Copyright ©
2002 HYWY Software Corporation
Gopalan Suresh Raj
Chief Architect, HYWY
Software
JDO Persistent Object Model
•The JDO Model distinguishes
between Persistence-Capable, Persistence-Aware, and
Transient classes
•First Class Objects (FCOs) have a JDO identity
•Second
Class Objects (SCOs) do not have a JDO identity