Question

I have the following class (simplefied)

class Article : Content {

         [Field]
        [Association(PairTo = "RelatedArticles")]
        public EntitySet<Article> RelatedArticles { get; private set; }
    }

This is giving the following error on domain build, searched the forum, but I do not know what the problem is:

TestFixture failed: System.TypeLoadException : Access is denied: 'Xtensive.Storage.Internals.EntitySetItem2[NNet.Model.Content.Article.Article,NNet.Model.Content.Article.Article]'. at System.Reflection.Emit.TypeBuilder._TermCreateClass(Int32 handle, Module module) at System.Reflection.Emit.TypeBuilder.CreateTypeNoLock() at System.Reflection.Emit.TypeBuilder.CreateType() at Xtensive.Core.Reflection.TypeHelper.CreateInheritedDummyType(String typeName, Type inheritFrom, Boolean implementProtectedConstructorAccessor) at Xtensive.Storage.Building.Builders.ModelBuilder.<BuildAuxiliaryTypes>b__2(String _underlyingTypeName, Type _genericInstanceType) at Xtensive.Core.Threading.ThreadSafeDictionary2.GetValueT at Xtensive.Storage.Building.Builders.ModelBuilder.BuildAssociations() at Xtensive.Storage.Building.Builders.ModelBuilder.BuildModel() at Xtensive.Storage.Building.Builders.ModelBuilder.Run() at Xtensive.Storage.Building.Builders.DomainBuilder.BuildModel() at Xtensive.Storage.Building.Builders.DomainBuilder.BuildDomain(DomainConfiguration configuration, DomainBuilderConfiguration builderConfiguration) at Xtensive.Storage.Upgrade.UpgradingDomainBuilder.BuildStageDomain(UpgradeStage stage) at Xtensive.Storage.Upgrade.UpgradingDomainBuilder.Build(DomainConfiguration configuration) at Xtensive.Storage.Domain.Build(DomainConfiguration configuration) at NNet.Model.Test.AutoBuildTest.BuildDomain(DomainConfiguration configuration) in D:\Project\NNet-Web\NNet-Model-Test\AutoBuildTest.cs:line 37 at NNet.Model.Test.AutoBuildTest.TestFixtureSetUp() in D:\Project\NNet-Web\NNet-Model-Test\AutoBuildTest.cs:line 18

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Answer 1

stefmen wrote:

This should work!...

Make sure you have a [HierarchyRoot] identifier set on top of your class and a key field available.. This works for me!

My class looks like this (also simplified):

[HierarchyRoot]
public class Program
{
        /// <summary>
        /// The identifier of the entity.
        /// </summary>
        [Key, Field]
        public Int32 Id { get; private set; }

        /// <summary>
        /// Program belongs to program
        /// </summary>
        [Field]
        [Association("Program")]
        public EntitySet<Program> Program { get; private set; }
}

otto wrote:

The problem is that the container class is not public. It also hapened to me, here is the issue: http://code.google.com/p/dataobjectsdot ... ail?id=698

Alex (Xtensive) wrote:

Btw, I suspect the issue can't be fixed: the problem here is that we generate a descendant of EntitySetItem<tmaster, tslave=""> to describe the relationship, where either TMaster or TSlave is substituted to non-public type.

Obviously, this can't work, and I don't know if there are any possible workarounds.

stefmen wrote:

otto wrote:

Alex (Xtensive) wrote:

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