What Happens When I Cache Application.cfc Within The APPLICATION Scope?
Posted March 14, 2007 at 11:39 AM by Ben Nadel
Pretty much nothing exciting :) But I wanted to try it to see if stuff would blow up. If nothing else, it proves that a new Application.cfc instance is created for every single page request. This test is super, ultra simple. Here is my Application.cfc ColdFusion component:
- <cfcomponent>
-
- <cfset THIS.Name = "App Cache Test" />
- <cfset THIS.ApplicationTimeout = CreateTimeSpan( 0, 0, 5, 0 ) />
-
- <!---
- Here, I am creating a unique ID for this Application.cfc
- just to help see if one instance is the same as another.
- --->
- <cfset THIS.ID = CreateUUID() />
-
- <cffunction
- name="OnRequestStart"
- access="public"
- returntype="boolean"
- output="false">
-
- <!---
- Param an array in the APPLICATION scope to hold all
- of our App.cfc instances.
- --->
- <cfparam
- name="APPLICATION.Apps"
- type="array"
- default="#ArrayNew( 1 )#"
- />
-
- <!---
- Append THIS application.cfc instance to our
- cached array.
- --->
- <cfset ArrayAppend(
- APPLICATION.Apps,
- THIS
- ) />
-
- <cfreturn true />
- </cffunction>
-
- </cfcomponent>
Then, my index.cfm page merely CFDumps out the APPLICATION scope:
- <!---
- Dump out the APPLICATION scope. Put in a TOP 10 to
- make sure nothing goes crazy.
- --->
- <cfdump
- var="#APPLICATION#"
- top="10"
- />
After running that page a few times, here is what I get:
| | | | ||
| |  | | ||
| | | |
As you can see, nothing exciting going on here. At least it didn't go kabooom!
Reader Comments
Oct 8, 2009 at
11:58 AM
//
reply »
2 Comments
18 Points
thank you....
