return appointmentManagement.getIdList(appointmentManagement.getOverlappedAppointments(user, startTime, endTime, state));
}
public boolean addAppointment(String username, Date startTime, Date endTime, String title, String notes,
AppointmentState status, Boolean visible) {
User u = userManagement.getUser(username);
return appointmentManagement.addAppointment(u, startTime, endTime, title, notes, status, visible);
}