Question about factory method object lifetimes in Objective-C/Cocoa (to retain or not…)

Question

From reading the memory management docs in the SDK, I gathered that factory methods (static constructor methods) would typically be retaining the object for me and adding it

Answer 1

As soon as you add your object to the array, there is an implicit call to retain for this object, which means once added to the array you can release it from the source, and when you'll call the remove method from the array there will also be an implicit call to release.