HasOne table-per-hierarchy abstract base

[mwpowellhtx]

Hello,

I've read a post on SO, but I have a case where I don't have a list so much as a HasOne.

One of my domain classes HasOne, but that one extends an abstract base class. I want the abstraction to persist to table-per-hierarchy in the usual sense, but how to persuade Fluent (and/or NHibernate) that it's okay to have the abstract base class.

In the meantime, I am receiving an exception building the configuration. AbstractScheduler is appropriately abstract, protected-parameterless-ctor, should not be instantiating it. However the mapping wants a public-parameterless-ctor.

Otherwise, I have mapped the derived schedulers in the usual SubclassMap sense with a discriminator value. Interested to know how to work past this sort of use case. I could set it up as a "default scheduler" in the base class, but that's not as interesting, and could lead to domain design confusion.

Thank you...

FluentNHibernate.Cfg.FluentConfigurationException was unhandled

  HResult=-2146233088

  Message=An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail.

  Source=FluentNHibernate

  StackTrace:

       at FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory()

       at Football.Data.Repository.Hibernate.SessionFactoryConfigurator.CreateFactory() in i:\Source\Kingdom Software\Football\Simulator\Football.Data\Repository\Hibernate\SessionFactoryConfigurator.cs:line 66

       at Football.Repository.SessionFactoryConfiguratorBase`1.get_Factory() in i:\Source\Kingdom Software\Football\Simulator\Football.Repository\SessionFactoryConfiguratorBase.cs:line 37

       at Football.Data.RepositoryExtensionMethods.GetRepositoryForSession[TConfigurator,TRepository](TConfigurator configurator, Func`2 getter, IInterceptor sessionLocalInterceptor) in i:\Source\Kingdom Software\Football\Simulator\Football.Data\Extensions\RepositoryExtensionMethods.cs:line 26

       at Football.Migrator.Program.Main(String[] args) in i:\Source\Kingdom Software\Football\Simulator\Football.Migrator\Program.cs:line 52

       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)

       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)

       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()

       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)

       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

       at System.Threading.ThreadHelper.ThreadStart()

  InnerException: FluentNHibernate.Cfg.FluentConfigurationException

       HResult=-2146233088

       Message=An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail.

       Source=FluentNHibernate

       StackTrace:

            at FluentNHibernate.Cfg.FluentConfiguration.BuildConfiguration()

            at FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory()

       InnerException: FluentNHibernate.MissingConstructorException

            HResult=-2146233088

            Message='Football.Data.Mappings.Schedulers.AbstractSchedulerMap, Football.Data, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' is missing a parameterless constructor.

            Source=FluentNHibernate

            StackTrace:

                 at FluentNHibernate.Utils.Extensions.InstantiateUsingParameterlessConstructor(Type type)

                 at FluentNHibernate.PersistenceModel.Add(Type type)

                 at FluentNHibernate.Utils.CollectionExtensions.Each[T](IEnumerable`1 enumerable, Action`1 each)

                 at FluentNHibernate.PersistenceModel.AddMappingsFromSource(ITypeSource source)

                 at FluentNHibernate.PersistenceModel.AddMappingsFromAssembly(Assembly assembly)

                 at FluentNHibernate.Cfg.FluentMappingsContainer.Apply(PersistenceModel model)

                 at FluentNHibernate.Cfg.MappingConfiguration.Apply(Configuration cfg)

                 at FluentNHibernate.Cfg.FluentConfiguration.BuildConfiguration()

            InnerException: 

[Gleb Chermennov]

I see your point.

Can you post your code - classes, mappings and Fluent configuration - somewhere on the web (like gist/github) or just email them to me in case your project isn't opensource?

I'll investigate.

суббота, 30 августа 2014 г., 1:41:53 UTC+4 пользователь mwpowellhtx написал:

[Michael Powell]

On Sat, Aug 30, 2014 at 6:37 AM, Gleb Chermennov
<thebitt...@gmail.com> wrote:
> I see your point.
> Can you post your code - classes, mappings and Fluent configuration -
> somewhere on the web (like gist/github) or just email them to me in case
> your project isn't opensource?
> I'll investigate.

Thanks for being available.

Upon closer examination, I overlooked a confusion between the ClassMap
and the SubclassMap. ClassMap for the abstract domain class was still
itself abstract. Should just be a concrete class with public
parameterless ctor itself. SubclassMap I extended from an abstract
base class serving the abstract domain model. The domain model itself
is fine as well.

Thank ye!

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[Michael Powell]

On Sat, Aug 30, 2014 at 7:30 AM, Michael Powell <mwpow...@gmail.com> wrote:
> On Sat, Aug 30, 2014 at 6:37 AM, Gleb Chermennov
> <thebitt...@gmail.com> wrote:
>> I see your point.
>> Can you post your code - classes, mappings and Fluent configuration -
>> somewhere on the web (like gist/github) or just email them to me in case
>> your project isn't opensource?
>> I'll investigate.
>
> Thanks for being available.
>
> Upon closer examination, I overlooked a confusion between the ClassMap
> and the SubclassMap. ClassMap for the abstract domain class was still
> itself abstract. Should just be a concrete class with public
> parameterless ctor itself. SubclassMap I extended from an abstract
> base class serving the abstract domain model. The domain model itself
> is fine as well.
>
> Thank ye!

I may have spoken too soon.

Every Schedule HasOne associated Scheduler, AbstractScheduler,
extending into SeasonScheduler, TournamentScheduler, and so on.

In the Schedule mapping:

HasOne(x => x.Scheduler)
.PropertyRef(r => r.Schedule)
.Cascade.All();

Unless Fluent and/or NHibernate is having a problem with the
abstraction, I fail to see how it does not find the property Schedule
referring to the Scheduler's parent.

Another possibility, is PropertyRef necessary? Or use References in
the child on the other side of the HasOne (or HasMany)?

Thank ye...

InnerException: NHibernate.MappingException
HResult=-2146232832
Message=property-ref [Parent] not found on entity
[Football.Models.Schedulers.AbstractScheduler]
Source=NHibernate
StackTrace:
at NHibernate.Mapping.PersistentClass.GetReferencedProperty(String
propertyPath)
at NHibernate.Cfg.Configuration.SecondPassCompile()
at NHibernate.Cfg.Configuration.BuildSessionFactory()
at FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory()
InnerException: NHibernate.MappingException
HResult=-2146232832
Message=property [Parent] not found on entity
[Football.Models.Schedulers.AbstractScheduler]
Source=NHibernate
StackTrace:
at
NHibernate.Mapping.PersistentClass.GetRecursiveProperty(String
propertyPath, IEnumerable`1 iter)
at
NHibernate.Mapping.PersistentClass.GetReferencedProperty(String
propertyPath)
InnerException:

[mustafa bal]

can you help me i have error Nhibernate that 

An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail.

but my project working my local machine but not host what can i do that problem 

[Gleb Chermennov]

​What does InnerException say? What are you trying to do?​

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--

Yours faithfully, 

Gleb

[mustafa bal]

İ fixed vs. Cache my local database connection, when i clear cache it is working. 

28 Nisan 2015 Salı tarihinde, Gleb Chermennov <thebitt...@gmail.com> yazdı:

[Gleb Chermennov]

Sorry, I don't quite understand what you're talking about.