4 |
public class ProviderFactory { |
public class ProviderFactory { |
5 |
private static DepartureProvider departureProvider = null; |
private static DepartureProvider departureProvider = null; |
6 |
private static StationProvider stationProvider = null; |
private static StationProvider stationProvider = null; |
7 |
|
private static TimetableProvider timetableProvider = null; |
8 |
|
|
9 |
public static DepartureProvider getDepartureProvider() { |
public static DepartureProvider getDepartureProvider() { |
10 |
if (departureProvider == null) { |
if (departureProvider == null) { |
22 |
|
|
23 |
return stationProvider; |
return stationProvider; |
24 |
} |
} |
25 |
|
|
26 |
|
public static TimetableProvider getTimetableProvider() { |
27 |
|
if (timetableProvider == null) { |
28 |
|
timetableProvider = new XmlTimetableProvider(); |
29 |
|
} |
30 |
|
return timetableProvider; |
31 |
|
} |
32 |
} |
} |