Using Validator and Envers together

[Jochen Jonckheere]

Hi,

When I try to use NHibernate.Envers and NHibernate.Validator in the same project I get the following exception.

Mesage: Object reference not set to an instance of an object.

StackTrace:

   at NHibernate.Validator.Engine.SystemTypeExtensions.ShouldNeedValidation(Type clazz)

   at NHibernate.Validator.Engine.ValidatorEngine.GetClassValidator(Type entityType)

   at NHibernate.Validator.Engine.ValidatorEngine.AddValidator(Type entityType, IValidatableSubElementsInspector inspector)

   at NHibernate.Validator.Event.ValidatePreInsertEventListener.Initialize(Configuration cfg)

   at NHibernate.Event.EventListeners.InitializeListeners(Configuration cfg, Object[] list) in d:\CSharp\NH\NH\nhibernate\src\NHibernate\Event\EventListeners.cs:line 618

   at NHibernate.Event.EventListeners.InitializeListeners(Configuration cfg) in d:\CSharp\NH\NH\nhibernate\src\NHibernate\Event\EventListeners.cs:line 592

   at NHibernate.Cfg.Configuration.GetInitializedEventListeners() in d:\CSharp\NH\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs:line 1189

   at NHibernate.Cfg.Configuration.BuildSessionFactory() in d:\CSharp\NH\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs:line 1246

   at ....Installers.NHibernateInstaller.SessionFactoryFactory(INHibernateConfigurator nHibernateConfigurator, INHibernateEnversConfigurator nHibernateEnversConfigurator) in ...\Installers\NHibernateInstaller.cs:line 81

Here's the part of the code that throws the exception:

// Build the NHibernate Configuration

var nHibernateConfiguration = nHibernateConfigurator.Configure();

// Initialize NHibernate Validator

nHibernateConfiguration.Initialize();

// Initialize NHibernate Envers

nHibernateConfiguration.IntegrateWithEnvers(nHibernateEnversConfigurator.Configure());

// Build the SessionFactory 
_factory = nHibernateConfiguration.BuildSessionFactory();

The exception occurs on the last line. Has somebody succesfully combined Envers and Validator?

Regards,

Jochen

[Roger Kratz]

Don’t know much about NHV and guessing out loud here...

 

conf.IntegrateWithEnvers(...) will add persistent classes to the configuration object. Maybe NHV don’t like modifications of the conf object after it has been initialized? What happens if you run Initialize after IntegrateWithEnvers?

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[Fabio Maulo]

Roger,

Probably is a bug in NHV events.

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Fabio Maulo

[Jochen Jonckheere]

Roger,

If I do IntegrateWithEnvers first than I also have an exception, but with a different Stacktrace:

Mesage: Object reference not set to an instance of an object.

StackTrace:

   at NHibernate.Validator.Cfg.ValidatorInitializer.ApplyValidatorToDDL(PersistentClass persistentClass, ValidatorEngine ve)

   at NHibernate.Validator.Cfg.ValidatorInitializer.Initialize(Configuration cfg, ValidatorEngine ve)

   at NHibernate.Validator.Cfg.ValidatorInitializer.Initialize(Configuration cfg)

   at ....NHibernateInstaller.SessionFactoryFactory(INHibernateConfigurator nHibernateConfigurator, INHibernateEnversConfigurator nHibernateEnversConfigurator) in ...\Installers\NHibernateInstaller.cs:line 83

Jochen

[Fabio Maulo]

The integration with Envers have to be the last integration always.

Jochen

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[Jochen Jonckheere]

So it's a bug.

Where is the best place to file this bug so that it can be fixed?

[Fabio Maulo]

The NH JIRA 

Go to http://nhforge.org/ and click on "Issue tracker"

On Tue, May 3, 2011 at 10:59 AM, Jochen Jonckheere <jochen.j...@jxk.be> wrote:

So it's a bug.

Where is the best place to file this bug so that it can be fixed?

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