Basic outline for a TableView based JavaFX property editor

TableViewPropertyEditor.java

import java.lang.reflect.*;
import java.util.Arrays;
import java.util.logging.*;
import javafx.application.Application;
import javafx.beans.property.*;
import javafx.beans.value.*;
import javafx.collections.*;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.control.TableColumn.CellEditEvent;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.*;
import javafx.stage.Stage;
import javafx.util.Callback;
 
// click in the value column (a couple of times) to edit the value in the column.
// property editors are defined only for String and Boolean properties.
// change focus to something else to commit the edit.
public class TableViewPropertyEditor extends Application {
  public static void main(String[] args) { launch(args); }
  @Override public void start(Stage stage) {
    final Person aPerson = new Person("Fred", true);
    final Label currentObjectValue = new Label(aPerson.toString()); 
 
    TableView<NamedProperty> table = new TableView();
    table.setEditable(true);    
    
    table.setItems(createNamedProperties(aPerson));
    
    TableColumn<NamedProperty, String> nameCol = new TableColumn("Name");
    nameCol.setCellValueFactory(new PropertyValueFactory<NamedProperty, String>("name"));
 
    TableColumn<NamedProperty, Object> valueCol = new TableColumn("Value");
    valueCol.setCellValueFactory(new PropertyValueFactory<NamedProperty, Object>("value"));
    valueCol.setCellFactory(new Callback<TableColumn<NamedProperty, Object>, TableCell<NamedProperty, Object>>() {
      @Override public TableCell<NamedProperty, Object> call(TableColumn<NamedProperty, Object> param) {
        return new EditingCell();
      }
    });
    
    valueCol.setOnEditCommit(
      new EventHandler<CellEditEvent<NamedProperty, Object>>() {
        @Override public void handle(CellEditEvent<NamedProperty, Object> t) {
          int row = t.getTablePosition().getRow();
          NamedProperty property = (NamedProperty) t.getTableView().getItems().get(row);
          property.setValue(t.getNewValue());
          
          currentObjectValue.setText(aPerson.toString());
        }
      }
    );    
    
    table.getColumns().setAll(nameCol, valueCol);
    table.setColumnResizePolicy(TableView.CONSTRAINED_RESIZE_POLICY);
    
    VBox layout = new VBox(10);
    layout.setStyle("-fx-background-color: cornsilk; -fx-padding: 10;");
    layout.getChildren().setAll(
      currentObjectValue,      
      table
    );
    VBox.setVgrow(table, Priority.ALWAYS);
    
    stage.setScene(new Scene(layout, 650, 600));
    stage.show();
  }
 
  private ObservableList<NamedProperty> createNamedProperties(Object object) {
    ObservableList<NamedProperty> properties = FXCollections.observableArrayList();
            
    for (Method method: object.getClass().getMethods()) {
      String name = method.getName();
      Class  type = method.getReturnType();
      if (type.getName().endsWith("Property"))  {
        try {
          properties.add(new NamedProperty(name, (Property) method.invoke(object)));
        } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException ex) {
          Logger.getLogger(TableViewPropertyEditor.class.getName()).log(Level.SEVERE, null, ex);
        }
      }
    }
    
    return properties;
  }
  
  public class NamedProperty {
    public NamedProperty(String name, Property value) {
      nameProperty.set(name);
      valueProperty = value;
    }
    
    private StringProperty nameProperty = new SimpleStringProperty();
    public StringProperty nameProperty()  { return nameProperty; }
    public StringProperty getName() { return nameProperty; }
    public void setName(String name) { nameProperty.set(name); }
 
    private Property valueProperty;
    public Property valueProperty() { return valueProperty; }
    public Object getValue() { return valueProperty.getValue(); }
    public void setValue(Object value) { valueProperty.setValue(value); }
  }
  
  public class Person {
    private final SimpleStringProperty firstName;
    private final SimpleBooleanProperty married;
 
    private Person(String firstName, Boolean isMarried) {
      this.firstName = new SimpleStringProperty(firstName);
      this.married   = new SimpleBooleanProperty(isMarried);
    }
    
    public SimpleStringProperty firstNameProperty() { return firstName; }
    public SimpleBooleanProperty marriedProperty() { return married; }
    public String getFirstName() { return firstName.get(); }
    public void setFirstName(String fName) { firstName.set(fName); }
    public Boolean getMarried() { return married.get(); }
    public void setMarried(Boolean isMarried) { married.set(isMarried); }
    
    @Override public String toString() { return firstName.getValue() + ": " + married.getValue(); }
  }  
  
  class EditingCell extends TableCell<NamedProperty, Object> {
    private TextField textField;
    private CheckBox checkBox;
    public EditingCell() {}
 
    @Override public void startEdit() {
      if (!isEmpty()) {
        super.startEdit();
        
        if (getItem() instanceof Boolean) {
          createCheckBox();
          setText(null);
          setGraphic(checkBox);
        } else {
          createTextField();
          setText(null);
          setGraphic(textField);
          textField.selectAll();
        }  
      }
    }
 
    @Override public void cancelEdit() {
      super.cancelEdit();
 
      if (getItem() instanceof Boolean) {
        setText(getItem().toString());
      } else {
        setText((String) getItem());
      }  
      setGraphic(null);
    }
 
    @Override public void updateItem(Object item, boolean empty) {
      super.updateItem(item, empty);
 
      if (empty) {
        setText(null);
        setGraphic(null);
      } else {
        if (isEditing()) {
          if (getItem() instanceof Boolean) {
            if (checkBox != null) {
              checkBox.setSelected(getBoolean());
            }
            setText(null);
            setGraphic(checkBox);
          } else {
            if (textField != null) {
              textField.setText(getString());
            }
            setText(null);
            setGraphic(textField);
          }  
        } else {
          setText(getString());
          setGraphic(null);
        }
      }
    }
 
    private void createTextField() {
      textField = new TextField(getString());
      textField.setMinWidth(this.getWidth() - this.getGraphicTextGap()* 2);
      textField.focusedProperty().addListener(new ChangeListener<Boolean>() {
        @Override public void changed(ObservableValue<? extends Boolean> observable, Boolean oldValue, Boolean newValue) {
          if (!newValue) {
            commitEdit(textField.getText());
          }
        }
      });
    }
 
    private void createCheckBox() {
      checkBox = new CheckBox();
      checkBox.setSelected(getBoolean());
      checkBox.setMinWidth(this.getWidth() - this.getGraphicTextGap()* 2);
      checkBox.focusedProperty().addListener(new ChangeListener<Boolean>() {
        @Override public void changed(ObservableValue<? extends Boolean> observable, Boolean oldValue, Boolean newValue) {
          if (!newValue) {
            commitEdit(checkBox.isSelected());
          }
        }
      });
    }
 
    private String getString() {
      return getItem() == null ? "" : getItem().toString();
    }
    
    private Boolean getBoolean() {
      return getItem() == null ? false : (Boolean) getItem();
    }
  }  
}

Answer to StackOverflow question: Multiple Components in one column of JavaFX TableView

Good tutorial. I have a question. I wish to have a TableView with say two columns. Now I wish to have a ComboBox at row 1 of both the columns. Whatever item be chosen for ComboBox would become column header. From Row 2 onwards, only numbers would be entered. Can you kindly suggest ? Thanks

Nice example. Unfortunately when I tried it any changes I made were not committed, the original value always appeared in the table.

EDIT: This happens using the mouse, if I click on another property so the control loses focus the commitEdit fails. If I TAB out of the textfield that works but I can't tab out of the married field because there is no subsequent property.