Anthony, yes you do need to lock variables as shown in your example as a
ReadOnly lock, believe when I tell you not locking can be very debilitating
to an application. There are alternatives, for instance we create and read
all our Session variables in the request scope which does not need to be
locked then we use these two pieces of code as follows: -
In Application.cfm
<cflock scope="SESSION" timeout="30" type="READONLY">
<cfset structappend(request,Duplicate(session))>
</cflock>
In OnRequestEnd.cfm
<cflock scope="SESSION" type="EXCLUSIVE" timeout="30">
<cfset structAppend(session,Duplicate(request))>
</cflock>
Using this method you can write read all variables as request while using
the Session scope to persist them. You could then recode all your session
vars to request either in one large exercise or if this is too big a job
selectively change them as they cause issues. Hth.
Kind Regards - Mike Brunt, CTO
Webapper
Blog http://www.webapper.net
Web site http://www.webapper.com
Downey CA Office
562.243.6255
AIM - webappermb
Web Application Specialists
-----Original Message-----
From: Antony Sideropoulos [mailto:[EMAIL PROTECTED]]
Sent: Monday, November 25, 2002 6:08 PM
To: CF-Talk
Subject: Locking Session Vars (CF5)
Hi everyone
Under the philosophy that rules are made to be broken, I have routinely
broken the rule about always locking session variables.
However, I'm trying to mend my ways.
My question is this:
Do I need to lock my session variables in the following example? If so,
what is the best / quickest / easiest way to do so:
<CFIF IsDefined("Session.Collections.Role") AND (Session.Collections.Role EQ
"Medium" or Session.Collections.Role EQ "High")?
To my mind, having to code a lock for the session variable used in the above
if statement adds a lot of extra lines of code, and takes longer to develop.
(My CF5 administrator settings are No automatic checking or locking for
server, application and session scope vars, and the single threaded sessions
box is not checked.)
TIA
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