How to add data into MFXTableView from a database?

[arbitroy]

I have been trying to populate a MFXTableView using this method but this error comes up "Cannot invoke "java.util.function.Function.apply(Object)" because the return value of "io.github.palexdev.materialfx.controls.MFXTableColumn.getRowCellFactory()" is null"

List<productsModel> products = new ArrayList<>();
            ObservableList productList = null;
            while (resultSet.next()) {
                String pname = resultSet.getString("pname");
                String price = String.valueOf(resultSet.getInt("price"));
                products.add(new productsModel(pname, price));
                productList = FXCollections.observableArrayList(products);
            }
            MFXTableColumn<productsModel> productName = new MFXTableColumn<>("Product Name", Comparator.comparing(productsModel::getPname));
            productName.setRowCellFactory(name -> new `MFXTableRowCell<>(productsModel::getPname));
tb_product.setItems(productList);
tb_product.getTableColumns().addAll(productName);

The model looks like this:

    String pname;
    String price;
    public productsModel(String pname, String price) {

        this.pname = pname;
        this.price = price;
    }
public String getPname() {
        return pname;
    }

    public void setPname(String pname) {
        this.pname = pname;
    }

    public String getPrice() {
        return price;
    }
    public void setPrice(String price) {
        this.price = price;
    }

}

Your guidance will be much appreciated

[arbitroy]

So the issue was passing an object to the column instead of a string. The function was actually provided in the demo.

List<productsModel> products= new ArrayList<>();
            while(resultSet.next()){
                String pName = resultSet.getString("pname");
                String price = String.valueOf(resultSet.getInt("price"));
                products.add(new productsModel(pName,price));
            }
            ObservableList<productsModel> p = FXCollections.observableArrayList(products);
            MFXTableColumn<productsModel> nameColumn = new MFXTableColumn<>("Product Name", true, Comparator.comparing(productsModel::getPname));
            MFXTableColumn<productsModel> priceColumn = new MFXTableColumn<>("price", true, Comparator.comparing(productsModel::getPrice));
            nameColumn.setRowCellFactory(product -> new MFXTableRowCell<>(productsModel::getPname));
            priceColumn.setRowCellFactory(product -> new MFXTableRowCell<>(productsModel::getPrice));
            tb_product.getTableColumns().addAll(nameColumn,priceColumn);
            tb_product.getFilters().addAll(
                    new StringFilter<>("Product Name", productsModel::getPname),
                    new StringFilter<>("Price", productsModel::getPrice)
            );
            tb_product.setItems(p);