edu.mssm.crover.domain2d
Class RVariable

java.lang.Object
  |
  +--edu.mssm.crover.domain2d.RExpression
        |
        +--edu.mssm.crover.domain2d.RVariable

public class RVariable

extends RExpression

Stores a value that can be changed. The changes are controlled by the expressions in which this variable is involved. When setValue() is called with a new value for this variable, the observers' check methods are called in turn. If an RInvalidChange is thrown doing so the change is canceled and the previous value is reset. If not the new value is accepted. The observers are the RExpressions in which this variable is involved.

Field Summary

Fields inherited from class edu.mssm.crover.domain2d.RExpression

epsilon, main

Constructor Summary

RVariable(double value)

RVariable(double value, java.lang.String n)

Method Summary

double	getValue()
static void	main(java.lang.String[] args)
void	setValue(double v)
java.lang.String	toString()

Methods inherited from class edu.mssm.crover.domain2d.RExpression

add, check, dispose, getObservers, register, register

Methods inherited from class java.lang.Object

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

Constructor Detail

RVariable

public RVariable(double value,
                 java.lang.String n)

RVariable

public RVariable(double value)

Method Detail

setValue

public void setValue(double v)
              throws RInvalidChange

Specified by:

setValue in class RExpression

RInvalidChange

getValue

public double getValue()

Specified by:

getValue in class RExpression

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

main

public static void main(java.lang.String[] args)