Module org.apache.jena.core

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

Class ListMapAsSubject

java.lang.Object

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

org.apache.jena.reasoner.rulesys.builtins.ListMapAsSubject

All Implemented Interfaces:

Builtin

public class ListMapAsSubject
extends BaseBuiltin

For each element in the RDF list (first argument) it asserts triples with that as the subject and predicate and object given by arguments two and three. A strange and hacky function, only usable in the head of forward rules.

Field Summary

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

BASE_URI

Constructor Summary

Constructors

Constructor	Description
ListMapAsSubject()

Method Summary

Modifier and Type	Method	Description
int	getArgLength()	Return the expected number of arguments for this functor or 0 if the number is flexible.
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 head.

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

bodyCall, checkArgs, getArg, getURI, isMonotonic, isSafe

Methods inherited from class java.lang.Object

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

Constructor Details

ListMapAsSubject

public ListMapAsSubject()

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.

getArgLength

public int getArgLength()

Return the expected number of arguments for this functor or 0 if the number is flexible.

Specified by:

getArgLength in interface Builtin

Overrides:

getArgLength in class BaseBuiltin

headAction

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

This method is invoked when the builtin is called in a rule head. Such a use is only valid in a forward rule.

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.

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