The persistence APIs include operations and object state APIs.
Operations APIs
Mobile business object operations are performed on an MBO instance. Operations in the model that are marked as create, update, or delete (CUD) operations create non-static instances of operations in the generated client-side objects.
Object State APIs
The object state APIs provide methods for returning information about the state of an entity in an application.
Mobile and Local Business Objects
A business object can be either local or mobile. A local business object is a client only object, and is represented by the LocalBusinessObject interface. A mobile business object can be synchronized with the SAP Mobile Server, and is represented by the MobileBusinessObject interface.
Generated Package Database APIs
The generated package database APIs include methods that exist in each generated package database.