this.setEnrolmentBeginDayDate(enrolmentBeginDay.getTime());
if (enrolmentBeginDay.getTime() != null) { this.setEnrolmentBeginDayDate(enrolmentBeginDay.getTime()); } else { this.setEnrolmentBeginDayDate(null); }
    public void setEnrolmentBeginDay(Calendar enrolmentBeginDay) {        this.setEnrolmentBeginDayDate(enrolmentBeginDay.getTime());    }