Anytime you even look sideways at a shared scoped variable, that is
considered a read.
<cfif isDefined('Application.variable')>
</cfif>
would be considered a read.
-----Original Message-----
From: David Green [mailto:[EMAIL PROTECTED]]
Sent: Monday, November 12, 2001 9:22 AM
To: CF-Talk
Subject: Re: i don't understand cflock? can you explain it?
Another question on understanding CFLOCK. when you say reading the
variable what is considered a read. Any time you use the variable say in a
cfoutput. Is this a read and should be locked?
Thanks
David
----- Original Message -----
From: "Beau Harbin" <[EMAIL PROTECTED]>
To: "CF-Talk" <[EMAIL PROTECTED]>
Sent: Monday, November 12, 2001 6:27 AM
Subject: RE: i don't understand cflock? can you explain it?
> Paul,
>
> The simple rule of thumb is that if you are using
> application, session or server variables then you need to
> lock them on reads and writes. Meaning if you have a variable
> called Application.DSN, then you need to lock it when you
> write it and also lock it when you read it.
>
> If your application does not use application, session or server
> variables, then you don't have to worry about it.
>
> See Nate Weiss' talk at DevCon on locking for more information:
> http://www.nateweiss.com
>
> Good luck,
> Beau
>
>
> -----Original Message-----
> From: Paul Ihrig [mailto:[EMAIL PROTECTED]]
> Sent: Monday, November 12, 2001 9:25 AM
> To: CF-Talk
> Subject: i don't understand cflock? can you explain it?
>
>
> in the WACK 4.0 & AID book's there is only a 1/2 page or so related to
> it.
> in mastering cf 4.0 there are a few pages about it, that i really don't
> understand.
>
> if i am not using application variables, just calling data sources for
> drop
> down list
> as well as calling data source for update pages, should i use cflock?
>
> you know just your standard generic forms, which is about 80% of my
> daily
> work here.
>
> how can i get a good grasp of WHY to use them?
>
> Thanks in advance.
> any advice would be great!
>
>
>
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