Re: Regarding MVC design pattern
Re: Regarding MVC design pattern
- Subject: Re: Regarding MVC design pattern
- From: Thomas Davie <email@hidden>
- Date: Thu, 20 May 2010 15:40:12 +0100
On 20 May 2010, at 15:24, mmalc Crawford wrote:
>
> On May 19, 2010, at 4:38 am, Sherm Pendley wrote:
>
>> If you set the ivars directly, as above, the synthesized setters will
>> NOT be called. For that to happen, you need to use dot-syntax, like
>> this:
>>
>> - (void) dealloc {
>> self.beginButton = nil;
>> self.endButton = nil;
>> // etc...
>> [super dealloc];
>> }
>>
> You do not *need* to use the dot syntax to invoke the accessors synthesised for a property. You can also use the corresponding accessor method using [] syntax, e.g.
>
> [self setBeginButton:nil];
>
> However, you should typically not invoke accessor methods in init or dealloc methods.
Can I ask why you shouldn't use them in init? It makes a lot of sense to not use them in alloc/dealloc, but I'm not using them in init... after all, what if I replace the ivar with a derived property from another object? Why should I have to recode my init?
Bob_______________________________________________
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