Kerry, i don't think there's much of any reason to create an object and place it in application scope unless you make it a singleton that persists until the application scope times out. At least i can't think of one.
The MM docs say that if you create an object in Application.cfc's onApplicationStart() method (CFMX7) and place it in application scope, you'll get a singleton. The underlying machinery there will ensure that. Ok, i believe them ... If you need some functionality elsewhere in your application on occasion, and also on "onAppStart" ... i'd put that in it's own method and call that method from within onApplicationStart() to seperate ... intelligently modularize the two things. How does that sound? :) n -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Kerry Sent: Friday, May 13, 2005 11:07 AM To: [email protected] Subject: RE: SPAM-LOW: RE: [CFCDev] Singleton / Factory request but, if you are creating the object in app scope, and x number of requests cause the appstart code to run, then each subsequent request will overwrite the last one, so there will still only be one instance of the object? in saying that, I would do the lock because its nice and tidy. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Nando Sent: 12 May 2005 21:11 To: [email protected] Subject: RE: SPAM-LOW: RE: [CFCDev] Singleton / Factory request I'll contradict Peter here and say that yes you do need to lock that code block as shown for the reason stated if you want to guarentee that one and only one instance of that object can exist. I assumed you were on MX7, because you referred to Application.cfc, but i guess you meant Application.cfm -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Peter J. Farrell Sent: Thursday, May 12, 2005 9:42 PM To: [email protected] Subject: Re: SPAM-LOW: RE: [CFCDev] Singleton / Factory request Peter H wrote: > On the subject of locking, I'm using cf6.1 - do I still need to lock? No, unless you are trying a to prevent a race condition. The archives have a lot about race conditions as well as a few articles on Macr. Best, .Peter -- Peter J. Farrell :: Maestro Publishing blog :: http://blog.maestropublishing.com email :: [EMAIL PROTECTED] Create boilerplate beans! Check out the Mach-II Bean Creator - free download. http://blog.maestropublishing.com/mach-ii_beaner.htm You need only two tools: WD-40 and Duct Tape If it doesn't move and it should, use WD-40. If it moves and shouldn't, use the duct tape. -- ---------------------------------------------------------- You are subscribed to cfcdev. To unsubscribe, send an email to [email protected] with the words 'unsubscribe cfcdev' as the subject of the email. CFCDev is run by CFCZone (www.cfczone.org) and supported by CFXHosting (www.cfxhosting.com). CFCDev is supported by New Atlanta, makers of BlueDragon http://www.newatlanta.com/products/bluedragon/index.cfm An archive of the CFCDev list is available at www.mail-archive.com/[email protected] ---------------------------------------------------------- You are subscribed to cfcdev. To unsubscribe, send an email to [email protected] with the words 'unsubscribe cfcdev' as the subject of the email. CFCDev is run by CFCZone (www.cfczone.org) and supported by CFXHosting (www.cfxhosting.com). CFCDev is supported by New Atlanta, makers of BlueDragon http://www.newatlanta.com/products/bluedragon/index.cfm An archive of the CFCDev list is available at www.mail-archive.com/[email protected] ---------------------------------------------------------- You are subscribed to cfcdev. To unsubscribe, send an email to [email protected] with the words 'unsubscribe cfcdev' as the subject of the email. CFCDev is run by CFCZone (www.cfczone.org) and supported by CFXHosting (www.cfxhosting.com). CFCDev is supported by New Atlanta, makers of BlueDragon http://www.newatlanta.com/products/bluedragon/index.cfm An archive of the CFCDev list is available at www.mail-archive.com/[email protected] ---------------------------------------------------------- You are subscribed to cfcdev. To unsubscribe, send an email to [email protected] with the words 'unsubscribe cfcdev' as the subject of the email. CFCDev is run by CFCZone (www.cfczone.org) and supported by CFXHosting (www.cfxhosting.com). CFCDev is supported by New Atlanta, makers of BlueDragon http://www.newatlanta.com/products/bluedragon/index.cfm An archive of the CFCDev list is available at www.mail-archive.com/[email protected]
