genopt.algorithm.util.math

Class FunctionEvaluator.Element

java.lang.Object

genopt.algorithm.util.math.FunctionEvaluator.Element

All Implemented Interfaces:

java.lang.Cloneable

Enclosing class:

FunctionEvaluator

private class FunctionEvaluator.Element
extends java.lang.Object
implements java.lang.Cloneable

Internal class for an element that contains either a String, a double, or a char value.

Field Summary

Fields

Modifier and Type	Field and Description
private double	nval
private java.lang.String	sval
static int	TT_CBRA
static int	TT_COMMA
static int	TT_NUMBER
static int	TT_OBRA
static int	TT_WORD
int	ttype

Constructor Summary

Constructors

Constructor and Description
Element(java.lang.String stringRepresentation) Creates a new Element instance.

Method Summary

Modifier and Type	Method and Description
private void	_setAttribute()
java.lang.Object	clone() Clones the instance.
double	getNumber() Gets the double value of the element.
java.lang.String	getString() Gets the String value of the element.
java.lang.String	getStringRepresentation() Gets the String representation of the element.
java.lang.String	toString() Returns a String representation of the object.

Methods inherited from class java.lang.Object

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

Field Detail

sval

private java.lang.String sval

nval

private double nval

ttype

public int ttype

TT_NUMBER

public static final int TT_NUMBER

See Also:

Constant Field Values

TT_WORD

public static final int TT_WORD

See Also:

Constant Field Values

TT_COMMA

public static final int TT_COMMA

See Also:

Constant Field Values

TT_OBRA

public static final int TT_OBRA

See Also:

Constant Field Values

TT_CBRA

public static final int TT_CBRA

See Also:

Constant Field Values

Constructor Detail

Element

public Element(java.lang.String stringRepresentation)

Creates a new Element instance.

Parameters:

stringRepresentation - a String value of the element being parsed. The argument must have the leading and terminating whitespace characters, if any, removed.

Method Detail

_setAttribute

private void _setAttribute()

getNumber

public double getNumber()
                 throws java.lang.RuntimeException

Gets the double value of the element.

Returns:

the double value of the element

Throws:

java.lang.RuntimeException - if the element is not of type double

getString

public java.lang.String getString()
                           throws java.lang.RuntimeException

Gets the String value of the element.

Returns:

the String value of the element

Throws:

java.lang.RuntimeException - if the element is not of type String

getStringRepresentation

public java.lang.String getStringRepresentation()

Gets the String representation of the element. This method can be called on any element, also for elements representing a double number.

Returns:

the String representation of the element

toString

public java.lang.String toString()

Returns a String representation of the object.

Overrides:

toString in class java.lang.Object

Returns:

the String representation of the object

clone

public java.lang.Object clone()

Clones the instance.

Overrides:

clone in class java.lang.Object

Returns:

a clone of the instance