ORM supporting mapping of generic types

Are there ORM tools for .NET supporting mapping of generic types?

I imagine at least 开发者_运维百科two possible mapping scenarios:

• Mapping of particular generic type instances
• Mapping of all possible generic instances (based on constraints & other mapped types).

I've been trying out Fluent NHibernate the last couple of months, and I'm pretty sure it can do that. We've certainly got generic lists as properties on objects. I'm not sure that I completely understand your second requirement. I've implement a generic repository that takes any type, and that works fine, if that's the sort of thing you are talking about?