Hibernate 3.x

The below example is from the docs. Would it be possible to keep the mapping of CreditCardPayment and ChecquePayment in their own separate mapping files? How would I have to update the below mapping?

Thanks,

<class name="Payment" table="PAYMENT">
<id name="id" type="long" column="PAYMENT_ID">
<generator class="native"/>
</id>
<property name="amount" column="AMOUNT"/>
...
<joined-subclass name="CreditCardPayment" table="CREDIT_PAYMENT">
<key column="PAYMENT_ID"/>
<property name="creditCardType" column="CCTYPE"/>
...
</joined-subclass>
<joined-subclass name="CashPayment" table="CASH_PAYMENT">
<key column="PAYMENT_ID"/>
...
</joined-subclass>
<joined-subclass name="ChequePayment" table="CHEQUE_PAYMENT">
<key column="PAYMENT_ID"/>
...
</joined-subclass>
</class>

Do this:

Payment.hbm.xml:


CreditCardPayment.hbm.xml


CashPayment.hbm.xml


ChequePayment.hbm.xml


See section 5.1.14 of the reference manual.

Works well, except that for <joined-subclass>, I cannot specify "discriminator-value". The doc seems to say it is ok, but DTD does not seem to allow that....

SEVERE: Error parsing XML: XML InputStream(9) Attribute "discriminator-value" must be declared for element type "joined-subclass".

You don't need a discriminator value since you have a separate table for each class. The discriminator is needed only when more than one class is stored in the same table.