org.lsmp.djep.webJep
Class readCVS

java.lang.Object
  org.nfunk.jep.function.PostfixMathCommand
      org.lsmp.djep.webJep.readCVS

All Implemented Interfaces:

CommandVisitorI, PostfixMathCommandI

public class readCVS
extends PostfixMathCommand
implements CommandVisitorI

Field Summary

Fields inherited from class org.nfunk.jep.function.PostfixMathCommand

curNumberOfParameters, numberOfParameters

Constructor Summary

readCVS()

Method Summary

int	getNumberOfParameters() Return the required number of parameters.
Node	process(Node node, Node[] children, XJep xjep) Reads in data from file in process stage.
void	run(java.util.Stack aStack) Throws an exception because this method should never be called under normal circumstances.
void	setCurNumberOfParameters(int n) Sets the number of current number of parameters used in the next call of run().

Methods inherited from class org.nfunk.jep.function.PostfixMathCommand

checkNumberOfParameters, checkStack

Methods inherited from class java.lang.Object

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

Constructor Detail

readCVS

public readCVS()

Method Detail

run

public void run(java.util.Stack aStack)
         throws ParseException

Description copied from class: PostfixMathCommand

Throws an exception because this method should never be called under normal circumstances. Each function should use it's own run() method for evaluating the function. This includes popping off the parameters from the stack, and pushing the result back on the stack.

Specified by:

run in interface PostfixMathCommandI

Overrides:

run in class PostfixMathCommand

Throws:

ParseException

getNumberOfParameters

public int getNumberOfParameters()

Description copied from class: PostfixMathCommand

Return the required number of parameters.

Specified by:

getNumberOfParameters in interface PostfixMathCommandI

Overrides:

getNumberOfParameters in class PostfixMathCommand

setCurNumberOfParameters

public void setCurNumberOfParameters(int n)

Description copied from class: PostfixMathCommand

Sets the number of current number of parameters used in the next call of run(). This method is only called when the reqNumberOfParameters is -1.

Specified by:

setCurNumberOfParameters in interface PostfixMathCommandI

Overrides:

setCurNumberOfParameters in class PostfixMathCommand

process

public Node process(Node node,
                    Node[] children,
                    XJep xjep)
             throws ParseException

Reads in data from file in process stage.

Specified by:

process in interface CommandVisitorI

Parameters:

node - top node of the tree

children - the children of the node after they have been preprocessed.

xjep - a reference to the current XJep interface.

Returns:

top node of the results.

Throws:

ParseException