I'm not using it so I can't comment on the implementation, but the callbacks are definitely a good idea. Letting each individual view know when whatever it has kicked off has either succeeded or failed in a standard way (whatever that may be) is great.
It'd be nice if we could get an AsyncToken of some sorts from dispatchEvent() would be a much nicer way I think. Or even another method on EventDispatcher such as lastEventToken() : Token - although that's kinda nasty, and would have to rely on a ThreadLocal analogue if AS3 finds its way into a threaded environment. -J On Wed, Apr 30, 2008 at 9:40 AM, Bjorn Schultheiss < [EMAIL PROTECTED]> wrote: > Agreed > - Model has no reference to the view Classes. > > But it can still drive the creation of the view. > > For example, you might have an arrayCollection, the amount of items in > the arrayCollection determine the amount of windows on display.. > The items within the arrayCollection may be the 'dataProviders' for > each window, not necessarily a reference to the view classes but still > responsible for driving the view. > > With regards to the additions to Cairngorm UM released, I'm still not > sold on the benifits of all of them or the implementation. > > > --- In flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com>, "Josh > McDonald" <[EMAIL PROTECTED]> wrote: > > > > The whole point of MVC is that the model knows *nothing* about the view. > > Which is one of the reasons UM is a great extension to Cairngorm. > > > > -J > > > > On Wed, Apr 30, 2008 at 8:46 AM, Bjorn Schultheiss < > > [EMAIL PROTECTED]> wrote: > > > > > I think the problem is that the current flex framework architecture > > > doesn't conceptually work well with Cairngorm. > > > There's too much logic encapsulated into the view. > > > > > > Ideally you would like to drive the entire app via the model. > > > > > > It would be ideal if your model was managing how many windows are > > > currently open and therefore knows which data models to tear down. > > > > > > --- In flexcoders@yahoogroups.com > > > <flexcoders%40yahoogroups.com><flexcoders% > 40yahoogroups.com>, "Ben > > > > Clinkinbeard" > > > > > > <ben.clinkinbeard@> wrote: > > > > > > > > You definitely don't want your model keeping track of views using > > > its data. > > > > My 30 second recommendation would be to look into the UM Cairngorm > > > > extensions as they can help you reduce the amount of clutter that > > > needs to > > > > be stored on the/a model. Specifically view callbacks is the feature > > > that > > > > helps enable that. Search flexcoders for additional discussion of UM > > > > Cairngorm. > > > > > > > > HTH, > > > > Ben > > > > > > > > > > > > On Tue, Apr 29, 2008 at 12:24 PM, gerhard.schlager < > > > > gerhard.schlager@> wrote: > > > > > > > > > Hello! > > > > > > > > > > I'm currently creating the software design for a large application > > > > > which we are going to build using Flex 3, Cairngorm 2.2.1 and > SabreAMF > > > > > (PHP). I have already created my first prove of concept, > however, I > > > > > have a few issues with Cairngorm's Model Locator. > > > > > > > > > > 1) How can I make sure that unused data gets removed from the > Model > > > > > Locator? The simple solution would be to destroy the data that > a view > > > > > loaded when the view gets closed. However, we are going to use > flexmdi > > > > > and it's quite possible that one or more MDI windows are using the > > > > > same data. The only solution I've come up so far is to make > the Model > > > > > Locator aware of which window uses which data. Therefore it > could free > > > > > the unused data when no view uses it anymore. Yet, this could be a > > > > > very error-prone solution. Moreover, I would loose the last bit of > > > > > loose coupling. So, I'm not sure if that's a good way to > handle this. > > > > > Well, the Model Locator itself is often seen as an anti-pattern as > > > > > well ... > > > > > > > > > > 2) Should I really put everything into _one_ Model Locator? I > guess > > > > > there could be quite a large number of public variables. Our > > > > > application will have up to 50 different views and about twice > as many > > > > > VO ... > > > > > > > > > > I'd be really grateful if somebody could enlighten my ;-) or > if you > > > > > could give me some tips on how to solve those two problems. > > > > > > > > > > Thanks in advance for your help. > > > > > > > > > > Best regards, > > > > > Gerhard > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > "Therefore, send not to know For whom the bell tolls. It tolls for > thee." > > > > :: Josh 'G-Funk' McDonald > > :: 0437 221 380 :: [EMAIL PROTECTED] > > > > > -- "Therefore, send not to know For whom the bell tolls. It tolls for thee." :: Josh 'G-Funk' McDonald :: 0437 221 380 :: [EMAIL PROTECTED]
