net.christopherschultz.evaluator.function
Class NewObjectFunction

java.lang.Object
  net.christopherschultz.evaluator.StandardFunction
      net.christopherschultz.evaluator.function.NewObjectFunction

All Implemented Interfaces:

Function

public class NewObjectFunction
extends StandardFunction

Creates a new object of a class and calls the appropriate constructor.

Here's an example of how this works. If you expression is

create("java.lang.StringBuffer", "buffered string")

Then by using the NewObjectFunction, a new object of type StrinfBuffer will be created, and StringBuffer.<init> will be called with the remaining arguments ("buffered string").

Version:

$Revision: 1.4 $ $Date: 2008-06-20 22:58:48 $

Author:

Chris Schultz

Constructor Summary

NewObjectFunction()
Creates a new IJWInvocation object.

Method Summary

Object

call(EvaluationContext ec, String functionName, Object[] arguments) Calls this function with standard argument evaluation semantics.

Methods inherited from class net.christopherschultz.evaluator.StandardFunction

call, getExpressionValue, getExpressionValueArray, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

NewObjectFunction

public NewObjectFunction()

Creates a new IJWInvocation object.

Method Detail

call

public Object call(EvaluationContext ec,
                   String functionName,
                   Object[] arguments)
            throws EvaluationException

Description copied from class: StandardFunction

Calls this function with standard argument evaluation semantics.

Specified by:

call in class StandardFunction

Parameters:

ec - The EvaluationContext in which this function is being called.

functionName - The name of the function being invoked.

arguments - The argument values to pass to this function.

Returns:

The result of the function.

Throws:

EvaluationException - If there is an error during function execution.