvaluationStep rightStep,
 QueryModelNode metricTarget)