cfc accessing session scope - bad?
Is it a bad practice to have a cfc access a session variable? Should the session variable be passed in as an argument instead? ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology-Michael-Dinowitz/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:333834 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: cfc accessing session scope - bad?
Best practice is to pass in the session variable. There can be issues with calling a persistent scope directly within a CFC, typically around application performance and proper garbage collection. Steve Cutter Blades Adobe Community Professional - ColdFusion Adobe Certified Professional Advanced Macromedia ColdFusion MX 7 Developer Co-Author of Learning Ext JS http://www.packtpub.com/learning-ext-js/book _ http://blog.cutterscrossing.com Matthew P. Smith wrote: Is it a bad practice to have a cfc access a session variable? Should the session variable be passed in as an argument instead? ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology-Michael-Dinowitz/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:333835 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: cfc accessing session scope - bad?
In general, yes. The exceptions are if you have a method specifically meant to encapsulate access session scope so that other methods in the object can get to that data (i.e. a getCurrentUser() method in a UserService), or if you create a dedicated SessionProxy object that other objects use to access data in the session scope. On Thu, May 20, 2010 at 8:04 AM, Matthew P. Smith m...@smithwebdesign.netwrote: Is it a bad practice to have a cfc access a session variable? Should the session variable be passed in as an argument instead? ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology-Michael-Dinowitz/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:333836 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: cfc accessing session scope - bad?
I've got an example of a Session Facade (or Session Proxy?) on my site: http://www.iknowkungfoo.com/blog/index.cfm/2007/2/12/Using-a-Session-Facade-to-handle-evolving-session-variables --- Adrian In general, yes. The exceptions are if you have a method specifically meant to encapsulate access session scope so that other methods in the object can get to that data (i.e. a getCurrentUser() method in a UserService), or if you create a dedicated SessionProxy object that other objects use to access data in the session scope. On Thu, May 20, 2010 at 8:04 AM, Matthew P. Smith m...@smithwebdesign.netwrote: Is it a bad practice to have a cfc access a session variable? Should the session variable be passed in as an argument instead? ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology-Michael-Dinowitz/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:333863 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: cfc accessing session scope - bad?
Me too! Me too! Me too! :) http://www.cfgears.com/index.cfm/2009/12/3/Using-a-Session-Facade-in-ColdFusion I can vouch for Adrian's article, though. When I first started working with Session Facades in Mach-II, the post he linked to below went a long way in helping me understand them. Thanks, Eric Cobb ECAR Technologies, LLC http://www.ecartech.com http://www.cfgears.com Adrian Moreno wrote: I've got an example of a Session Facade (or Session Proxy?) on my site: http://www.iknowkungfoo.com/blog/index.cfm/2007/2/12/Using-a-Session-Facade-to-handle-evolving-session-variables --- Adrian In general, yes. The exceptions are if you have a method specifically meant to encapsulate access session scope so that other methods in the object can get to that data (i.e. a getCurrentUser() method in a UserService), or if you create a dedicated SessionProxy object that other objects use to access data in the session scope. On Thu, May 20, 2010 at 8:04 AM, Matthew P. Smith m...@smithwebdesign.netwrote: Is it a bad practice to have a cfc access a session variable? Should the session variable be passed in as an argument instead? ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology-Michael-Dinowitz/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:333864 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
