Hi all


I implement the inheritance with table per-subclass method but I don't know how to express it in the mapping files.

If I use the following mapping file, during initialisation I got exception - net.sf.hibernate.MappingException: Resource: erp/dataaccesslayer/hibernate/dataobjects/MetalString.hbm.xml not found

But if I add a MetalString.hbm.xml file, I got exception - net.sf.hibernate.MappingException: duplicate import: MetalString.

How to fix this problem?? Is there a special mapping file for subclass?? Are there complete examples of the implementation of table per-subclass?



Hibernate version: 2.1.8

Mapping documents:

<class
name="erp.dataaccesslayer.hibernate.dataobjects.Fitting"
table="Fittings"
polymorphism="implicit"
>
<id
name="id"
type="java.lang.String"
column="id"
>
<generator class="assigned" />
</id>

<property
name="name"
type="java.lang.String"
column="name"
not-null="true"
length="50"
/>

<joined-subclass name="erp.dataaccesslayer.hibernate.dataobjects.MetalString" table="MetalString" >
<key column="id"/>

<property
name="weight"
type="double"
column="weight"
not-null="true"
/>

</joined-subclass>

</class>

Could it be that hibernate.cfg.xml has entry
<mapping resource="com/sourcelabs/demo/webapp/kernel/Company.hbm.xml"/>

And it should not be there.

See the last entry for the post...

http://forum.hibernate.org/viewtopic.ph ... highlight=

there is an example there with separate files. Hope it helps.