Thanks, locking did it!
On Wed, Feb 17, 2010 at 11:11 AM, Paul Batum <paul.ba...@gmail.com> wrote:
> This isn't threadsafe:
>
> public ISessionFactory SessionFactory
> {
> get { return this.sessionFactory ?? (this.sessionFactory =
> this.ConfigurationGenerator.Generate().BuildSessionFactory()); }
> }
>
> I suggest you take a look at how sharp architecture does it:
>
> http://github.com/paulbatum/Sharp-Architecture/blob/master/src/SharpArch/SharpArch.Data/NHibernate/NHibernateInitializer.cs
>
>
> On Wed, Feb 17, 2010 at 8:03 PM, Schlaefisch
> <schlaefi...@googlemail.com>wrote:
>
>> We have a WebSessionManager implemented as singleton which creates the
>> sessionfactory, using fluent configuration, as needed.
>>
>> Here is the relevant code:
>>
>> public class WebSessionManager : ISessionManager
>> {
>> private static WebSessionManager sessionManager;
>> private ISessionFactory sessionFactory;
>> private IConfigurationGenerator configurationGenerator;
>>
>> public static WebSessionManager Instance
>> {
>> get { return sessionManager ?? (sessionManager = new
>> WebSessionManager()); }
>> }
>> public ISession Session
>> {
>> get
>> {
>> if (!
>> ManagedWebSessionContext.HasBind(HttpContext.Current,
>> this.SessionFactory))
>> {
>> ManagedWebSessionContext.Bind(HttpContext.Current,
>> this.SessionFactory.OpenSession());
>> }
>> return
>> this.SessionFactory.GetCurrentSession();
>> }
>> }
>> public ISessionFactory SessionFactory
>> {
>> get { return this.sessionFactory ?? (this.sessionFactory =
>> this.ConfigurationGenerator.Generate().BuildSessionFactory()); }
>> }
>> }
>>
>> public class ConfigurationGenerator : IConfigurationGenerator
>> {
>> private readonly string connectionString;
>> private readonly string sessionContext; // Here: "managed_web"
>>
>> public FluentConfiguration Generate()
>> {
>> FluentConfiguration config = Fluently.Configure()
>>
>> .Database(MsSqlConfiguration.MsSql2005.ConnectionString(this.connectionString)
>> .ShowSql().CurrentSessionContext(this.sessionContext))
>> .Mappings(m =>
>> m.FluentMappings.AddFromAssemblyOf<IConfigurationGenerator>());
>> return config;
>> }
>> }
>>
>>
>> On Feb 16, 4:58 pm, James Gregory <jagregory....@gmail.com> wrote:
>> > Where and how are you creating your session factory?
>> >
>> > On Tue, Feb 16, 2010 at 3:06 PM, Schlaefisch <
>> schlaefi...@googlemail.com>wrote:
>> >
>> > > Hi,
>> >
>> > > we're using fluent NHibernate within a SharePoint 2007 WebPart.
>> > > Everything works fine except for one problem:
>> >
>> > > If we reset the web server and 2 (or more) users try to browse the
>> > > WebPart, the session factory is created twice at the same time,
>> > > resulting in a null reference exception.
>> >
>> > > Is there any standard approach to prevent this?
>> >
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>> >
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>>
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