Thanks for the suggestion. I've been researching a bit and I think that a simpler aproach would be to flatten my class hierarchy and dont use component mappings. I'm thinking about putting the members of ICustomComponent right under BaseClass and delegate calls to an object whose lifecycle is not managed by NH... then I should be able to use table-per-subclass.
On Wed, Dec 17, 2008 at 9:13 AM, Ayende Rahien <[email protected]> wrote: > take a look at <many-to-any> > > > On Wed, Dec 17, 2008 at 6:13 AM, Germán Schuager <[email protected]>wrote: > >> Hi, >> I have a base class with an abstract component represented by an >> interface: >> >> public abstract class BaseClass >> { >> public abstract ICustomComponent CustomComponent { get; } >> } >> >> >> Then, I have several subclasses that provide their specific concrete >> intances (to achieve diferent behaviors) using this abstract property; note >> that it could be null: >> >> public class FirstClass >> { >> public override ICustomComponent CustomComponent { >> get { >> if (customComponent == null) customComponent = new >> FirstConcreteCustomComponent(); >> return customComponent; >> } >> } >> } >> >> public class SecondClass >> { >> public override ICustomComponent CustomComponent { >> get { >> if (customComponent == null) customComponent = new >> SecondConcreteCustomComponent(); >> return customComponent; >> } >> } >> } >> >> public class ThirdClass >> { >> public override ICustomComponent CustomComponent { >> get { return null; } >> } >> } >> >> >> I would like to map this set of classes using table-per-subclass >> inheritance mapping. >> Is it possible? How can I do it? >> >> I have wrote some mappings that let me persist a FirstClass entity, but >> when I try to get it from the DB it yells: >> "Cannot instantiate abstract class or interface: ICustomComponent" >> >> Regards, >> >> >> Germán Schuager >> blog.schuager.com >> >> >> >> >> > > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
