I read it and heard it from GWT gurus that because of the nature of AJAX
apps, we should embrace the asynchronous nature of the calls. I understand
the concept but I am not 100% sure about how to design the following
requirement:
My View displays some data that is produced using the combination of some
data from an RPC call and some data from local (it's a mobile app, so it
gets some data from local file or db). The Presenter is supposed to get all
the required data and refresh the view.
Now, I want to wrap all these individual calls (one call to RPC and one
call to fetch local data), into a single call in a Facade. So ideally, in
my Presenter, i want to call :
facade.getAllData( new MyCallBackHander(){
void onFailure(){ }
void onSuccess(){
update the model and call refresh on the view
}
} );
I am not sure if this is the right approach. I would like to use this
pattern for all the calls made by various Presenters and I am not sure how
to make it generic and how to code the getAllData method in the facade.
Please help.
thank you!
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