I agree, but it can; since the map knows about the PM anyway. This is where Swiz has an advantage with the Mediate metadata. In that case the PM method can just listens for an event; which can be dispatched on fault.
-TH --- In [email protected], Richard Rodseth <rrods...@...> wrote: > > The map shouldn't interact with the PM (other than building it with > ObjectBuilder and injecting it into the view). > I'm leaning towards a). That way it's centralized and manager properties can > potentially be injected into multiple presentation models. > > > > > On Fri, Jul 2, 2010 at 1:56 PM, turbo_vb <timh...@...> wrote: > > > > > > > I usually use (b). For the error, you can call a public method in the PM > > from the faultHandler in the map; as one alternative. > > > > > > --- In [email protected] <flexcoders%40yahoogroups.com>, Richard > > Rodseth <rrodseth@> wrote: > > > > > > Design question for any other Mate users out there. Will cross-post to > > Mate > > > forum. > > > > > > I use Mate with the Manager + Presentation Model pattern. > > > i.e. presentation model dispatches bubbling events. Mate event map > > invokes > > > services calls, sets result on manager. Properties are injected from > > manager > > > to presentation model. > > > > > > I find it very convenient to have a "data status" property in the > > > presentation model for each service call, with values NOT_CURRENT, > > LOADING, > > > LOADED and ERROR. Then the view can display appropriate status and > > progress > > > indicators based on this property. > > > > > > One approach (a) is to have the event map set the status on the manager > > and > > > have the map inject that status into the presentation model. > > > > > > Another (b) is to set the status in the presentation model just before > > > dispatching the event, and when receiving the result (i.e. in a custom > > > setter). > > > > > > I like the directness of (b), but it doesn't cover the error case unless > > the > > > manager also has something like a faultevent property that also gets > > > injected into the presentation model. > > > > > > A third approach (c) would use listener injectors. The map would inject a > > > listener into the presentation model and would announce a special failure > > > event. > > > > > > Thoughts? > > > > > > > > > >
