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

