Class LessThan
- java.lang.Object
-
- org.apache.jena.reasoner.rulesys.builtins.BaseBuiltin
-
- org.apache.jena.reasoner.rulesys.builtins.LessThan
-
- All Implemented Interfaces:
Builtin
public class LessThan extends BaseBuiltin
Tests if the first argument is less than the second.
-
-
Field Summary
-
Fields inherited from class org.apache.jena.reasoner.rulesys.builtins.BaseBuiltin
BASE_URI
-
-
Constructor Summary
Constructors Constructor Description LessThan()
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
bodyCall(Node[] args, int length, RuleContext context)
This method is invoked when the builtin is called in a rule body.int
getArgLength()
Return the expected number of arguments for this functor or 0 if the number is flexible.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.-
Methods inherited from class org.apache.jena.reasoner.rulesys.builtins.BaseBuiltin
checkArgs, getArg, getURI, headAction, isMonotonic, isSafe
-
-
-
-
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.
-
getArgLength
public int getArgLength()
Return the expected number of arguments for this functor or 0 if the number is flexible.- Specified by:
getArgLength
in interfaceBuiltin
- Overrides:
getArgLength
in classBaseBuiltin
-
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 interfaceBuiltin
- Overrides:
bodyCall
in classBaseBuiltin
- Parameters:
args
- the array of argument values for the builtin, this is an array of Nodes, some of which may be Node_RuleVariables.context
- an execution context giving access to other relevant datalength
- the length of the argument list, may be less than the length of the args array for some rule engines- Returns:
- return true if the buildin predicate is deemed to have succeeded in the current environment
-
-