@Override
    public List<Vector> getAppeals(String matricNum) {
        studentEntity = lookupStudent(matricNum);
        List<Vector> appeals = new ArrayList();
        for (AppealEntity a : studentEntity.getAppeals()) {
            Vector app = new Vector();
            app.add(a.getTime());
            app.add(a.getStatus());
            app.add(a.getContent());
            app.add(a.getComment());
            appeals.add(app);
        }
        return appeals;
    }