traininfo/provider/ProviderFactory.java

package dk.thoerup.traininfo.provider;


public class ProviderFactory {
        private static DepartureProvider departureProvider = null;
        private static StationProvider stationProvider = null;
        private static TimetableProvider timetableProvider = null;
        
        private static final boolean DEBUG = false;
        
        public static DepartureProvider getDepartureProvider() {
                if (departureProvider == null) {
                        if (!DEBUG) {
                                departureProvider = new XmlDepartureProvider();
                        } else {
                                departureProvider = new DebugProvider();
                        }
                }
                
                return departureProvider;
        }
        
        public static StationProvider getStationProvider() {
                if (stationProvider == null) {
                        if (!DEBUG) {
                                stationProvider = new XmlStationProvider();
                        } else {
                                stationProvider = new DebugProvider();
                        }
                }
                
                return stationProvider;
        }
        
        public static TimetableProvider getTimetableProvider() {
                if (timetableProvider == null) {
                        if (!DEBUG) {
                                timetableProvider = new XmlTimetableProvider();
                        } else {
                                timetableProvider = new DebugProvider();
                        }
                }
                return timetableProvider;
        }
}
1	package dk.thoerup.traininfo.provider;
2
3
4	public class ProviderFactory {
5	private static DepartureProvider departureProvider = null;
6	private static StationProvider stationProvider = null;
7	private static TimetableProvider timetableProvider = null;
8
9	private static final boolean DEBUG = false;
10
11	public static DepartureProvider getDepartureProvider() {
12	if (departureProvider == null) {
13	if (!DEBUG) {
14	departureProvider = new XmlDepartureProvider();
15	} else {
16	departureProvider = new DebugProvider();
17	}
18	}
19
20	return departureProvider;
21	}
22
23	public static StationProvider getStationProvider() {
24	if (stationProvider == null) {
25	if (!DEBUG) {
26	stationProvider = new XmlStationProvider();
27	} else {
28	stationProvider = new DebugProvider();
29	}
30	}
31
32	return stationProvider;
33	}
34
35	public static TimetableProvider getTimetableProvider() {
36	if (timetableProvider == null) {
37	if (!DEBUG) {
38	timetableProvider = new XmlTimetableProvider();
39	} else {
40	timetableProvider = new DebugProvider();
41	}
42	}
43	return timetableProvider;
44	}
45	}