Asyncronous message handling
Asyncronous message handling
- Subject: Asyncronous message handling
- From: "Mohan Parthasarathy" <email@hidden>
- Date: Tue, 6 Jan 2009 10:14:00 -0800
Hi,
I am new to cocoa and hence i have this basic question for which i could not
find a good answer after researching on this topic.
Let us say that there are two objects A and B.
1) Object A produces some data
2) Object B consumes the data produced by object A
When object B sends a message to object A for fetching the data, the data is
not available immediately. When the data arrives later, it needs to notify
object B.
For example, object A fetches data from some web service and Object B is
some sort of a "controller". How does one handle this in Cocoa ?
- I can include the functionality of Object A within Object B itself and
hence there is no issue. But i guess this is prohibited as per the MVC
design.
- Object A can retain object B and later send the message back when data is
available. But then this creates a dependency of object B knowing object A
and object A knowing object B. Is this okay ?
- Any other way ?
Any help on this would be appreciated.
Thanks
mohan
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden