Objective-C : (private / public properties) making a property readonly for outside class calls and readwrite for self calls

Question

Would you know a way to make a property readonly for outside calls and readwrite for inside calls ?

I\'ve read times ago somthing that seemed like

In the .h

Answer 1

In your .h:

@property(nonatomic, retain, readonly) NSDate* theDate;

In your .m:

@interface TheClassName()
@property(nonatomic, retain, readwrite) NSDate* theDate;
@end