nobody had the same problem?
On 9 Apr., 09:49, Stefan Steinegger <stefan....@bluewin.ch> wrote:
> We are trying to lock an instance in the database to make sure that is
> does not change. But only the inherited class is locked, so we are not
> locking the base class.
>
> pseudo code:
>
> class Base { string A { get; set; }}
>
> class Inherited { string B { get; set; }}
>
> Transaction 1:
> Inherited myEntity = GetEntity();
> session.Lock(myEntity); // doesn't lock Base
> if (myEntity.A == "X")
> {
> // myEntiy.A can still change during the transaction
>
> }
>
> Transaction 2:
> Base myBase = GetEntity();
> myBase.A = "X"; // doesn't lock Inherited
> Commit;
>
> Transaction 1 locks in the table Inherited, Transaction 2 locks in the
> table Base. So they don't wait until the (actually same) entity is
> unlocked.
>
> It would be nice if NHibernate would lock the whole hierarchy with
> Lock, not only the Inherited. Optionally, by argument or
> configuration, it could also lock the whole hierarchy when updating
> (this will cause more DB communication, why it needs to be optional).
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