For those reasons the ITransaction shouldn't be a merely "ADO.NETtransaction wrapper" (or so near to it).session.BeginTransaction should know which is the environment, it should know if it should run in a nested DTC transaction ... and so on. The user only need to know that i must call session.BeginTransaction, NH should to the right thing.
2009/3/23 Michael Teper <[email protected]> > Fabio, Ayende, > > Another thing to consider is the nested transaction scenario like this: > > using (var scopeOuter = new TransactionScope()) > { > // load / change some object(s) > > using (var innerScope = new TransactionScope()) > { > try > { > // load / change something else > innerScope.complete(); > } > catch { // do something } > } > > outerScope.complete(); > } > > This may look silly but if the inner transaction is encapsulated in a > different class, this is a very plausible scenario. Wherever NH keeps track > of the current transaction scope, it needs to be aware of potential for > nesting. > > Thanks! > -Michael > > > ------------------------------ > *From:* [email protected] [ > [email protected]] On Behalf Of Fabio Maulo [ > [email protected]] > *Sent:* Monday, March 23, 2009 9:45 AM > *To:* [email protected] > *Subject:* [nhibernate-development] Re: More DTC issues > > > > 2009/3/23 Ayende Rahien <[email protected]> > >> The problem is that usually the DTC is opened by a lower level component, >> and my code has no control over it. More than that, I usually don't have >> control over NH's code as well. >> >> It goes like this: >> >> 1/ low level infrastructure - dtc >> 2/ high level infarstruture - nh >> 3/ business code - my stuff >> > > and then > 3 -end > 2- end > 1-end > > If 2 don't know about 1, 2 should use session.BeginTransaction and > session.Transaction.Commit(). > > >> >> I don't want to be aware of all of this issues, I just want to make this >> work. >> So explicitly flushing is an option that I would generally be against. >> >> Making NH's transaction equal to the dtc is also not a good option, >> because the use of the DTC is to manage several resources, not just NH. >> > > You know... I never said dtc=nhTx > What I would like to avoid is If(DTC) {something} else {somethingelse} > inside NH-Core. > > -- > Fabio Maulo > -- Fabio Maulo
