my first guess is that you never unbind the session from the context.
i would that there. if that doesn't work I would then browser the
ICurrentSessionContext implementations to see which is best suited for
your scenario.
finally, there is also the issue of managing the scope of the session.
I have worked with NH in 3 contexts.
Web
Service Bus
ThreadPool.QueueWorkItem()
with the web i open a transaction and session when a request begins
and commit/rollback and dispose of the session when the request ends.
combined with the post-redirect-get model for processing command
quests I haven't had an issue yet.
with a service bus it's similar. open a transaction and session when a
message is received and commit/rollback and dispose of the session
when processing the message has completed.
thread pool is a little trickier to explain. the code may be more
useful
ThreadPool.QueueWorkItem(item => {
using(var session = factory.OpenSession())
using(var tx = session.BeginTransaction())
{
CurrentSessionContext.Bind(session);
item();
tx.Commit();
CurrentSessionContext.Unbind(factory);
}
});
On Nov 12, 12:36 pm, Andyk <[email protected]> wrote:
> Hi,
> can anyone tell me which sessioncontext should be used in a Wcf
> environment.
> Currently I have a web application calling a WCF service, hosted in
> IIS. The WCF service does all the work and uses NHibernate.
>
> I am using sessioncontext in a static class to manage nhibernate
> session like this:
>
> public static ISession GetCurrentSession()
> {
> if (!CurrentSessionContext.HasBind(SessionFactory))
> {
> CurrentSessionContext.Bind(SessionFactory.OpenSession
> ());
> }
> return SessionFactory.GetCurrentSession();
> }
>
> and in the config I have:
> <property name="current_session_context_class">call</property>
>
> When multiple users access the system, exceptions start being thrown,
> such as "Session is closed". Which gives me the impression the session
> is being shared, and isnt unique to each request.
>
> Currently, for each WCF function, Im calling:
> NhibernateHelper.BeginTransaction();
> // Do work
> NHibernateHelper.CommitTransaction();
> NHibernateHelper.DisposeSession();
>
> There's something Im doing wrong, but Im racking my brains trying to
> find the solution.
>
> Any response gratefully appreciated.
>
> Andy
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