Re: [CFCDev] Dynamically creating functions

[Matt Liotta]

Actually, only CFMX has that limitation. BlueDragon evaluates 
everything at runtime similar to how ColdFusion worked prior to MX. 
Thus, it is possible to dynamically create functions. However, you 
certainly can't do it with the evaluate function since that only 
supports expressions and not full blown CFML. If someone really wanted 
to do it with BlueDragon they would have to use some of the internal 
Java methods.

Matt Liotta
Montara Software, Inc.
http://www.MontaraSoftware.com
On Jan 7, 2004, at 2:06 PM, Barney Boisvert wrote:

That's impossible, as evaluate fires at runtime, while the function
definitions are processed at compile time (into their own classes).  
It's
something that's MUCH better done at development time anyway.  Any 
good OO
IDE will do exactly that for you, but unfortunately we don't have an 
IDE for
CFCs, let alone a good one.  However, you can probably duplicate that 
type
of function with an extension for DW.  Have to do some parsing of the 
DOM to
get a variable list, let the user select which variables to generate 
for,
and then write a bunch of code at the end of the dom, before the 
closing
CFCOMPONENT tag.

Cheers,
barneyb
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jon Gunnip
Sent: Wednesday, January 07, 2004 10:52 AM
To: [EMAIL PROTECTED]
Subject: [CFCDev] Dynamically creating functions
I've been curious whether it is possible to dynamically
create functions in CF with names and return variable names
decided at runtime.  I took a stab at it once, but I couldn't
figure out how to create a function on the fly besides
writing the function declaration to a file and then cfincluding it.
Wouldn't it be nice to have something like this for simple getters?:

<cfset Getters = "ID,Name,Age,Height,Weight" >

<cfloop list="#Getters#" index="GetterVar" >
  <cfset CreateSimpleGetter(GetterVar) >
</cfloop>
<cffunction name="CreateSimpleGetter" >
  <cfargument name="GetterVar" />
  <cfset FunctionText = "<cffunction
name='get#GetterVar#'><cfreturn
Variables[#GetterVar#]></cffunction>" >
  <cfset Evaluate(FunctionText) >
</cffunction>
Does anyone know if it is possilbe to create a function
factory like this?
Jon



[EMAIL PROTECTED] 01/07/04 10:21AM >>>




I have a CFC with 26 properties.  None are inherited.  I find that
having 52 methods for getting and setting to be a bit
cumbersome to keep
in my CFC with the "real" methods.  I was thinking of including all my
getters and setters from a CF template.  Let's say that the my code
looks like this:
facility.cfc
<cfcomponent hint="I am a facility">
      <!--- Include the getters and setters --->
      <cfinclude  template= "facilitygetset.cfm">
      <!--- Start the more complicated stuff --->
      <cffunction name="firstrealmethod">
      .
      .
      .
      </cffunction>
..
..
..
..
</cfcomponent>
Any thoughts on this as a good idea, bad idea, unintended
consequences?
------------------------------------------------
Gerry Gurevich,
Lockheed Martin
[EMAIL PROTECTED]
919-572-7818
----------------------------------------------------------
You are subscribed to cfcdev. To unsubscribe, send an email
to [EMAIL PROTECTED] with the words 'unsubscribe cfcdev'
in the message of the email.
CFCDev is run by CFCZone (www.cfczone.org) and supported
by Mindtool, Corporation (www.mindtool.com).
An archive of the CFCDev list is available at
www.mail-archive.com/[EMAIL PROTECTED]
----------------------------------------------------------
You are subscribed to cfcdev. To unsubscribe, send an email
to [EMAIL PROTECTED] with the words 'unsubscribe cfcdev'
in the message of the email.
CFCDev is run by CFCZone (www.cfczone.org) and supported
by Mindtool, Corporation (www.mindtool.com).
An archive of the CFCDev list is available at
www.mail-archive.com/[EMAIL PROTECTED]
----------------------------------------------------------
You are subscribed to cfcdev. To unsubscribe, send an email
to [EMAIL PROTECTED] with the words 'unsubscribe cfcdev'
in the message of the email.
CFCDev is run by CFCZone (www.cfczone.org) and supported
by Mindtool, Corporation (www.mindtool.com).
An archive of the CFCDev list is available at 
www.mail-archive.com/[EMAIL PROTECTED]

----------------------------------------------------------
You are subscribed to cfcdev. To unsubscribe, send an email
to [EMAIL PROTECTED] with the words 'unsubscribe cfcdev' 
in the message of the email.

CFCDev is run by CFCZone (www.cfczone.org) and supported
by Mindtool, Corporation (www.mindtool.com).
An archive of the CFCDev list is available at www.mail-archive.com/[EMAIL PROTECTED]