Java Doc for GenericTripleMatchFrame.java in  » RSS-RDF » Jena-2.5.5 » com » hp » hpl » jena » reasoner » rulesys » impl » 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.rulesys.impl 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   com.hp.hpl.jena.reasoner.rulesys.impl.FrameObject
      com.hp.hpl.jena.reasoner.rulesys.impl.GenericChoiceFrame
         com.hp.hpl.jena.reasoner.rulesys.impl.GenericTripleMatchFrame

All known Subclasses:   com.hp.hpl.jena.reasoner.rulesys.impl.TripleMatchFrame,  com.hp.hpl.jena.reasoner.rulesys.impl.ConsumerChoicePointFrame,
GenericTripleMatchFrame
public class GenericTripleMatchFrame extends GenericChoiceFrame (Code)
Frame on the choice point stack used to represent the state of some form of triple match - this is either a direct graph query or a query to a cached set of results.

This is used in the inner loop of the interpreter and so is a pure data structure not an abstract data type and assumes privileged access to the interpreter state.


author:
   Dave Reynolds
version:
   $Revision: 1.8 $ on $Date: 2008/01/02 12:06:17 $


Field Summary
 TriplePatterngoal
    
 FunctorobjectFunctor
    
 Node_RuleVariableobjectVar
    
 Node_RuleVariablepredicateVar
    
 Node_RuleVariablesubjectVar
    


Method Summary
public  booleanbindResult(Triple triple, LPInterpreter interpreter)
     Bind the goal variables to the given result triple.
public  booleanfunctorMatch(Triple t, LPInterpreter interpreter)
     Check that the object of a triple match corresponds to the given functor pattern.
public  voidinit(LPInterpreter interpreter)
    

Field Detail
goal
TriplePattern goal(Code)
The goal state being evaluated



objectFunctor
Functor objectFunctor(Code)
The functor variable structure to explode the object into, null if not required



objectVar
Node_RuleVariable objectVar(Code)
The variable to the subject of the triple, null if no binding required



predicateVar
Node_RuleVariable predicateVar(Code)
The variable to the predicate of the triple, null if no binding required



subjectVar
Node_RuleVariable subjectVar(Code)
The variable to the subject of the triple, null if no binding required





Method Detail
bindResult
public boolean bindResult(Triple triple, LPInterpreter interpreter)(Code)
Bind the goal variables to the given result triple. Returns false if the triple doesn't match the goal (due to a functor match failure).



functorMatch
public boolean functorMatch(Triple t, LPInterpreter interpreter)(Code)
Check that the object of a triple match corresponds to the given functor pattern. Side effects the variable bindings.



init
public void init(LPInterpreter interpreter)(Code)
Initialize the triple match to preserve the current context of the given LPInterpreter and search for the match defined by the current argument registers
Parameters:
  intepreter - the interpreter instance whose env, trail and arg values are to be preserved



Fields inherited from com.hp.hpl.jena.reasoner.rulesys.impl.GenericChoiceFrame
int cac(Code)(Java Doc)
int cpc(Code)(Java Doc)
EnvironmentFrame envFrame(Code)(Java Doc)
int trailIndex(Code)(Java Doc)

Methods inherited from com.hp.hpl.jena.reasoner.rulesys.impl.GenericChoiceFrame
public void init(LPInterpreter interpreter)(Code)(Java Doc)
public void setContinuation(int pc, int ac)(Code)(Java Doc)

Fields inherited from com.hp.hpl.jena.reasoner.rulesys.impl.FrameObject
FrameObject link(Code)(Java Doc)

Methods inherited from com.hp.hpl.jena.reasoner.rulesys.impl.FrameObject
public void close()(Code)(Java Doc)
public void fastLinkTo(FrameObject prior)(Code)(Java Doc)
public FrameObject getLink()(Code)(Java Doc)
public void linkTo(FrameObject prior)(Code)(Java Doc)

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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