Jim, Thank you sir for the answer. Do you know how long the time to live is? Where do you set the time? ----- Original Message ----- From: "Jim Davis" <[EMAIL PROTECTED]> To: "CF-Talk" <cf-talk@houseoffusion.com> Sent: Wednesday, May 11, 2005 12:01 AM Subject: RE: Server Scope
>> -----Original Message----- >> From: David Brown [mailto:[EMAIL PROTECTED] >> Sent: Tuesday, May 10, 2005 11:41 PM >> To: CF-Talk >> Subject: Server Scope >> >> A few questions: >> >> Is it good practice or wise to create an object in the server scope? And >> if so how long does it live? I see in the administrator Memory Variables >> you can set the application and Session time to live, but not server >> scope. > > Generally it's only wise to use the server scope on servers (or instances) > you control completely - never trust it on shared servers. This doesn't > just mean hosting but also internal shared servers (consolidated corporate > application servers for example). It's just not worth it. > >> What I want to do. >> >> <cfif (not structKeyExists(server, "MyPalAuth")) or >> isdefined("url.Flush")> >> >> <cflock name="Lock_MyPalAuth" timeout="5" type="EXCLUSIVE"> >> >> <cfobject name="Server.MyPalAuth" component="mycoms.MyPalAuth"> >> >> </cflock> >> >> </cfif> > > Depending on the need for this you may not need the lock - or you may need > a > better check. > > Your first CFIF checks to see if something exists: but multiple requests > may > hit that at the same time. This means that multiple templates will be > sitting on that lock - waiting for it to free up. > > So if you start your server under load your <cfobject> call may occur > multiple times. To prevent this you'll need to do your check twice (but > only do the URL check the first time): > > <cfif (not structKeyExists(server, "MyPalAuth")) or isdefined("url.Flush") > > > <cflock name="Lock_MyPalAuth" timeout="5" type="EXCLUSIVE"> > <cfif (not structKeyExists(server, "MyPalAuth"))> > > <cfobject name="Server.MyPalAuth" component="mycoms.MyPalAuth"> > > </cfif> > </cflock> > </cfif> > >> I read this from Ben's new Advanced Macromedia ColdFusion MX 7 >> Application >> Development book. But he used Application scope. I want the object to be >> created once on our intranet and then invoke it when needed in more then >> one application. I could place it in the application scope, but then that >> would mean for each application I would have to recreate the object. > > It sound like a perfect use for the Server Scope. > > Jim Davis > > > > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Logware (www.logware.us): a new and convenient web-based time tracking application. Start tracking and documenting hours spent on a project or with a client with Logware today. Try it for free with a 15 day trial account. http://www.houseoffusion.com/banners/view.cfm?bannerid=67 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:206307 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
