DB inheritance mapping

[ipazmino]

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

[maxandersen]

there is no inheritance info in the database and we don't have any reveng.xml construct for doing this.

Use mapping files if you want full control.