public Object getValueAt(int row, int col) {
        Movement movement = rekening.getBusinessObjects().get(row);
        if (col == 0) {
            return movement.getTransactionString();
        } else if (col == 1) {
            return Utils.toString(movement.getDate());
        } else if (col == 2) {
            if (movement.isDebit()) return movement.getAmount();
            return "";
        } else if (col == 3) {
            if (!movement.isDebit()) return movement.getAmount();
            return "";
        } else {
            return movement.getDescription();
        }
    }