Re: EO Constructor
Re: EO Constructor
- Subject: Re: EO Constructor
- From: David LeBer <email@hidden>
- Date: Wed, 11 Nov 2009 21:09:41 -0500
On 2009-11-11, at 8:44 PM, Chuck Hill wrote:
>
> On Nov 11, 2009, at 5:38 PM, Tavis McDevitt wrote:
>
>>
>> I'm reading Marker's "WebObjects 5 for Mac OS X." He details a method of providing default values for a component's form: he sets an EO's attributes in it's constructor. Then the bindings to those attributes cause the form displayed to the user to have default values. He does this because the EO has not been inserted into the EC yet and so awakeFromInsertion has not been called.
>
> Shriek!!! Shriek!!! Shriek!!!
>
> <homer_the_scream1.jpg>
Yeah, that was a decent book except for that one major flaw.
<http://davidleber.net/?p=198>
>
>
>
>
>> I am of the understanding that only non attribute (temporary) variables can be safely initialized in the constructor. What is a better way to provide default values on a form bound to a new EO?
>>
>
> There is only one way to safely and correctly supply default faults: use awakeFromInsertion. And EO not in an EC is a disaster waiting to happen.
>
>
> Chuck
>
>
> --
> Chuck Hill Senior Consultant / VP Development
;david
--
David LeBer
Codeferous Software
'co-def-er-ous' adj. Literally 'code-bearing'
site: http://codeferous.com
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--
Toronto Area Cocoa / WebObjects developers group:
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