Hi, I have a table that holds general fields, representing a generalization, and two holding specific fields, as they are specializations. Mapping these entitites I wish to have the following class hierarchy abstract class Person { | private String firstname; | private String lastname; | //getters & setters | } | | class User extends Person { | private String username; | private String password; | //getters & setters | } | | class Visitor extends Person { | private Date visitDate; | //getters & setters | } To achieve this, I need to put the following directives in the mapping descriptor for hibernate. <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> | </class> How can I modify the reveng.xml file, so that i can have this configuration done when I generate the entities with the Hibernate Code Generator from JBossTools? Thanks in advance IP View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4186750#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...