Java Doc for ChoicePointFrame.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.ChoicePointFrame ChoicePointFrame public class ChoicePointFrame extends GenericChoiceFrame (Code) Represents a single frame in the LP interpreter's choice point stack, represents the OR part of the search tree. 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 12:06:16 $ Field Summary  Node[] argVars       Iterator clauseIterator       boolean isSingleton      Constructor Summary public   ChoicePointFrame(LPInterpreter interpreter, List predicateClauses, boolean isSingleton)      Constructor. Method Summary public  boolean hasNext()      public  void init(LPInterpreter interpreter, List predicateClauses)      Initialize a choice point to preserve the current context of the given intepreter and then call the given set of predicates. public  RuleClauseCode nextClause()      Return the next clause in the sequence. public  void noteSuccess()      Note successful return from this choice point. Field Detail argVars Node[] argVars(Code) The set of argument variables for the call clauseIterator Iterator clauseIterator(Code) Iterator over the clauses being searched isSingleton boolean isSingleton(Code) Flag that this is a singleton choice point Constructor Detail ChoicePointFrame public ChoicePointFrame(LPInterpreter interpreter, List predicateClauses, boolean isSingleton)(Code) Constructor. Initialize a choice point to preserve the current context of the given intepreter and then call the given set of predicates. Parameters:   interpreter - the LPInterpreter whose state is to be preserved Parameters:   predicateClauses - the list of predicates for this choice point Parameters:   isSingleton - true if this choice should abort after one successful result Method Detail hasNext public boolean hasNext()(Code) Is there another clause in the sequence? init public void init(LPInterpreter interpreter, List predicateClauses)(Code) Initialize a choice point to preserve the current context of the given intepreter and then call the given set of predicates. Parameters:   interpreter - the LPInterpreter whose state is to be preserved Parameters:   predicateClauses - the list of predicates for this choice point nextClause public RuleClauseCode nextClause()(Code) Return the next clause in the sequence. noteSuccess public void noteSuccess()(Code) Note successful return from this choice point. This closes the choice point if it is a singleton. 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)