On 10/29/07, Rich <[EMAIL PROTECTED]> wrote: > I would suggest that you create a Session Facade and then have all your > objects reference the façade. It is generally a bad idea to have an object > reference an external scope (session, request, etc.), and this technique > hides the implementation from your business objects.
And having references to sessionFacade.getFoo() everywhere is somehow better than having references to session.foo? Having a giant kitchen sink session facade CFC is not a good idea and is not encapsulation. That sort of session facade is not a coherent object and having "sessionfacade" everywhere means you have not encapsulated use of session scope at all - you've just required that people call functions to get at data. The better solution is to consider what data you have in session scope in the first place and encapsulate each piece of data in an object that relates to that data. You might have a user object in session scope - encapsulate that knowledge in a userService (singleton). That way you've encapsulated how the user is stored - none of your application code knows about session scope (or sessionFacade!). You ask the service to perform operations on the current user and it knows how to do that. It can even give you the user object if you want to operate on it directly. That means your application code is only dependent on a fully encapsulated service. It also means that you can change how the user object is stored independent of any other data in session scope (because that other data is encapsulated elsewhere) and nothing in your application needs to change. Sorry, but this weird obsession with sessionFacade CFCs drives me nuts - it's completely misguided and a very procedural way of thinking. -- Sean A Corfield -- (904) 302-SEAN An Architect's View -- http://corfield.org/ "If you're not annoying somebody, you're not really alive." -- Margaret Atwood ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| ColdFusion is delivering applications solutions at at top companies around the world in government. Find out how and where now http://www.adobe.com/cfusion/showcase/index.cfm?event=finder&productID=1522&loc=en_us Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:292273 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
