Hi
When reading the beer4all example, I remark that the use of OJB is done in
the service layer.
My question is:
Why there is no separated persistence layer that can be implemented by OJB
(or other)?
Can't we make, in OJB, an implementation of an interface like
public interface PersistenceService {
public Object getObjectById(int id);
public Collection getCollectionById(int id);
public Object getObjectByCriteria(Object criteria);
public Collection getCollectionByCriteria(Object criteria);
public Object getObjectForUpdate(Object criteria);
public void updateObject(Object o);
public void updateCollection(Collection o);
public void createObject(Object o);
}
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