Apples's code examples... Poor coded or it is just me?
Apples's code examples... Poor coded or it is just me?
- Subject: Apples's code examples... Poor coded or it is just me?
- From: Yanko Ivanov <email@hidden>
- Date: Wed, 6 Feb 2008 12:05:17 +0100
Hello all!
Some uncomfortable thoughts do not leave me alone after taking a look
at the recent "Low-Level Core Data Tutorial" update on ADC.
Please take a look at the code at http://pastie.textmate.org/148159
It is clear that the code's intention is to instantiate the managed
object context only once... however it seems to me that a new instance
will be created every time the method is being called.
It this the case or there is something I should learn first and then
criticize? :)
I also noticed the following pattern used in the Docs for creating
instance members that are expensive to create:
begin method
if instance_member not nil
return instance_member
instantiate instance_member
return instance_member
end method
Why just not use:
begin method
if instance_member is nil
instantiate instance_member
return instance_member
end method
Thank you in advance.
Regards,
Yanko
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