com.hp.hpl.jena.reasoner.rulesys.builtins
Class Hide
java.lang.Object
com.hp.hpl.jena.reasoner.rulesys.builtins.BaseBuiltin
com.hp.hpl.jena.reasoner.rulesys.builtins.Hide
- All Implemented Interfaces:
- Builtin
public class Hide
- extends BaseBuiltin
Register a node as to be hidden from query
result iterators.
- Version:
- $Revision: 1.1 $ on $Date: 2009-06-29 08:55:36 $
- Author:
- Dave Reynolds
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Constructor Summary |
Hide()
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Method Summary |
boolean |
bodyCall(Node[] args,
int length,
RuleContext context)
This method is invoked when the builtin is called in a rule body. |
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. |
Hide
public Hide()
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.
bodyCall
public boolean bodyCall(Node[] args,
int length,
RuleContext context)
- This method is invoked when the builtin is called in a rule body.
- Specified by:
bodyCall in interface Builtin- Overrides:
bodyCall 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 enginescontext - an execution context giving access to other relevant data
- Returns:
- return true if the buildin predicate is deemed to have succeeded in
the current environment
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
Licenced under the Apache License, Version 2.0