org.javarosa.core.model

Class ComparisonExpressionCacheFilterStrategy

java.lang.Object

org.javarosa.core.model.ComparisonExpressionCacheFilterStrategy

All Implemented Interfaces:

FilterStrategy

public class ComparisonExpressionCacheFilterStrategy
extends Object
implements FilterStrategy

Caches down stream evaluations (in the FilterStrategy chain) for supported expressions - currently just XPathCmpExpr and XPathEqExpr. Repeated evaluations are fetched in O(1) time.

Constructor Summary

Constructors

Constructor and Description
ComparisonExpressionCacheFilterStrategy()

Method Summary

Modifier and Type	Method and Description
List<TreeReference>	filter(DataInstance sourceInstance, TreeReference nodeSet, XPathExpression predicate, List<TreeReference> children, EvaluationContext evaluationContext, Supplier<List<TreeReference>> next)

Methods inherited from class java.lang.Object

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

Constructor Detail

ComparisonExpressionCacheFilterStrategy

public ComparisonExpressionCacheFilterStrategy()

Method Detail

filter

@NotNull
public List<TreeReference> filter(@NotNull
                                           DataInstance sourceInstance,
                                           @NotNull
                                           TreeReference nodeSet,
                                           @NotNull
                                           XPathExpression predicate,
                                           @NotNull
                                           List<TreeReference> children,
                                           @NotNull
                                           EvaluationContext evaluationContext,
                                           @NotNull
                                           Supplier<List<TreeReference>> next)

Specified by:

filter in interface FilterStrategy