Exception: AttributeIdentifierAttribute -- NHibernate 1.2

Marc Looren · **Joined:** Tue Sep 26, 2006 8:08 am **Posts:** 3

Hi,

NHibernate version: 1.2

My current project is based on NHibernate 1.0.2. I tried to port it to NHibernate 1.2 but an error occurs when generating mapping files.

The following code segment I have:

Code:

[Id(0, Access = "nosetter.camelcase-underscore", Name = "Id", Column = "Id", TypeType = typeof(Guid), UnsavedValue = "{00000000-0000-000-0000-000000000000}")]
[Generator(1, Class = "guid.comb")]
public Guid Id
{
   get { return _id; }
   private set { _id = value; }
}

This works fine in 1.0.2. In NHibernate 1.2 I get the following error when generating the mapping files:

Can not find a AttributeIdentifierAttribute with the name '00000000-0000-0000-0000-000000000000' in the class Country (and its base classes)

What is wrong with my code, or is something wrong in the mapping generation tool?

Marc

KPixel · **Posted:** Thu Sep 28, 2006 10:59 am

The problem is that there is a new feature in NHibernate.Mapping.Attributes which sees {00000000-0000-000-0000-000000000000} as an "identifier" (refer to the doc).

Anyway, the workaround is to change the way it recognize identifier. Eg:
// Add this before using NHibernate.Mapping.Attributes
HbmWriter.StartQuote = "{{";
HbmWriter.EndQuote = "}}";

I will change it in to something else (before the final release), but I don't know what yet... Suggestions?