Hibernate version:
1.2 beta 2


I have used Hibernate in J2EE for the past year. I am trying to use NHibernate in a .Net 1.1 project and I am having problems trying to control the serialization of a property using the [NotSerialized] (I have tries 3 different spellings) attribute in the C# class. This is easy in the Java version. I keep getting a property Unresolved error...

Has anyone used the [NotSerialized] attribute for NHibernate?

FYI, this problem was cause because of a limitation in the mapping - Class A contains Class B which contains a collection of Class C. This works until you try to make a copy of Class B and C - which caused a NHibernate error (which corrupts the DB) - I think the nhibernate documentation calls this a collection element and is NOT supported. Therefore, I changed the design to use a weak reference between Class A and Class B and have Class manually 'Get any request for Class B from the DB' (simulating lazy loading). This all works until I try to make a copy of Class B (for user editing). The local instance variable in Class A of Class B causes a mapping problem even though I have the NotSerialized attribute associated with the property.

[NotSerialized]
Class B <- for the property definition

My guess is the Beta code is looking at the object and not respecting the [NotSerialized] attribute and creating the mapping code within the NHibernate system, and that mapping code cannot find the Get/Set routines for the property (which should not be there) causing the “Unresolved Error”.

Any help would be appreciated.

Mapping documents:

Code between sessionFactory.openSession() and session.close():

Full stack trace of any exception that occurs:

Name and version of the database you are using:
SQL Server 2000 SP4
The generated SQL (show_sql=true):

Debug level Hibernate log excerpt:


Problems with Session and transaction handling?

Read this: http://hibernate.org/42.html

What is the connection between [NotSerialized] and NHibernate?
From your post, it seems that you consider this attribute something that NHibernate should use to not persist the assoication.
Am I correct?

Thank you for the reply. Here is a link to MSDN that I am referencing concerning serialization:

http://msdn2.microsoft.com/en-us/library/axwwbcs6.aspx

Clearly I am doing something wrong in my use of NHibernate, but I was hoping that the [NonSerialized] attribute would work similar to the Java transient variable attribute which tell Hibernate NOT to map or save the that property (on save/flush).

Is there a way to tell NHibernate to ignore a property or variable from being mapped?

Thanks again for the help.

Serialization and mapping are two different concepts.
If you don't want to map a property, just don't include it in the mapping file