jelan.simple
Class Expression

java.lang.Object
  extended by jelan.simple.GrammarElement
      extended by jelan.simple.Expression
Direct Known Subclasses:
BinaryExpression, Number, UnaryExpression, Variable

public abstract class Expression
extends GrammarElement


Constructor Summary
Expression()
           
 
Method Summary
 java.lang.Object evaluate(Context c)
           
abstract  double value(Context c)
           
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Expression

public Expression()
Method Detail

evaluate

public java.lang.Object evaluate(Context c)
Specified by:
evaluate in class GrammarElement

value

public abstract double value(Context c)