de.fuberlin.wiwiss.wiqa.explanation
Class PlanExplainableFilter

java.lang.Object
  com.hp.hpl.jena.query.engine1.compiler.PlanElementBase
      de.fuberlin.wiwiss.wiqa.explanation.PlanExplainableFilter

All Implemented Interfaces:

PlanElement

public class PlanExplainableFilter

extends PlanElementBase

Query plan for a FILTER stage where functions in the filter constraint may return explanations. Based on ARQ's PlanFilter, but builds a QueryIterExplainableFilter.

Version:

$Id: PlanExplainableFilter.java,v 1.2 2006/06/29 17:58:57 cyganiak Exp $

Author:

Richard Cyganiak (richard@cyganiak.de)

Constructor Summary

PlanExplainableFilter(Plan plan, ElementFilter el)

Method Summary

QueryIterator	build(QueryIterator input, ExecutionContext execCxt)
void	visit(PlanVisitor visitor)

Methods inherited from class com.hp.hpl.jena.query.engine1.compiler.PlanElementBase

getPlan, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

PlanExplainableFilter

public PlanExplainableFilter(Plan plan,
                             ElementFilter el)

Method Detail

build

public QueryIterator build(QueryIterator input,
                           ExecutionContext execCxt)

visit

public void visit(PlanVisitor visitor)