}
private Scheduler() {
dataAccess = DataAccess.getInstance();
// appointmentData = new Vector();
dayToIdsMap = new OneToManyMap(Integer.class, String.class);
idToTitleMap = new Hashtable();
idToLastModifiedMap = new Hashtable();
idToDaysMap = new OneToManyMap(String.class, Integer.class);
deletedIndex = new DeletedIndex(DataAccess.APPOINTMENT, "");
alarmIndex = new AlarmIndex(getType());
logScreen = LogScreen.getInstance();
}