Asynchronous queries in a web app, using NHibernate

Question

In a web application, the Session is only available in the current thread.

Does anyone have any tips for executing queries through NHibernate in a new asynchronous thread?

For example, how could I make something like this work:

public void Page_Load()
{
    ThreadPool.QueueUserWorkItem(state => FooBarRepository.Save(new FooBar()));
}

Answer 1

Sessions are not thread-safe. IOW you'll run into issues sooner or later if you create a session on one thread and use it from another. Create a new session on your background thread and close it before your background thread finishes.

Answer 2

How about:

public void Page_Load()
{
    ThreadPool.QueueUserWorkItem(state => NHibernateSessionFactory.GetSession().Save(new FooBar()));
}