2010/10/1 Phil <[email protected]>

> //All business rules for the Bar collection are
> //encapsulated on the BarCollection object
> [UniqueMembers(Message = "There are duplicate Foos")]
> [SomeOtherValidator]
>

You MUST to use a SET in your domain model. If you want to add ui validation
logic, you should work this on presenters/viewmodels.

BTW; if you write your own collections, you must create your Persistent**
version of your collection. NHibernate use his own set of collection for
lazy loading support, but you can inherit from them and create your own set
of Persistent versions. I did it once for support the WPF collection
ObservableCollection<T>.

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