Hi All,

i have to classes "Rating" and "TRRating". TRRating extends Rating. The Rating-Class is in one assembly and TRRating in another one.
I use the following mapping files:

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
<joined-subclass name="BLL.Stammdaten.BusinessEntities.TRRating, BLL.Stammdaten.BusinessEntities" table="TRRating" extends="BLL.Common.BusinessEntities.Rating, BLL.Common.BusinessEntities">
<key column="RatingID"/>
<property name="Description" column="Description" />
</joined-subclass>
</hibernate-mapping>

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" namespace="BLL.Common.BusinessEntities" assembly="BLL.Common.BusinessEntities">
<class name="Rating" table="Rating">
<id name="ID">
<column name="RatingID" sql-type="int32" not-null="true"/>
<generator class="identity" />
</id>
<property name="Transaction" >
<column name="TransactionName" not-null="true" />
</property>
<property name="Tranche" >
<column name="TrancheName" not-null="true" />
</property>
</class>
</hibernate-mapping>

I always get an error message "These classes extend unmapped classes...". If i copy all classes and bm.xml files in one assembly and of course correct the "assembly" attribute in the hbm.xml files all works fine.

How can i separate these classes in two assemblies? Is it possible?

Thanks in advance,
MIke

I thought there was a method for adding multiple assemblies in a <hibernate-configuration> section. There is definitely a method for adding named resources there (see here).

You could also configure programmatically, calling NHibernate.Cfg.Configuration.AddAssembly() for each assembly you need to load mappings from.

There is much more flexibility in configuration than the vanilla options that are documented.

Hi,

thanks for your reply. I tried all as you mentioned but nothing worked. If i seperate the 2 hbm files in diefferent dlls it doesn't work.

Thanks again,
Mike

By "it doesn't work," do you mean you're still getting the same "extending unmapped classes" exception? If so, does changing the order that the mappings are added help? Could you post the full output of the exception you are getting and your configuration code?

Merlin,

Check Hector's sample in this thread on how he gets multiple databases in one domain to work:

http://forum.hibernate.org/viewtopic.php?t=962161

The key is you need to map both your assemblies in the config. I've got this to work successfully for me. The concept will probably solve your inheritance problem.

LH

Hi All,

thanks fpr helping me, but i solved it now in a different way. I can't get work in seperate Files (Dlls), so i decided to make one DLL just for hosting the mapping files. This workaround works good for me.

Again, thanks for help.

Bye
Mike