com.hp.hpl.jena.reasoner.rulesys
Class OWLFBRuleReasoner

java.lang.Object
  com.hp.hpl.jena.reasoner.rulesys.FBRuleReasoner
      com.hp.hpl.jena.reasoner.rulesys.OWLFBRuleReasoner

All Implemented Interfaces:

Reasoner, RuleReasoner

public class OWLFBRuleReasoner
extends FBRuleReasoner

A hybrid forward/backward implementation of the OWL closure rules.

Version:

$Revision: 1.19 $ on $Date: 2008/01/02 12:07:47 $

Author:

Dave Reynolds

Constructor Summary

OWLFBRuleReasoner(ReasonerFactory factory)
Constructor

Method Summary

InfGraph	bind(Graph data) Attach the reasoner to a set of RDF data to process.
Reasoner	bindSchema(Graph tbox) Precompute the implications of a schema graph.
InfGraph	getPreload() Get the single static precomputed rule closure.
static java.util.List	loadRules() Return the rule set, loading it in if necessary

Methods inherited from class com.hp.hpl.jena.reasoner.rulesys.FBRuleReasoner

addDescription, addRules, bindSchema, getBoundSchema, getGraphCapabilities, getReasonerCapabilities, getRules, isTraceOn, loadRules, setDerivationLogging, setParameter, setRules, setTraceOn, supportsProperty, tablePredicate

Methods inherited from class java.lang.Object

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

Constructor Detail

OWLFBRuleReasoner

public OWLFBRuleReasoner(ReasonerFactory factory)

Constructor

Method Detail

loadRules

public static java.util.List loadRules()

Return the rule set, loading it in if necessary

bindSchema

public Reasoner bindSchema(Graph tbox)
                    throws ReasonerException

Precompute the implications of a schema graph. The statements in the graph will be combined with the data when the final InfGraph is created.

Specified by:

bindSchema in interface Reasoner

Overrides:

bindSchema in class FBRuleReasoner

Parameters:

tbox - the ontology axioms or rule set encoded in RDF

Returns:

a reasoner instace which can be used to process a data graph

Throws:

ReasonerException - if the reasoner cannot be bound to a rule set in this way, for example if the underlying engine can only accept a single rule set in this way and one rule set has already been bound in of if the ruleset is illformed.

bind

public InfGraph bind(Graph data)
              throws ReasonerException

Attach the reasoner to a set of RDF data to process. The reasoner may already have been bound to specific rules or ontology axioms (encoded in RDF) through earlier bindRuleset calls.

Specified by:

bind in interface Reasoner

Overrides:

bind in class FBRuleReasoner

Parameters:

data - the RDF data to be processed, some reasoners may restrict the range of RDF which is legal here (e.g. syntactic restrictions in OWL).

Returns:

an inference graph through which the data+reasoner can be queried.

Throws:

ReasonerException - if the data is ill-formed according to the constraints imposed by this reasoner.

getPreload

public InfGraph getPreload()

Get the single static precomputed rule closure.