org.jacorb.idl
Class ConstExprEvaluator

java.lang.Object
  org.jacorb.idl.ConstExprEvaluator

public class ConstExprEvaluator
extends Object

Based on the MathEvaluator class by The-Son LAI, Lts@writeme.com Expression evaluator for IDL constant expression Supports the following functions: +, -, *, /, ^, %, ^, | , <<, >>
When the getValue() is called, a Double object is returned. If it returns null, an error occured.

Version:

$Id: ConstExprEvaluator.java,v 1.9 2011-09-21 12:07:08 nick.cross Exp $

Author:

Gerald Brose, The-Son LAI Lts@writeme.com

Nested Class Summary

protected class	ConstExprEvaluator.Node
protected static class	ConstExprEvaluator.Operator

Constructor Summary

ConstExprEvaluator(String s)
creates a ConstExprEvaluator and assign the expression string.

Method Summary

Double

getValue() evaluates and returns the value of the expression

Methods inherited from class java.lang.Object

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

Constructor Detail

ConstExprEvaluator

public ConstExprEvaluator(String s)

creates a ConstExprEvaluator and assign the expression string.

Method Detail

getValue

public Double getValue()

evaluates and returns the value of the expression