RE: [CFCDev] concerning this / variables scope in cfc

[Jeffry Houser]

 I would use "get" methods to retrieve the values of CFC instance 
variables instead of copying them to a public scope.

At 11:19 AM 11/15/2004, you wrote:
I do something with "this" scope still. I create a variables.attributes
scope and a private function to set this = duplicate(variables.attributes)
function. Then I use the variables as read only... even if a user messes
with them, they will return the wrong values, but they won't keep the CFC
from having correct internals. If I change anything, I call the set function
again. Let me repeat... they are used as read only... your internal code in
the CFC should never address them, instead I use the variables.attributes
and update the exposed values as read only CFC attributes. Works great for
me, makes the object simpler to acquire attributes.
Just my personal style.
John Farrar
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Patrick McElhaney
Sent: Monday, November 15, 2004 7:50 AM
To: [EMAIL PROTECTED]
Subject: Re: [CFCDev] concerning this / variables scope in cfc
On Sun, 14 Nov 2004 17:28:07 +0100, Magnus Wege <[EMAIL PROTECTED]> wrote:
> So can anybody point me to a link or give examples how and when to use the
> different scopes this/variables?
>
Once I figured it out I created myself a little cheat sheet.
<cfcomponent>
  <cfset variables.private = "A private instance variable">
  <cfset this.public = "A public instance variable">
  <cffunction name="foo">
    <cfargument name="anArgument">
    <cfset var localFooVar = "">
    <cfset localFooVar = "Available within the scope of this function">
    <cfoutput>
      You passed me: #arguments.anArgument#
      I have a local var, whose value is:#localFooVar#.
      I have an private instance variable, whose value is
#variables.private#.
      I have an public instance variable, whose value is #this.public#.
    </cfoutput>
  </cffunction>
</cfcomponent>
Patrick
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