JavaFx TableCellEditor - javafx

Question

I have JavaFx TableView and I permit user to enter some data in the table and retrieve what a user entered in the table for this reason I create also ArrayList of TextFields and use the following code but the size of the ArrayList should be 3 in my case but I found the size 7, what's wrong?
Edit the full code here
import java.util.ArrayList;
import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Scene;
import javafx.scene.control.TableCell;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.stage.Stage;
public class TestTableView extends Application
{
private final TableView <ProductOpeningBalance> tableProductOpeningBalance = new TableView();
private final Scene scene = new Scene(tableProductOpeningBalance, 400, 200);
private final TableColumn productQuantity = new TableColumn("Product Quantity");
private final ObservableList <ProductOpeningBalance> data = FXCollections.observableArrayList(
new ProductOpeningBalance("0"),
new ProductOpeningBalance("0"));
private final ArrayList <TextField> txtProductQuantity = new ArrayList <> ();
#Override
public void start(Stage stage)
{
productQuantity.impl_setReorderable(false);
productQuantity.setEditable(true);
productQuantity.setCellValueFactory(new PropertyValueFactory("ProductQuantity"));
productQuantity.setCellFactory(column -> new TableCell()
{
#Override
public void startEdit()
{
if(!isEmpty())
{
super.startEdit();
createTextField();
setText(null);
setGraphic(txtProductQuantity.get(txtProductQuantity.size() - 1));
txtProductQuantity.get(txtProductQuantity.size() - 1).selectAll();
}
}
#Override
public void cancelEdit()
{
super.cancelEdit();
setText((String) getItem());
setGraphic(null);
}
public void updateItem(String item, boolean empty)
{
super.updateItem(item, empty);
if(empty)
{
setText(null);
setGraphic(null);
}
else
{
if(isEditing())
{
if(txtProductQuantity.get(txtProductQuantity.size() - 1) != null)
{
txtProductQuantity.get(txtProductQuantity.size() - 1).setText(getString());
}
setText(null);
setGraphic(txtProductQuantity.get(txtProductQuantity.size() - 1));
}
else
{
setText(getString());
setGraphic(null);
}
}
}
private void createTextField()
{
txtProductQuantity.add(new TextField(getString()));
txtProductQuantity.get(txtProductQuantity.size() - 1).
setMinWidth(this.getWidth() - this.getGraphicTextGap() * 2);
txtProductQuantity.get(txtProductQuantity.size() - 1).setAlignment(Pos.BASELINE_RIGHT);
txtProductQuantity.get(txtProductQuantity.size() - 1).focusedProperty().
addListener((ObservableValue<? extends Boolean> arg0, Boolean arg1, Boolean arg2) ->
{
if(!arg2)
{
commitEdit(txtProductQuantity.get(txtProductQuantity.size() - 1).getText());
}
});
}
private String getString()
{
return getItem() == null ? "" : getItem().toString();
}
});
tableProductOpeningBalance.setEditable(true);
tableProductOpeningBalance.getColumns().addAll(productQuantity);
tableProductOpeningBalance.setItems(data);
stage.setScene(scene);
stage.show();
}
public class ProductOpeningBalance
{
private final SimpleStringProperty ProductQuantity;
public ProductOpeningBalance(String productQuantity)
{
this.ProductQuantity = new SimpleStringProperty(productQuantity);
}
public void setProductQuantity(String productQuantity)
{
ProductQuantity.set(productQuantity);
}
public String getProductQuantity()
{
return ProductQuantity.get();
}
}
}
Solution finally:
this code help me to find what I need after spent a lot of time in searching and trying a lot of methods
purchaseItemPrice.setCellFactory(column -> new TableCell()
{
#Override
public void startEdit()
{
if(!isEmpty())
{
if(txtPurchaseItemPrice.size() < data.size() && getGraphic() == null)
{
super.startEdit();
txtPurchaseItemPrice.add(new TextField());
txtPurchaseItemPrice.get(txtPurchaseItemPrice.size() - 1).setAlignment(Pos.BASELINE_RIGHT);
setGraphic(txtPurchaseItemPrice.get(txtPurchaseItemPrice.size() - 1));
}
}
}
public void updateItem(String item, boolean empty)
{
super.updateItem(item, empty);
if(!empty)
{
if(isEditing())
{
setGraphic(txtPurchaseItemPrice.get(txtPurchaseItemPrice.size() - 1));
}
}
}
});