Re: sending a message from an initializer method

2011-01-14 Thread Andreas Grosam
On Jan 14, 2011, at 1:29 AM, Richard Somers wrote: > I often will do something like this. > > - (id)init > { > self = [super init]; > if (self) { > [self prepare...]; > [self prepare...]; > [self prepare...]; > // etc... > } > return self; > } > >

Re: sending a message from an initializer method

2011-01-13 Thread Richard Somers
On Jan 12, 2011, at 4:41 AM, Luc Van Bogaert wrote: I would like to implement that algorithm in a seperate method, instead of writing it directly in the initializer. Is that OK, and could I then message "self" in the initializer like: - (id) init { self = [super init]; if (s

Re: sending a message from an initializer method

2011-01-13 Thread Erik Buck
Fair enough. On Jan 13, 2011, at 1:19 PM, Uli Kusterer wrote: > On Jan 13, 2011, at 1:27 AM, Erik Buck wrote: >> Class or instance method makes no difference in this case with regard to >> polymorphism. > > It does. He's only passing the two instance variables to the class method. > And, being

Re: sending a message from an initializer method

2011-01-13 Thread Uli Kusterer
On Jan 13, 2011, at 1:27 AM, Erik Buck wrote: > Class or instance method makes no difference in this case with regard to > polymorphism. It does. He's only passing the two instance variables to the class method. And, being a class method, "self" is the class, not the half-initialized instance.

Re: sending a message from an initializer method

2011-01-12 Thread Erik Buck
Class or instance method makes no difference in this case with regard to polymorphism. On Jan 12, 2011, at 4:51 PM, Gordon Apple wrote: > What I would do use a class method and pass the two arrays as parameters. > > > On 1/12/11 2:03 PM, "cocoa-dev-requ...@lists.apple.com" > wrote: > >> Yes,

Re: sending a message from an initializer method

2011-01-12 Thread Gordon Apple
What I would do use a class method and pass the two arrays as parameters. On 1/12/11 2:03 PM, "cocoa-dev-requ...@lists.apple.com" wrote: > Yes, you can, but... don't forget that in -computeVar3... self is not fully > initialized. If you have all control on self it can be without problems, but >

Re: sending a message from an initializer method

2011-01-12 Thread Frédéric Testuz
Yes, you can, but... don't forget that in -computeVar3... self is not fully initialized. If you have all control on self it can be without problems, but Objective-C is an OO language. Consider this : - Your class is ClassA with it's init method. - Then you have ClassB, subclass of ClassA. Class

Re: sending a message from an initializer method

2011-01-12 Thread Phil Hystad
You can do the following, in your implementation file create a local procedure and then call it from your init method. I did not bother copying your arguments but you define them in the regular way. -(void)myCalculation { // do the calculation } - (id) init { if ( self = [super init]

sending a message from an initializer method

2011-01-12 Thread Luc Van Bogaert
Hi, I have a question about how to design a initializer mehod. I have defined a class with three instance variables. Two of them are arrays and their value can be initialized straightforward in the initializer method, but the value of the third instance variable is the result of a complex alg