com.clarkparsia.pellet.rules.builtins

Class FunctionApplicationVisitor

java.lang.Object

com.clarkparsia.pellet.rules.builtins.FunctionApplicationVisitor

All Implemented Interfaces:

NumericVisitor

public class FunctionApplicationVisitor
extends Object
implements NumericVisitor

Title: Function Application Visitor

Description: Visitor to apply numeric functions.

Copyright: Copyright (c) 2008

Company: Clark & Parsia, LLC.

Author:

Ron Alford

Constructor Summary

Constructors

Constructor and Description
FunctionApplicationVisitor(NumericFunction function)
FunctionApplicationVisitor(NumericFunction function, Number expected) Takes a function and an optionally null expected value to compare against the function result.

Method Summary

Modifier and Type	Method and Description
Number	getResult() Returns the result of the function application.
void	visit(BigDecimal[] args)
void	visit(BigInteger[] args)
void	visit(Double[] args)
void	visit(Float[] args)

Methods inherited from class java.lang.Object

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

Constructor Detail

FunctionApplicationVisitor

public FunctionApplicationVisitor(NumericFunction function)

FunctionApplicationVisitor

public FunctionApplicationVisitor(NumericFunction function,
                                  Number expected)

Takes a function and an optionally null expected value to compare against the function result. If the expected value is not null, the result and value will be promoted to the same type and checked for equality.

Method Detail

getResult

public Number getResult()

Returns the result of the function application. If the application was a failure, the result will be null. If the expected value was non-null and matched the result once both were promoted, the result will be the expected value (unpromoted).

visit

public void visit(BigDecimal[] args)

Specified by:

visit in interface NumericVisitor

visit

public void visit(BigInteger[] args)

Specified by:

visit in interface NumericVisitor

visit

public void visit(Double[] args)

Specified by:

visit in interface NumericVisitor

visit

public void visit(Float[] args)

Specified by:

visit in interface NumericVisitor