Henk, I think there's no way you can map the classes as layed out by you to your table setup. Given that I have recently added support for polymorphism, the only way to go about this decently is a setup where you have three tables, one for Persistent classes, one for Persons and one for Addresses, wich all common fields going into Persistent.
Werner -----Ursprüngliche Nachricht----- Von: Henk van Voorthuijsen [mailto:[EMAIL PROTECTED] Gesendet: Montag, 08. August 2005 15:45 An: [email protected] Betreff: [castor-user] [JDO] How to handle subclassing to common fields? Given the following set of classes (assume the appropriate getter/ setter methods): abstract class Persistent { String _entryName; Date _entryDate } class Person extends Persistent { String personId String _firstName; String _lastName; } class Address extends Persistent { String addressId String _city; String _street; } and the following tables: Person { personid entryname entrydate firstname lastname } Address { addrid entryname entrydate city street } How do I set up a mapping without having to specify the common fields for both classes? ------------------------------------------------- If you wish to unsubscribe from this list, please send an empty message to the following address: [EMAIL PROTECTED] ------------------------------------------------- ------------------------------------------------- If you wish to unsubscribe from this list, please send an empty message to the following address: [EMAIL PROTECTED] -------------------------------------------------
