The following tutorial should help you.

http://downside.ch/blog/?page_id=4

http://downside.ch/hibernate/hibernatetutorial-1.4.pdf

I think the tutorial covers what you want to do.

Regards,
Abe


On 8/16/07, Ding, Qin <[EMAIL PROTECTED]> wrote:
>
>  Abc:
>
>
>
> Yest I mean Hibernate.
>
>
>
> abstract class textType{
>
>   protected String name;
>
> }
>
>
>
> class Note extends TextType{
>
>
>
> }
>
>
>
> Class Discription extends TextType{
>
> }
>
>
>
> Class comment extends TextType{
>
> }
>
>
>
> Table TextType
>
> Id (sequence)
>
> Name (discriminator) varchar(8)
>
> Example data:
>
> 1, note
>
> 2, comment
>
> 3, description
>
>
>
> In Text Object
>
> Text{
>
>    Private TextType type;
>
>    String value;
>
> }
>
>
>
> When I save Text to Text table, it has FK to TextType table.  If I passed
> in the type as Note, the text will have 1 (Note) as its type. If I pass in
> type as Description, it will have 3 (Description) as its type.
>
>
>
> How do I decorate the TextType using xdoclet?  Thank you for helping.
>
>
>  ------------------------------
>
> *From:* Developer Abe [mailto:[EMAIL PROTECTED]
> *Sent:* Thursday, August 16, 2007 2:47 PM
> *To:* users@appfuse.dev.java.net
> *Subject:* Re: [appfuse-user] Help please
>
>
>
> Qin,
>
>
>
> I am not sure what part of your app you want to create a hierarchy
> relationship in.  I am guessing you mean Hibernate.
>
>
>
> Can you describe the problem you are trying to solve in more depth.
>
>
>
> Regards,
>
> Abe
>
>
>
>
>
> On 8/14/07, *Ding, Qin* <[EMAIL PROTECTED]> wrote:
>
>
> I use Appfuse 1.9.4/JSF/DB2.  I try to build a hierarchy relationship by
> adding xdoclet attributes to the class and its subclasses. Can anyone of
> the appfuse developers show me a good example or point me to a good
> document, tutorials...?
>
> Thank you very much.
>
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