D.1. Optional Features
The JDO specification includes a number of optional features that a JDO implementation may or may not implement. The supportedOptions() method on PersistenceManagerFactory can be used to determine the set of optional features that a JDO implementation supports. It returns a collection of strings, one for each supported feature.
Table D-1 provides a list of these strings.
| Optional Feature Name |
|---|
| javax.jdo.option.TransientTransactional |
| javax.jdo.option.NontransactionalRead |
| javax.jdo.option.NontransactionalWrite |
| javax.jdo.option.RetainValues |
| javax.jdo.option.Optimistic |
| javax.jdo.option.ApplicationIdentity |
| javax.jdo.option.DatastoreIdentity |
| javax.jdo.option.NonDurableIdentity |
| javax.jdo.option.ArrayList |
| javax.jdo.option.Hashtable |
| javax.jdo.option.HashMap |
| javax.jdo.option.LinkedList |
| javax.jdo.option.TreeMap |
| javax.jdo.option.TreeSet |
| javax.jdo.option.Vector |
| javax.jdo.option.Map |
| javax.jdo.option.List |
| javax.jdo.option.Array |
| javax.jdo.option.NullCollection |
| javax.jdo.option.ChangeApplicationIdentity |
| javax.jdo.query.JDOQL |
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