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Re: Re: KVO question

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Re: Re: KVO question

Subject: Re: Re: KVO question
From: "Peter Boctor" <email@hidden>
Date: Tue, 23 May 2006 07:58:45 -0700

On 5/23/06, George Orthwein <email@hidden> wrote:


On May 22, 2006, at 8:29 PM, Peter Boctor wrote:
> How can the observeValueForKeyPath implementation determine
> what actually changed, "current" or "current.bar"?

Isn't this what context is for?

Alternatively, can't you just do an if/then in observeValueForKeyPath:

if ([keyPath isEqualToString:@"current"]) ...
...
else if ([keyPath isEqualToString:@"current.bar"]) ...


I'd like to know when a "current.bar" notification occurred because bar
actually changed versus when it occurred because "current" changed. Neither
the context nor the keyPath can indicate this.

-peter
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Follow-Ups:

Re: Re: KVO question
From: Christian Brunschen <email@hidden>


References:  
  >KVO question (From: "Peter Boctor" <email@hidden>)
  >Re: KVO question (From: George Orthwein <email@hidden>)




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