When calling PersistenceManager.getObjectById() with a SingleFieldIdentity, there seems to be no way of avoiding the following
(if the implementation decides to do so):
"It is an implementation decision whether to access the data store, if required to determine the exact class. This will be the case of inheritance, where multiple <code>PersistenceCapable</code> classes share the same ObjectId class."
Now when I know for sure that the targetClassName of the given SingleFieldIdentity already denotes the correct class for the given id, how can I avoid that additional roundtrip to the database for finding the exact class?
It would be useful to have a way of specifying a SingleFieldIdentity to be for the exact class specified. This could be done by addition of methods
void setExact(boolean flag);