Re: Confused with Chapter 7 in Hillegass' book (2nd ed.)
Re: Confused with Chapter 7 in Hillegass' book (2nd ed.)
- Subject: Re: Confused with Chapter 7 in Hillegass' book (2nd ed.)
- From: Dan Hancu <email@hidden>
- Date: Wed, 28 Jul 2004 16:35:13 -0700
On Jul 28, 2004, at 3:52 PM, Steven Harms wrote:
I'm assuming you have the book (2nd ed).
I'm particularly baffled about the mention of setEmployees: under the
heading "adding undo to raiseman". Why is this function here? I
think it's so that the NSArrayController can talk to MyDocument -- but
what calls it? I understand the retain and release etc. -- but when
is this called, by what, is this part of the default behavior of
NSArrayController?
setEmployees is used in a later chapter, and I believe
NSArrayController uses it in an automagical fashion.
p. 146 - How does the insert: message equate into the just explained
'insertObject:inEmployeesAtIndex" ?
Anyone able to explain these bits?
I am completely baffled by this line, several people have left comments
on the book's webpage, but there hasn't been a response from Aaron yet.
It does mention that they will be called automatically, and keep in
mind that if you change the function name to xinsertObject:
inEmployeesAtIndex: it will not work.
Thanks,
Steven
I would love to hear a conclusive answer though.
Dan Hancu
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