public DataBaseService()
{
// get race events from file. Each line represents a race event
_raceEvents = getRaceEvents();
// create our repositories from the race events.
// This is a reasonable way to do this since we don't have a structured database
Races = FactoryRaces(_raceEvents);
Pilots = FactoryPilots(_raceEvents);
PilotRaceStats = FactoryRacePilotStats(_raceEvents, Races.GetAll(), Pilots.GetAll());
}