Overview | Package | Class | Tree | Deprecated | Index | Help
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

## org.nfunk.jep.function
Class Assign

    java.lang.Object
      org.nfunk.jep.function.PostfixMathCommand
          org.nfunk.jep.function.Assign

All Implemented Interfaces:
  CallbackEvaluationI, PostfixMathCommandI

Direct Known Subclasses:
  MAssign, XAssign

    public class Assign

extends PostfixMathCommand
implements CallbackEvaluationI

An assignment operator so we can do x=3+4. This function implements the CallbackEvaluationI interface so that it handles setting the value of a variable. Any Variable or function which implements the LValueI can appear on the left hand side of the equation.

Author:
  Rich Morris Created on 18-Nov-2003

Field Summary

Fields inherited from class org.nfunk.jep.function.PostfixMathCommand
`curNumberOfParameters, numberOfParameters`

Constructor Summary
`Assign()`

Method Summary
`java.lang.Object` | `evaluate(Node node, EvaluatorI pv)` For assignment set the value of the variable on the lhs to value returned by evaluating the righthand side.

Methods inherited from class org.nfunk.jep.function.PostfixMathCommand
`checkNumberOfParameters, checkStack, getNumberOfParameters, run, setCurNumberOfParameters`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### Assign

    public Assign()

Method Detail

### evaluate

    public java.lang.Object evaluate(Node node,
                                     EvaluatorI pv)
                              throws ParseException

  For assignment set the value of the variable on the lhs to value returned by evaluating the righthand side.

  Specified by:
    `evaluate` in interface `CallbackEvaluationI`
  Parameters:
    `node` - The current node
    `pv` - The visitor, can be used evaluate the children
  Returns:
    the value after evaluation
  Throws:
    `ParseException`

Overview | Package | Class | Tree | Deprecated | Index | Help
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

http://www.singularsys.com/jep Copyright © 2007 Singular Systems