In this case both (User.Profile is IProfileA) and (User.Profile is IProfileB) always be true. And he still can't decide whether the User.Profile is instance of ProfileA or ProfileB, am I right?
On Mar 21, 2:07 pm, Germán Schuager <[email protected]> wrote: > Specifying IProfileProxy you can cast any lazy-loaded Profile to either > IProfileA or IProfileB and then work against the interface. > Is that what you were asking for? > > On Fri, Mar 20, 2009 at 9:39 PM, kello <[email protected]> wrote: > > > I don't see how an interface that derives from two other interfaces > > would help in doing different things depending on the type? For > > example > > > if (Profile is ProfileA) DoA(); else if(Profile is ProfileB) DoB(); > > > Or when using the Visitor pattern.... Am I missing something? > > > /Jonas > > > On Mar 20, 10:35 pm, Germán Schuager <[email protected]> wrote: > > > I've worked out a similar situation using interfaces like this: > > > > interface IProfileA > > > > class ProfileA : IProfileA > > > > interface IProfileB > > > > class ProfileB : IProfileB > > > > interface IProfileProxy : IProfileA, IProfileB > > > > then specifying proxy="Namespace.IProfileProxy" in the base class mapping > > > and working against the interfaces. > > > > On Thu, Mar 19, 2009 at 2:02 PM, RoyWagner <[email protected]> wrote: > > > > > This is the situation: > > > > > I have an abstract Profile class and 2 derived classes let’s call the > > > > ProfileA and ProfileB. > > > > Then mapping structure that I use is table per class hierarchy. > > > > > I also have a user class that have reference to a Profile: > > > > > Public class User > > > > { > > > > public virtual Profile Profile { get; set; } > > > > } > > > > > I use lazy load for the Profile property. > > > > > The problem is that when try to cast the User.Profile to one of the > > > > derived classes(PofileA or ProfileB) I get an error that I can’t cast > > > > ProfileProxy16982… to ProfileA. > > > > NHibernate create ProfileProxy object in order to support the lazy > > > > load and that prevent me from casting the Profile object. > > > > > The only solution I have right now is to cancel the lazy load.- Hide > > quoted text - > > > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "nhusers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nhusers?hl=en -~----------~----~----~----~------~----~------~--~---
