class DBService implements RolesProvider {

    boolean isNumOfDaysReduced(Integer oldNumberOfDays, Integer newNumberOfDays) {
        if (newNumberOfDays == null || newNumberOfDays <= 0) {
            return false;
        }
        if (oldNumberOfDays == null || oldNumberOfDays <= 0) {
            return true;
        }
        return newNumberOfDays < oldNumberOfDays;
    }

    public  DBService(ObjectStore store, AuditLogger auditLogger, ZMSConfig zmsConfig, AuditReferenceValidator auditReferenceValidator);

}