Java Doc for TransitiveReasoner.java in  » RSS-RDF » Jena-2.5.5 » com » hp » hpl » jena » reasoner » transitiveReasoner » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » RSS RDF » Jena 2.5.5 » com.hp.hpl.jena.reasoner.transitiveReasoner 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   com.hp.hpl.jena.reasoner.transitiveReasoner.TransitiveReasoner

All known Subclasses:   com.hp.hpl.jena.reasoner.rdfsReasoner1.RDFSReasoner,
TransitiveReasoner
public class TransitiveReasoner implements Reasoner(Code)
A simple "reasoner" used to help with API development.

This reasoner caches a transitive closure of the subClass and subProperty graphs. The generated infGraph allows both the direct and closed versions of these properties to be retrieved. The cache is built when the tbox is bound in but if the final data graph contains additional subProperty/subClass declarations then the cache has to be rebuilt.

The triples in the tbox (if present) will also be included in any query. Any of tbox or data graph are allowed to be null.


author:
   Dave Reynolds
version:
   $Revision: 1.24 $ on $Date: 2008/01/02 12:07:50 $


Field Summary
protected  Capabilitiescapabilities
    
final public static  NodedirectSubClassOf
    
final public static  NodedirectSubPropertyOf
    
protected  TransitiveGraphCachesubClassCache
    
final public static  NodesubClassOf
    
protected  TransitiveGraphCachesubPropertyCache
    
final public static  NodesubPropertyOf
    
protected  Findertbox
    

Constructor Summary
public  TransitiveReasoner()
    
protected  TransitiveReasoner(Finder tbox, TransitiveGraphCache subClassCache, TransitiveGraphCache subPropertyCache)
     Private constructor used by bindSchema when returning a partially bound reasoner instance.

Method Summary
public  voidaddDescription(Model configSpec, Resource base)
     Add a configuration description for this reasoner into a partial configuration specification model.
public  InfGraphbind(Graph data)
     Attach the reasoner to a set of RDF ddata to process. The reasoner may already have been bound to specific rules or ontology axioms (encoded in RDF) through earlier bindRuleset calls.
Parameters:
  data - the RDF data to be processed, some reasoners may restrictthe range of RDF which is legal here (e.g.
public  ReasonerbindSchema(Graph tbox)
     Extracts all of the subClass and subProperty declarations from the given schema/tbox and caches the resultant graphs.
public  ReasonerbindSchema(Model tbox)
     Extracts all of the subClass and subProperty declarations from the given schema/tbox and caches the resultant graphs.
 ReasonerbindSchema(Finder tbox)
     Extracts all of the subClass and subProperty declarations from the given schema/tbox and caches the resultant graphs.
public  CapabilitiesgetGraphCapabilities()
     Return the Jena Graph Capabilties that the inference graphs generated by this reasoner are expected to conform to.
public  ModelgetReasonerCapabilities()
     Return a description of the capabilities of this reasoner encoded in RDF.
public  TransitiveGraphCachegetSubClassCache()
     Accessor used during infgraph construction - return the cached version of the subClass lattice.
public  TransitiveGraphCachegetSubPropertyCache()
     Accessor used during infgraph construction - return the cached version of the subProperty lattice.
public  FindergetTbox()
     Accessor used during infgraph construction - return the partially bound tbox, if any.
public  voidsetDerivationLogging(boolean logOn)
     Switch on/off drivation logging. If set to true then the InfGraph created from the bind operation will start life with recording of derivations switched on.
public  voidsetParameter(Property parameter, Object value)
     Set a configuration paramter for the reasoner.
public  booleansupportsProperty(Property property)
     Determine whether the given property is recognized and treated specially by this reasoner.

Field Detail
capabilities
protected Capabilities capabilities(Code)
The graph capabilities of the infgraphs generated by this reasoner



directSubClassOf
final public static Node directSubClassOf(Code)
The direct (minimal) version of the subClassOf property



directSubPropertyOf
final public static Node directSubPropertyOf(Code)
The direct (minimal) version of the subPropertyOf property



subClassCache
protected TransitiveGraphCache subClassCache(Code)
The precomputed cache of the subClass graph



subClassOf
final public static Node subClassOf(Code)
The normal subClassOf property



subPropertyCache
protected TransitiveGraphCache subPropertyCache(Code)
The precomputed cache of the subProperty graph



subPropertyOf
final public static Node subPropertyOf(Code)
The normal subPropertyOf property



tbox
protected Finder tbox(Code)
The graph registered as the schema, if any




Constructor Detail
TransitiveReasoner
public TransitiveReasoner()(Code)
Constructor



TransitiveReasoner
protected TransitiveReasoner(Finder tbox, TransitiveGraphCache subClassCache, TransitiveGraphCache subPropertyCache)(Code)
Private constructor used by bindSchema when returning a partially bound reasoner instance.




Method Detail
addDescription
public void addDescription(Model configSpec, Resource base)(Code)
Add a configuration description for this reasoner into a partial configuration specification model.
Parameters:
  configSpec - a Model into which the configuration information should be placed
Parameters:
  base - the Resource to which the configuration parameters should be added.



bind
public InfGraph bind(Graph data) throws ReasonerException(Code)
Attach the reasoner to a set of RDF ddata to process. The reasoner may already have been bound to specific rules or ontology axioms (encoded in RDF) through earlier bindRuleset calls.
Parameters:
  data - the RDF data to be processed, some reasoners may restrictthe range of RDF which is legal here (e.g. syntactic restrictions in OWL). an inference graph through which the data+reasoner can be queried.
throws:
  ReasonerException - if the data is ill-formed according to theconstraints imposed by this reasoner.



bindSchema
public Reasoner bindSchema(Graph tbox) throws ReasonerException(Code)
Extracts all of the subClass and subProperty declarations from the given schema/tbox and caches the resultant graphs. It can only be used once, can't stack up multiple tboxes this way. This limitation could be lifted - the only difficulty is the need to reprocess all the earlier tboxes if a new subPropertyOf subPropertyOf subClassOf is discovered.
Parameters:
  tbox - schema containing the property and class declarations



bindSchema
public Reasoner bindSchema(Model tbox) throws ReasonerException(Code)
Extracts all of the subClass and subProperty declarations from the given schema/tbox and caches the resultant graphs. It can only be used once, can't stack up multiple tboxes this way. This limitation could be lifted - the only difficulty is the need to reprocess all the earlier tboxes if a new subPropertyOf subPropertyOf subClassOf is discovered.
Parameters:
  tbox - schema containing the property and class declarations



bindSchema
Reasoner bindSchema(Finder tbox) throws ReasonerException(Code)
Extracts all of the subClass and subProperty declarations from the given schema/tbox and caches the resultant graphs. It can only be used once, can't stack up multiple tboxes this way. This limitation could be lifted - the only difficulty is the need to reprocess all the earlier tboxes if a new subPropertyOf subPropertyOf subClassOf is discovered.
Parameters:
  tbox - schema containing the property and class declarations



getGraphCapabilities
public Capabilities getGraphCapabilities()(Code)
Return the Jena Graph Capabilties that the inference graphs generated by this reasoner are expected to conform to.



getReasonerCapabilities
public Model getReasonerCapabilities()(Code)
Return a description of the capabilities of this reasoner encoded in RDF. These capabilities may be static or may depend on configuration information supplied at construction time. May be null if there are no useful capabilities registered.



getSubClassCache
public TransitiveGraphCache getSubClassCache()(Code)
Accessor used during infgraph construction - return the cached version of the subClass lattice.



getSubPropertyCache
public TransitiveGraphCache getSubPropertyCache()(Code)
Accessor used during infgraph construction - return the cached version of the subProperty lattice.



getTbox
public Finder getTbox()(Code)
Accessor used during infgraph construction - return the partially bound tbox, if any.



setDerivationLogging
public void setDerivationLogging(boolean logOn)(Code)
Switch on/off drivation logging. If set to true then the InfGraph created from the bind operation will start life with recording of derivations switched on. This is currently only of relevance to rule-based reasoners.

Default - false.




setParameter
public void setParameter(Property parameter, Object value)(Code)
Set a configuration paramter for the reasoner. In the case of the this reasoner there are no configuration parameters and this method is simply here to meet the interfaces specification
Parameters:
  parameter - the property identifying the parameter to be changed
Parameters:
  value - the new value for the parameter, typically this is a wrappedjava object like Boolean or Integer.



supportsProperty
public boolean supportsProperty(Property property)(Code)
Determine whether the given property is recognized and treated specially by this reasoner. This is a convenience packaging of a special case of getCapabilities.
Parameters:
  property - the property which we want to ask the reasoner about, given as a Node sincethis is part of the SPI rather than API true if the given property is handled specially by the reasoner.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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