xxx.Fields.State
Which is an EntityStateWnum with the following possible values:
New Entity is new. It can be empty or filled, but is not saved (yet) to the persistent storage.
**Fetched **Entity is filled with its data from the persistent storage. It can be changed since the fetch.
**OutOfSync **Entity is out of sync with its physical entity in the persistent storage. An Entity is marked OutOfSync when a succesful Save action is performed. An Entity will re-fetch itself when in the state OutOfSync when a property is read or Refetch() is called. The state will then be set to Fetched.
**Deleted **Adapter specific. If an entity has the state Deleted, it is no longer available in the persistent storage.