| Nested Class Summary | 
| static class | ObjectIdGenerators.IntSequenceGeneratorSimple sequence-number based generator, which uses basic Java
 ints (starting with value 1) as Object Identifiers. | 
| static class | ObjectIdGenerators.NoneAbstract marker class used to allow explicitly specifying
 that no generator is used; which also implies that no
 Object Id is to be included or used.
 | 
| static class | ObjectIdGenerators.PropertyGeneratorAbstract place-holder class which is used to denote case
 where Object Identifier to use comes from a POJO property
 (getter method or field).
 | 
| static class | ObjectIdGenerators.UUIDGeneratorImplementation that just uses
 UUIDs as reliably
 unique identifiers: downside is that resulting String is
 36 characters long. |