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copied!<p>Your NH Session is a Unit of Work already <a href="http://nhforge.org/wikis/patternsandpractices/nhibernate-and-the-unit-of-work-pattern.aspx" rel="nofollow">http://nhforge.org/wikis/patternsandpractices/nhibernate-and-the-unit-of-work-pattern.aspx</a></p> <p>So I'm not sure why you would ever need to abstract this out any further. (if anyone reading this answer know's why I would be happy to hear, I've honestly never heard of any reason why you would need to...)</p> <p>I would implement a simple Session Per Request. I don't know how you would do that with Windsor since I've never used it, but with It's rather simple with StructureMap.</p> <p>I wrap the structuremap factory to hold my session factory and inject the session into the repositories as required.</p> <pre><code> public static class IoC { static IoC() { ObjectFactory.Initialize(x => { x.UseDefaultStructureMapConfigFile = false; // NHibernate ISessionFactory x.ForSingletonOf<ISessionFactory>() .Use(new SessionFactoryManager().CreateSessionFactory()); // NHibernate ISession x.For().HybridHttpOrThreadLocalScoped() .Use(s => s.GetInstance<ISessionFactory>().OpenSession()); x.Scan(s => s.AssembliesFromApplicationBaseDirectory()); }); ObjectFactory.AssertConfigurationIsValid(); } public static T Resolve<T>() { return ObjectFactory.GetInstance<T>(); } public static void ReleaseAndDisposeAllHttpScopedObjects() { ObjectFactory.ReleaseAndDisposeAllHttpScopedObjects(); } } </code></pre> <p>In the global.asax file on Request_End I call the ReleaseAndDisposeAllHttpScopedObjects() method.</p> <pre><code> protected void Application_EndRequest(object sender, EventArgs e) { IoC.ReleaseAndDisposeAllHttpScopedObjects(); } </code></pre> <p>So the session is opened when I call my first repository, and when the request is ended it's disposed of. The repositories have a constructor which takes ISession and assigns it to a property. Then I just resolve the repo like:</p> <pre><code>var productRepository = IoC.Resolve<IProductRepository>(); </code></pre> <p>Hope that helps. There are many other ways of doing it, this is what works for me.</p>

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