I've changed my mapping so that it doesn't refer to PostBase at all anymore. I just have a mapping file for Post and one for Comment, then because they both inherit from PostBase, the table columns are automatically mapped to the ones of PostBase.
I think that was the solution, no ? On 19 mar, 16:06, graphicsxp <[email protected]> wrote: > Is this new to nhibernate 2.0 ? I can't find anything about that in my > nhibernate 1.2 book .... > > There is a reference to <joined-subclass> but that implies using the > Table-per-subclass strategy, which I don't want to do. > > Do you have an example on how to use extends and <join> > > Thanks > > On 19 mar, 15:34, Fabio Maulo <[email protected]> wrote: > > > you should use extends and <join> > > > 2009/3/19 graphicsxp <[email protected]> > > > > Hello, > > > > I have an exception Duplicate class/entity mapping Comp.PostBase. > > > > This is because I have two mapping files for two different tables but > > > they both map to two classes that share the same base class : > > > > <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"> > > > <class name="Comp.PostBase, Comp" table="Comment" lazy="true" > > > discriminator-value="POST_BASE" abstract="true"> > > > <id name="Id" column="PostID"> > > > <generator class="native"/> > > > </id> > > > > <discriminator column="Type" type="string" /> > > > > <property name="DateCreated" type="date" column="DateCreated" /> > > > > <subclass name="Comp.CommentPost, Comp" discriminator- > > > value="COMMENT"> > > > <property name="ParentId" type="Comp.CommentPost, Comp" > > > column="ParentId" /> > > > <many-to-one name="thePost" cascade="none" column="PostID" not- > > > null="true" /> > > > </subclass> > > > > </class> > > > </hibernate-mapping> > > > > AND > > > > <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"> > > > <class name="Comp.PostBase, Comp" table="Post" lazy="true" > > > discriminator-value="POST_BASE" abstract="true"> > > > <id name="Id" column="PostID"> > > > <generator class="native"/> > > > </id> > > > > <discriminator column="Type" type="string" /> > > > > <property name="DateCreated" type="date" column="DateCreated" /> > > > > <!-- Description of a Post entity --> > > > <subclass name="Comp.Post, Comp" discriminator-value="POST"> > > > <property name="Headline" type="string" length="500" > > > column="Headline" /> > > > <property name="URL" type="string" length="1000" column="URL" /> > > > <property name="AnalystComment" type="string" > > > column="AnalystComment" /> > > > <bag name="Comments" inverse="true" cascade="all" lazy="true"> > > > <key column="CommentID" /> > > > <one-to-many class="Comp.CommentPost, Comp" /> > > > </bag> > > > </subclass> > > > > </class> > > > </hibernate-mapping> > > > > That seems to be a big issue for me. How can I do that ? > > > -- > > Fabio Maulo --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "nhusers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nhusers?hl=en -~----------~----~----~----~------~----~------~--~---
