Die alte Leier: Zirkulaere Referenzen, aber warum nicht so: ...?

[freimatz]

Machen wir auch so. Zum Beispiel:

Delphi-Quellcode:

  IViewValueBase = interface(IViewBase)
    ['{3EF209C2-81FD-44C6-B231-328BA2FAABE5}']
    procedure RegisterHostValidation(const p_ValidationMethod: THostPropertyValidationDelegate);
    procedure ClearRegisteredHostValidation();
  end;

  IViewValueBase<T> = interface(IViewValueBase)
    function GetValue(): T;
    property Value: T read GetValue;
  end;

  IViewValue<T> = interface(IViewValueBase<T>)
    procedure SetValue(const p_Value: T);
    property Value: T read GetValue write SetValue;
  end;

  IViewValueBoolean = interface(IViewValue<Boolean>)
    ['{13871F02-44C4-40C4-B2D7-4A592D2A86D3}']
  end;

  IViewValueString = interface(IViewValue<String>)
    ['{1322615D-4628-4398-806D-E4E34BCF3BCE}']
  end;

  IViewValueInteger = interface(IViewValue<Integer>)
    ['{42524A7C-8BAF-41B4-90D0-77D8C457EDC9}']
  end;

  IViewValueDouble = interface(IViewValue<Double>)
    ['{016EE305-1856-4CD5-ACC2-9021F52DED63}']
  end;
  ...

Die implementierenden Klassen sind dann analog dazu.