public void checkData(boolean doAdditionalChecks) throws EJbsObject {
super.checkData(doAdditionalChecks);
if (doAdditionalChecks) {
if ((this.getFirstName()==null) || (this.getFirstName().trim().equals("")))
throw new EJbsAddress(EJbsAddress.ET_FIRSTNAME);
if ((this.getPhone()==null) || (this.getPhone().trim().equals("")))
throw new EJbsAddress(EJbsAddress.ET_PHONE);
/*
if (this.getBirthday()==null)
throw new EJbsEmployee(EJbsEmployee.ET_BIRTHDAY);
*/
}