Hi everyone,
I've been reading Object-Oriented Programming with Objective-C, Cocoa
Fundamentals Guide and The Objective-C 2.0 Programming Language guide
and I still have an unanswered question regarding object networks.
Say I have my controller object "Controller", a model class "Model"
and a custom class "textParser". Controller creates an instance of
both Model and textParser. As such, Controller can communicate with
both the instantiated classes as it has a direct reference to them.
But how can I communicate between Model and textParser? How do they
know about each other? I have an #import statement in the respective
class in both cases but I don't understand where any connection lies
beyond that. Sure they know about each others class, but not the
instances of that class. More abstractly, how do I get one arbitrary
object to communicate with another? What reference do I use?
file:///Developer/Documentation/DocSets/com.apple.ADC_Reference_Library.CoreReference.docset/Contents/Resources/Documents/documentation/Cocoa/Conceptual/CocoaFundamentals/CommunicatingWithObjects/chapter_6_section_3.html
states:
"An application typically sets outlet connections between its custom
controller objects and objects on the user interface, but they can be
made between any objects that can be represented as instances in
Interface Builder, even between two custom objects. As with any
instance variable, you should be able to justify its inclusion in a
class; the more instance variables an object has, the more memory it
takes up. If there are other ways to obtain a reference to an object,
such as finding it through its index position in a matrix, or through
its inclusion as a function parameter, or through use of a tag (an
assigned numeric identifier), you should do that instead."
Okay, if there are other ways of referencing an object, how? I haven't
found any clear examples of function parameters or tags.
file:///Developer/Documentation/DocSets/com.apple.ADC_Reference_Library.CoreReference.docset/Contents/Resources/Documents/documentation/Cocoa/Conceptual/OOP_ObjC/Articles/chapter_5_section_1.html
talks about an object network, yet doesn't say how to create it.
(ref Figure 3-2 Object Network)
Any pointers to any docs on how this works would be greatly appreciated.
Regards,
Jason
_______________________________________________
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
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:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to [EMAIL PROTECTED]
