This is an annoying matter in our dev-list.
In some moment, for various reasons since NH 2.0 (cache, lazy-extra and so
on), we said: each persistent action should be involved in a NH's
transaction.
For me that's all: each persistent action should be involved in a NH's
transaction.
So
[TransactionScope]
[PersistentConversation]
public void MyServiceMethod()
{
daoA.Save(something);
daoB.Save(something);
}
All is by AOP so the "PersistentConversation", who manage nh-sessions and
nh-transactions, does not know if it is working inside a DTC or not.
2009/10/15 Mike Nichols <[email protected]>
>
> Hi Fabio
> That does work and I thank you for your guidance.
> I read this in ch 10 on transactions:"If the connection is enlisted
> with a distributed transaction, operations performed by the ISession
> are atomically part of the wider distributed transaction." so I
> thought the session would enlist itself in a dtc transaction if one is
> already present. This enlistment must be a part of the call in
> session.BeginTransaction() ?
>
>
>
>
> On Oct 15, 11:57 am, Fabio Maulo <[email protected]> wrote:
> > What happen if you begin a NH's transaction (repeat a transaction of NH)
> > after open each session ?
> > Try to execute each save inside the corresponding NH's transaction and
> let
> > me know what happen.
> >
> > 2009/10/15 Mike Nichols <[email protected]>
> >
> >
> >
> >
> >
> > > This test fails. Within a single transaction, there may be multiple
> > > sessions trying to persist to different databases but I am not sure
> > > this is possible.
> > > I lifted the ForceEscalationToDistributedTx from NH DTC tests and it
> > > enlists itself to rollback the transaction.
> > > Is what I am trying to do here possible?
> > > [Observation]
> > > public void should_not_succeed_in_persisting()
> > > {
> >
> > > var tx = new TransactionScope();
> > > var s1 = SessionFactory1.OpenSession();
> > > var s2 = SessionFactory2.OpenSession();
> > > s1.FlushMode = FlushMode.Commit;
> > > s2.FlushMode = FlushMode.Commit;
> > > s1.Save(new MyEntity1()
> > > {
> > > Agency = "ADOT",
> > > });
> > > s2.Save(new MyEntity2()
> > > {
> > > Agency = "ADOT",
> > > });
> > > new ForceEscalationToDistributedTx(true);
> >
> > > tx.Complete();
> > > try
> > > {
> >
> > > tx.Dispose();
> >
> > > throw new InvalidOperationException("Expected tx
> abort");
> > > }
> > > catch (TransactionAbortedException)
> > > {
> > > //expected
> > > }
> > > s1.Dispose();
> > > s2.Dispose();
> > > using(var s=SessionFactory1.OpenSession())
> > > {
> > > var pm = s.CreateCriteria(typeof
> > > (StandardSpecificationsPublicationPM)).List();
> > > Assert.Equal(0, pm.Count);
> > > }
> > > }
> > > ////////////////////////////END TEST////////////////////////////
> >
> > --
> > Fabio Maulo
> >
>
--
Fabio Maulo
--~--~---------~--~----~------------~-------~--~----~
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
-~----------~----~----~----~------~----~------~--~---
