import 'person.dart';
import 'person_data_access_map.dart';

class Business {
  final PersonDataAccessMap _backend;

  Business(this._backend);

  void addPerson(Person p) => _backend.store(p);

  bool existsPersonId(int id) => _backend.retrieve(id) != null;

  List<Person> getAllPersons() => _backend.retrieveAll();
}