Dependent value classes

[Sunder]

�Dependent value classes were introduced in the EJB 2.0 spec. I would like to know if it’s a good idea to use serialized java Beans mapped to the database columns. That way, one does not need to change the EJB for database changes. All database Changes can be reflected in the java bean. Of course, the primary key will not be a part of this bean. Are there any drawbacks in doing this??   Sunder