Re[4]: Recent key-value encoding changes to NSObject.

[Manuel Guesdon]

On Mon, 11 Feb 2002 15:46:33 +0000 Richard Frith-Macdonald <address@hidden> 
wrote:
 >| Example -
 >| 
 >| @implementation MyObject
 >| - (id) takeValueForKey: (NSString*)aKey
 >| {
 >|    id result = [myDictionary objectForKey: aKey];
 >| 
 >|    if (result == nil)
 >|      {
 >|        result = [super takeValueForKey: aKey];
 >|      }
 >|    return result;
 >| }
 >| @end
 >| 
 >| Zero code duplication.
 >| Works for MyObject and all subclasses.
 >| What is wrong with this in the case you are concerened about?

values can be stored in a mixed way: ivars or dictionary as the user like (in 
objects derived from EOGenericRecords).
Calling takeValue:anObject forKey:aKey should call -[aKey] if it exists for the 
derived object.

Please see my last new mail wich contain a "real" example.

Manuel

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