Hi

i am using Hibernate version 3

Here is my mapping file.


hibernate-mapping>
<class name="com.infozeal.tools.test.hibernate.Events" table="izdv.events">
<id name="id">
<generator class="increment"/>
</id>

<property name="eventName" column="EVENT_NAME"/>

<join table="IZDV.subevents">
<key column="id"/>
<property name="eName" column="ename"/>
</join>


<joined-subclass name="com.infozeal.tools.test.hibernate.ConferenceEvent" table="izdv.conf_event">
<key column="id"/>
<property name="seats"/>
</joined-subclass>

<joined-subclass name="com.infozeal.tools.test.hibernate.NetworkingEvent" table="izdv.net_event">
<key column="id"/>
<property name="foodName"/>
</joined-subclass>



</class>

</hibernate-mapping>

I am getting the following error
Caused by: org.xml.sax.SAXParseException: The content of element type "class" must match "(meta*,subselect?,cache?,synchronize*,comment?,(id|composite-id),discriminator?,natural-id?,(version|timestamp)?,(property|many-to-one|one-to-one|component|dynamic-component|properties|any|map|set|list|bag|idbag|array|primitive-array|query-list)*,((join*,subclass*)|joined-subclass*|union-subclass*),loader?,sql-insert?,sql-update?,sql-delete?,filter*)".
at weblogic.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:232)


My requirement is the fields which are in main class has to store in different tables when i save the subclass object.

It is working fine when i romove the <join>.

but for requirement i have to use join

Please help me.

thanks in advance

Hi,
I am having the identical problem.

My base class is split between two tables (in order to handle dynamic internationalization of some base class properties) and I have two subclasses which are represented as two separate tables in the database.

This seems like it would be a pretty comon and resonable case?

Is there any reason why the DTD prevents all coexistences of <join> and <joined-subclass> elements within the parent <class>?

Please help with this or with a workaround if known...

Thanks,
Eric

Ok,
Although you still cannot combine join and joined-sublass becasue it is prevented by the DTD, I have a workaround for this problem using <join> and <subclass>.

Basically, you combine the <join> and <subclass> with a discriminator, but "fake" the discriminator with a formula attribute.

So now, your hibernate mapping would look as follows:
(pay special attention to the <class> <discriminator> element and the discriminator attributes of the subclasses)