[nhibernate-issues] [NHJIRA] Commented: (NH-2739) Can't get ByCode mapping to produce not nullable varbinary(max)

[Michael T. (JIRA) <nh...@gm...>]

    [ http://216.121.112.228/browse/NH-2739?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=21195#action_21195 ] 

Michael Teper commented on NH-2739:
-----------------------------------

I tried adding the following bit to specify the type:

	map.Property(x => x.Data, m => m.Type<BinaryBlobType>());

but got the following error:

[MissingMethodException: No parameterless constructor defined for this object.]
   System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) +0
   System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache) +98
   System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache) +241
   System.Activator.CreateInstance(Type type, Boolean nonPublic) +69
   System.Activator.CreateInstance(Type type) +6
   NHibernate.Bytecode.ActivatorObjectsFactory.CreateInstance(Type type) +39
   NHibernate.Type.TypeFactory.HeuristicType(String typeName, IDictionary`2 parameters, Nullable`1 length) +574

[MappingException: Could not instantiate IType BinaryBlobType: System.MissingMethodException: No parameterless constructor defined for this object.
   at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)
   at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache)
   at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache)
   at System.Activator.CreateInstance(Type type, Boolean nonPublic)
   at System.Activator.CreateInstance(Type type)
   at NHibernate.Bytecode.ActivatorObjectsFactory.CreateInstance(Type type)
   at NHibernate.Type.TypeFactory.HeuristicType(String typeName, IDictionary`2 parameters, Nullable`1 length)]
   NHibernate.Type.TypeFactory.HeuristicType(String typeName, IDictionary`2 parameters, Nullable`1 length) +868
   NHibernate.Type.TypeFactory.HeuristicType(String typeName, IDictionary`2 parameters) +78
   NHibernate.Mapping.SimpleValue.GetHeuristicType() +544
   NHibernate.Mapping.SimpleValue.get_Type() +163
   NHibernate.Mapping.SimpleValue.IsValid(IMapping mapping) +57
   NHibernate.Mapping.Property.IsValid(IMapping mapping) +56
   NHibernate.Mapping.PersistentClass.Validate(IMapping mapping) +139
   NHibernate.Mapping.RootClass.Validate(IMapping mapping) +45
   NHibernate.Cfg.Configuration.ValidateEntities() +240
   NHibernate.Cfg.Configuration.Validate() +30
   NHibernate.Cfg.Configuration.BuildSessionFactory() +64


> Can't get ByCode mapping to produce not nullable varbinary(max)
> ---------------------------------------------------------------
>
>                 Key: NH-2739
>                 URL: http://216.121.112.228/browse/NH-2739
>             Project:  NHibernate
>          Issue Type: Bug
>          Components: Mapping by-code
>    Affects Versions: 3.2.0Beta1
>            Reporter: Michael Teper
>            Priority: Major
>
> Trying to map the following class:
> public class MyData
> {
>   public byte[] Data { get; set; }
> }
> to 'varbinary(max) (not null)' field in SQL Server 2008.
> mapper.Class<MyData>(map =>
>                	{
>                		map.Property(x => x.Data, m => m.Length(int.MaxValue));
> 			map.Property(x => x.Data, m => m.NotNullable(true));
>                	});
> produces 'image(null)'

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