NHibernate + Spring.NET lazy loading failed - no session

[lapagost]

I use Spring.NET AOP for transaction and session management with NHibernate. When user makes several requests too quick - lazy loading is failed with exception "no session or session was closed".

I use SpringSessionContext as CurrentSessionContext in NHibernate configuration

public class FluentSessionFactory : LocalSessionFactoryObject
{
    protected override ISessionFactory NewSessionFactory(Configuration config)
    {
        var conf = Fluently
            .Configure()
            .Database(
                MsSqlConfiguration
                    .MsSql2008
                    .ConnectionString(c => c.FromConnectionStringWithKey("MyConnection"))
                    // TODO: use ExposeConfiguration method
                    .CurrentSessionContext<SpringSessionContext>()
                )
            .Mappings(
                m => m.FluentMappings
                    .AddFromAssembly(this.GetType().Assembly)
            )
            .BuildSessionFactory();
        return conf;
    }
}

and OpenSessionInView module

<system.webServer>
    <validation validateIntegratedModeConfiguration="false"/>
    <modules runAllManagedModulesForAllRequests="true">
        <add name="OpenSessionInView"  type="Spring.Data.NHibernate.Support.OpenSessionInViewModule, Spring.Data.NHibernate31"/>
    </modules>
</system.webServer>

Application implements next workflow for getting entities from db: View -> Controller -> Manager -> Repository and same to other side. So session is created per request, transaction - per call to manager.

<object id="TransactionManager" type="Spring.Data.NHibernate.HibernateTransactionManager, Spring.Data.NHibernate31">
    <property name="DbProvider" ref="DbProvider"/>
    <property name="SessionFactory" ref="SessionFactory"/>
</object>

<tx:advice id="TxAdvice" transaction-manager="TransactionManager">
    <tx:attributes>
        <tx:method name="*"/>
    </tx:attributes>
</tx:advice>

<object id="Pointcut" type="Spring.Aop.Support.SdkRegularExpressionMethodPointcut, Spring.Aop">
    <property name="patterns">
        <list>
            <value>MyAppication.Managers.AccountManager</value>
            <value>MyAppication.Managers.CompanyManager</value>
        </list>
    </property>
</object>

<aop:config>
    <aop:advisor advice-ref="TxAdvice" pointcut-ref="Pointcut"/>
</aop:config>

What are possible reasons of such behaviour and how can I solve this problem(Not.LazyLoad() and NHibernateUtil.Initialize() are not acceptable variants in my context)?

[gusgorman]

So session is created per request, transaction - per call to manager.

What do you mean by this statement? You are using the OpenSessionInView module, which means that one hibernate session will be created for each http request.

Why are you setting SpringSessionContext in addition to using the OpenSessionViewViewModule? I'm pretty sure this is not necessary. I've certainly never had to do it.

Also, normally you would register the Spring.Context.Support.WebSupportModule http module to take care of setting the correct SessionContext for use with OpenSessionInView.

HTH,
Jordan.

[lapagost]

Thanks, it helped me a lot
Register Spring.Context.Support.WebSupportModule in modules, are solved my problem in a moment

What do you mean by this statement? You are using the OpenSessionInView module, which means that one hibernate session will be created for each http request.

Yes session is created on the http request, and declarative transaction is when call manager

[gusgorman]

Thanks, it helped me a lot
Register Spring.Context.Support.WebSupportModule in modules, are solved my problem in a moment

cool