com.hp.hpl.jena.reasoner.rulesys.builtins
Class Remove
java.lang.Object
com.hp.hpl.jena.reasoner.rulesys.builtins.BaseBuiltin
com.hp.hpl.jena.reasoner.rulesys.builtins.Remove
- All Implemented Interfaces:
- Builtin
public class Remove
- extends BaseBuiltin
Remove the body clause given by index arguments from the database.
- Version:
- $Revision: 1.1 $ on $Date: 2009-06-29 08:55:36 $
- Author:
- Dave Reynolds
Method Summary |
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. |
boolean |
isMonotonic()
Returns false if this builtin is non-monotonic. |
Remove
public Remove()
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 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 enginescontext
- an execution context giving access to other relevant data
isMonotonic
public boolean isMonotonic()
- Returns false if this builtin is non-monotonic. This includes non-monotonic checks like noValue
and non-monotonic actions like remove/drop. A non-monotonic call in a head is assumed to
be an action and makes the overall rule and ruleset non-monotonic.
Most JenaRules are monotonic deductive closure rules in which this should be false.
- Specified by:
isMonotonic
in interface Builtin
- Overrides:
isMonotonic
in class BaseBuiltin
Licenced under the Apache License, Version 2.0