com.clarkparsia.pellet.sparqldl.engine

Class QueryCost

java.lang.Object

com.clarkparsia.pellet.sparqldl.engine.QueryCost

public class QueryCost
extends Object

Title: AtomCostImpl

Description: Computes the cost estimate for given atom.

Copyright: Copyright (c) 2007

Company: Clark & Parsia, LLC.

Author:

Petr Kremen

Constructor Summary

Constructors

Constructor and Description
QueryCost(KnowledgeBase kb)

Method Summary

Modifier and Type	Method and Description
double	estimate(List<QueryAtom> atoms)
double	estimate(List<QueryAtom> atoms, Collection<aterm.ATermAppl> bound)
double	estimate(QueryAtom atom)
double	estimate(QueryAtom atom, Collection<aterm.ATermAppl> bound)
double	getBranchCount()
double	getStaticCost()

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryCost

public QueryCost(KnowledgeBase kb)

Method Detail

estimate

public double estimate(List<QueryAtom> atoms)

estimate

public double estimate(List<QueryAtom> atoms,
                       Collection<aterm.ATermAppl> bound)

estimate

public double estimate(QueryAtom atom)

estimate

public double estimate(QueryAtom atom,
                       Collection<aterm.ATermAppl> bound)

getBranchCount

public double getBranchCount()

getStaticCost

public double getStaticCost()