com.hp.hpl.jena.reasoner.rulesys.builtins
Class TableAll

java.lang.Object
  com.hp.hpl.jena.reasoner.rulesys.builtins.BaseBuiltin
      com.hp.hpl.jena.reasoner.rulesys.builtins.TableAll

All Implemented Interfaces:

Builtin

public class TableAll
extends BaseBuiltin

Arrange that all backchaining goals should be tabled (aka memoized) by the LP engine.

Version:

$Revision: 1.9 $ on $Date: 2008/01/02 12:06:21 $

Author:

Dave Reynolds

Field Summary

Fields inherited from class com.hp.hpl.jena.reasoner.rulesys.builtins.BaseBuiltin

BASE_URI

Constructor Summary

TableAll()

Method Summary

java.lang.String	getName() Return a name for this builtin, normally this will be the name of the functor that will be used to invoke it.
void	headAction(Node[] args, int length, RuleContext context) This method is invoked when the builtin is called in a rule body.

Methods inherited from class com.hp.hpl.jena.reasoner.rulesys.builtins.BaseBuiltin

bodyCall, checkArgs, getArg, getArgLength, getURI, isMonotonic, isSafe

Methods inherited from class java.lang.Object

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

Constructor Detail

TableAll

public TableAll()

Method Detail

getName

public java.lang.String getName()

Return a name for this builtin, normally this will be the name of the functor that will be used to invoke it.

headAction

public void headAction(Node[] args,
                       int length,
                       RuleContext context)

This method is invoked when the builtin is called in a rule body.

Specified by:

headAction in interface Builtin

Overrides:

headAction in class BaseBuiltin

Parameters:

args - the array of argument values for the builtin, this is an array of Nodes, some of which may be Node_RuleVariables.

length - the length of the argument list, may be less than the length of the args array for some rule engines

context - an execution context giving access to other relevant data