Object class name/setObjectClass in NSController

Subject: Object class name/setObjectClass in NSController
From: Gwynne <email@hidden>
Date: Fri, 2 Jul 2004 13:27:13 -0400

My question is simple: What do these mean? In Interface Builder, both NSObjectController and NSArrayController provide a field for "Object class name", which is mirrored in their interfaces by the setObjectClass: method. The documentation is rather unhelpful, having only this to say:

"By default the content object of an NSObjectController instance is NSMutableDictionary. This allows a single NSObjectController instance to be used to manage many different properties referenced by key value paths. The default content object class can be changed by calling setObjectClass:, which subclassers must override."

But that doesn't really tell me much. What would happen if I changed it to NSMutableArray or NSMutableSet, or a class of my own? What exactly does this class name represent for NSObjectController? I looked in the list archives, but I couldn't find anything relevant.

-- Gwynne, key to the Code that runs us all
Formerly known as Sailor Quasar.
Email: email@hidden
Web: http://musicimage.plasticchicken.com/
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