Realm - Swift store a protocol type

问题

I have the following structure:

class Entity : Object {
    dynamic var Id = 0
    dynamic var Title = ""
    dynamic var Subtitle = ""
    var atttribute : MyProtocol?

}

Is there a way of storing something in attribute? Today is returning nil. If I add dynamic it returns the error:

Property cannot be marked dynamic because its type cannot be represented in Objective-C

Is there any way to store properties that conform to a Protocol as that?

回答1:

No. Realm properties are monomorphic, and Realm needs to know what the concrete object type that will be linked to is at initialization time.

来源：https://stackoverflow.com/questions/32250084/realm-swift-store-a-protocol-type