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Trick to implementing NSKeyValueCoding?

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Trick to implementing NSKeyValueCoding?

Subject: Trick to implementing NSKeyValueCoding?
From: Arturo Perez <email@hidden>
Date: Mon, 21 Mar 2005 09:19:35 -0500

Hi all,

I had grueling debugging session to track this down so it's more in the vein of a heads-up than anything else.

I wanted to manipulate values on the setObject.../objectFor and takeValues../valuesFor.. methods. So I coded a proxy class to a NSMutableDictionary. I put in that it "implements NSKeyValueCoding" and it promptly caused me enormous grief. Essentially, methods that worked without the implements clause don't work with the implements clause. That is, if I put in "implements NSKeyValueCoding" then methods that previously worked fine as WebObjects Builder bindings stopped returning values. Very strange, not what I expected and 8 debugging hours later I tracked it down to those two keywords.

To solve the problem I put in "implements NSKeyValueCoding.ErrorHandling" instead (and implemented the required methods, of course). That achieved the effect I was looking for.

So, bottom line. Is there a trick to implementing the NSKeyValueCoding interface? _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: This email sent to email@hidden Prev by Date: Deserialze to NSDictionary with proper type? Next by Date: Re: Deserialze to NSDictionary with proper type? Previous by thread: Re: Deserialze to NSDictionary with proper type? Next by thread: Am I using EOUtilities.createAndInsertInstance() correctly? Index(es): Date Thread