Difference between self.ivar and ivar?

Question

aclass.h

@interface aClass : NSObject {
    NSString *name;
}

@property (nonatomic, retain) IBOutlet NSString *name;

@end

---

aclass.m         


        

Answer 1

It's real a memory management, firt the property grammar is real setter and getter method, when use self.xxx = ?, it could call setter method, the object retain cout +1, name can not be release, however if name = foo is nothing about property grammar.

setter method example:

-(void)setObj:(ClassX*) value 
{  
         if (obj != value) 
         { 
                   [obj release]; 
                   obj = [value retain]; 
         } 
}