Module org.apache.jena.core

Package org.apache.jena.reasoner.rulesys.builtins

Class Table

java.lang.Object

org.apache.jena.reasoner.rulesys.builtins.BaseBuiltin

org.apache.jena.reasoner.rulesys.builtins.Table

All Implemented Interfaces:

Builtin

public class Table
extends BaseBuiltin

Arrange that the given predicate is tabled by the backchaining engine.

Field Summary

Fields inherited from class org.apache.jena.reasoner.rulesys.builtins.BaseBuiltin

BASE_URI

Constructor Summary

Constructors

Constructor	Description
Table()

Method Summary

Modifier and Type	Method	Description
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 org.apache.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 Details

Table

public Table()

Method Details

getName

public 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