Hi,

This may sound trivial and it probably is, but I'm having problems accessing data belonging to subclasses when querying an abstract class.

For example, if I do:

session.createCriteria( ContentVO.class ).list();

It returns instances of ContentVO and its subclasses. So I save a vector of ContentVOs like this from the resultset:

ContentVOSet conVOSet = new ContentVOSet();
...
ContentVO conVO =
(ContentVO) resultset.get(i);

conVOSet.addContent( conVO );

I can access all the data for ContentVO, however if I have let's say LinkVO as the subclass then how do I access it? Do I need to reformulate my query or is there any way I can get access to the subclass?

Thanks.


Mapping documents:

<hibernate-mapping package...>

<class name="ContentVO" table="content_table"
dynamic-update="true" optimistic-lock="version">
...

<joined-subclass name="LinkVO" table="link_table">
<key column="link_id"/>
<property name="contentIDFK" column="content_id_fk" not-null="true"/>
</joined-subclass>

</class>
</hibernate-mapping package>


Hibernate version: 3.1

Name and version of the database you are using:
MYSQL 4.1

Sorry to be impatient, but would anyone have any clues about the problem above?

Thanks!

I'm probably going to annoy quite a bit of people by bring this post up front, but can anyone please tell what am I missing here?

I am just clueless at this point :(

I'm probably going to annoy quite a bit of people by bring this post up front, but can anyone please tell what am I missing here?

I am just clueless at this point :(

For a Discussion and Strategies of the Inheritance Mapping look into :

http://www.hibernate.org/hib_docs/v3/reference/en/html/inheritance.html

Maybe that helps.
Christoph