net.sourceforge.webcompmath.data
Class ValueMath

java.lang.Object
  net.sourceforge.webcompmath.data.ValueMath

All Implemented Interfaces:

java.io.Serializable, Value

Direct Known Subclasses:

WCMValueMathBean

public class ValueMath
extends java.lang.Object
implements Value

A ValueMath object is an easy way to create Value objects that are computed from other Value objects. For example, "new ValueMath(a,b,'+')" is an object whose value is obtained by adding the values of a and b.

See Also:

Serialized Form

Constructor Summary

ValueMath()
Default constructor, only used in GUI builders.

ValueMath(Function f, Value x)
Create a ValueMath object whose value is computed as f(x).

ValueMath(Value x, Value y, char op)
Create a ValueMath object whose value is computed by applying an arithmetic operator the values of x and y.

Method Summary

double	getVal() Get the value of this object.
void	setFunction(Function f) Set the function to use
void	setop(char op) Set the operation to use
void	setX(Value x) Set the X value to use
void	setY(Value y) Set the Y value to use

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueMath

public ValueMath(Value x,
                 Value y,
                 char op)

Create a ValueMath object whose value is computed by applying an arithmetic operator the values of x and y.

Parameters:

x - first arg. value

y - second arg. value

op - The arithmetic operator that is to be applied to x and y. This should be one of the characters '+', '-', '*', '/', or '^'. (No error is thrown if another character is provided. It will be treated as a '/').

ValueMath

public ValueMath(Function f,
                 Value x)

Create a ValueMath object whose value is computed as f(x).

Parameters:

f - function to use

x - value to use

ValueMath

public ValueMath()

Default constructor, only used in GUI builders.

Method Detail

setX

public void setX(Value x)

Set the X value to use

Parameters:

x - the value to use

setY

public void setY(Value y)

Set the Y value to use

Parameters:

y - the value to use

setop

public void setop(char op)

Set the operation to use

Parameters:

op - the operation to use

setFunction

public void setFunction(Function f)

Set the function to use

Parameters:

f - the function to use

getVal

public double getVal()

Get the value of this object.

Specified by:

getVal in interface Value

Returns:

value