Polymorphic associations, annotations, <any>

stevelink · **Joined:** Thu Oct 27, 2005 7:39 pm **Posts:** 1

I'm using Hibernate 3.1 beta 3.

I need to map a polymorphic association very much like the table-per-concrete class Payment example in Chapter 8 of the Hibernate Reference Documentation.

The end result would be a

Code:

Payment payment = getPayment();

method that would return an instance of one of the concrete subclasses of Payment.

Using a mapping document I would use the <any> element. From the reference:

Code:

<any name="payment" meta-type="string" id-type="long">
  <meta-value value="CREDIT" class="CreditCardPayment"/>
  <meta-value value="CASH" class="CashPayment"/>
  <meta-value value="CHEQUE" class="ChequePayment"/>
  <column name="PAYMENT_CLASS"/>
  <column name="PAYMENT_ID"/>
</any>

Can you do this using annotations? What annotations would you use?

Thanks

emmanuel · **Posted:** Fri Oct 28, 2005 8:15 pm

Any is not supported through annotations