Jeffry, You may want to try using the REQUEST variable scope, as it is available to all referenced pages (using includes, custom tags, etc.).
However, as far as "the best" variable scope..... each has strengths and weaknesses. Please let me know if I can be of assistance. Thank you, John M Stover II [EMAIL PROTECTED] -----Original Message----- From: Jeffry Houser [mailto:[EMAIL PROTECTED]] Sent: Wednesday, June 26, 2002 10:26 AM To: CF-Talk Subject: RE: What is the best variable scope? Application scope variables are a shared scope. You should always lock shared scopes (I.E. Session, Application, and Server) variables. In version of ColdFusion 5 or less, this will prevent memory corruption and server crashes. In ColdFusion MX, Macromedia fixed the problems with memory corruption / server crashes, but you still want to lock to avoid racing (I believe the term is racing) conditions, which is two people accessing the same variable at the same time. There is more information about racing conditions in ColdFusion documentation, and if memory serves me there is a locking article on the desdev site somewhere. At 10:15 AM 6/26/2002 -0400, you wrote: >I wasn't aware you should lock application scope variables. What's the >reason behind it? > >On Wed, 26 Jun 2002, Jeffry Houser wrote: > > > At 03:18 AM 6/26/2002 -0400, you wrote: > > > > However, many people use the application scope for things that I > don't > > > > consider good ideas (such as a datasource varaible). > > > > > >Can you elaborate? > > > > In the example I specified, a datasource variable. > > > > First you have to put it into an application variable, so code similar to > > this goes into the Application.cfm : > > > > <cflock> > > <cfif isDefined("Application.dsn")> > > <cfset application.dsn = "mydatasource"> > > </cfif> > > </cflock> > > > > > > Now you have to lock all your query statements every time you reference > > the variable: > > > > <cflock> > > <cfquery datasource="#application.dsn#"> > > > > </cfquery> > > </cflock> > > > > > > In this case, you have added additional locking code, which takes > > additional processing time, with no real added benefit for storing the > > datasource information in an application variable. > > > > > > -- > > Jeffry Houser | mailto:[EMAIL PROTECTED] > > Need a Web Developer? Contact me! > > AIM: Reboog711 | Fax / Phone: 1-203-379-0773 > > -- > > My CFMX Book: > > <http://www.amazon.com/exec/obidos/ASIN/0072225564/instantcoldfu-20> > > My Books: http://www.instantcoldfusion.com > > My Band: http://www.farcryfly.com > > > > > ______________________________________________________________________ Structure your ColdFusion code with Fusebox. Get the official book at http://www.fusionauthority.com/bkinfo.cfm FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/[email protected]/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
