overriding certain NSKeyValueCoding methods in EOs
overriding certain NSKeyValueCoding methods in EOs
- Subject: overriding certain NSKeyValueCoding methods in EOs
- From: Florijan Stamenkovic <email@hidden>
- Date: Sun, 15 Apr 2007 13:50:44 +0200
Hi all,
I have an idea, but am not sure if it would be EOF acceptable.
Essentially, I would like to expand the KVC system somewhat. The
point would be this:
public Object valueForKey(String key){
try{
return super.valueForKey(key);
}catch(Exception ex){
Object rVal = valueForCustomKey(key);
if(rVal != null) return rVal;
throw ex;
}
}
public Object valueForCustomKey(String key){
// find a key in another system as EOF's KVC
...
}
So, if there is not EOF result for a key, try the additional
implementation. It would be ideal of course to get this to work with
the rest of KVC, to enable sums, counts, and all that stuff on custom
keys as well. What I am thinking / hoping at the moment is that KVC
is implemented so that for retrieving and setting values for keys it
relies on a narrow set of methods (NSKeyValueCoding interface
only???)...
Any words of wisdom?
Thanks!
Florijan
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