On Jul 8, 2008, at 2:28 AM, Mike Abdullah wrote:
On 8 Jul 2008, at 07:10, Steve Weller wrote:
What I am attempting to do is not working. -valueForKey: does not
look for methods with -respondsToSelector: to figure out if methods
exist sufficient to have KVC. So overriding this has no effect. My
only option, it seems, is to use +resolveInstanceMethod and
actually create the methods that are needed.
Or, you know, just override -valueForKey: ? NSArray and the other
contain classes do just that to get their custom behaviour.
Then I'd need to create an NSArray proxy, probably by subclassing
NSArray. This was the way I first thought of and decided not to go
that route.
My current thinking is to hard-code -count and -objectForKey (and
possibly others) in a helper object, then vend instances of that
according to what the array should implement. Each of those objects
ultimately gets its data from a single source, so if I change values,
all the arrays' customers see the changes. It is likely that I will
want KVO compliance one day too and that will not work with the helpers.
Steve Weller [EMAIL PROTECTED]
Technical Writing, Editing, Developer Guides, and a little Cocoa
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