nl: gets the entity manager factory . concode_field_sep Database instance concode_elem_sep EntityManagerFactory emf concode_field_sep void initInstance concode_elem_sep T getElementById concode_elem_sep List<T> getAll concode_elem_sep T create concode_elem_sep T update concode_elem_sep void delete concode_elem_sep void closeConnection
code: EntityManagerFactory function ( ) { return emf ; }