如果行不符合bean，如何使JavaFX TableView可编辑？

Question

如何在JavaFX中的TableView中使单元格可编辑？

我致电setEditable()，名为setCellFactory()，已实施WrtitableValue，但这并没有帮助。

import javafx.application.Application;
import javafx.beans.value.ObservableValue;
import javafx.beans.value.ObservableValueBase;
import javafx.beans.value.WritableObjectValue;
import javafx.beans.value.WritableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Scene;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.TextFieldTableCell;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
import javafx.util.Callback;

/**
 * Table editing does not work
 */
public class TableViewEditable2 extends Application{

   public static class Person {
      private String firstName;
      private String lastName;

      public Person(String firstName, String lastName) {
         this.firstName = firstName;
         this.lastName = lastName;
      }
   }

   public static class FirstName extends ObservableValueBase<String> implements WritableValue<String> {

      private Person person;

      public FirstName(Person person) {
         this.person = person;
      }

      public String getValue() {
         return person.firstName;
      }

      public void setValue(String value) {
         person.firstName = value;
         fireValueChangedEvent();
      }
   }

   public static class LastName extends ObservableValueBase<String> implements WritableValue<String> {

      private Person person;

      public LastName(Person person) {
         this.person = person;
      }

      public String getValue() {
         return person.lastName;
      }

      public void setValue(String value) {
         person.lastName = value;
         fireValueChangedEvent();
      }
   }


   @Override
   public void start(Stage primaryStage) throws Exception {

      ObservableList<Person> teamMembers = FXCollections.observableArrayList();
      teamMembers.add(new Person("John", "Johnson"));
      teamMembers.add(new Person("Ivan", "Ivanov"));

      TableView<Person> table = new TableView<Person>();
      table.setItems(teamMembers);
      table.setEditable(true);


      TableColumn<Person,String> firstNameCol = new TableColumn<Person,String>("First Name");
      firstNameCol.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Person, String>, ObservableValue<String>>() {
         public ObservableValue<String> call(TableColumn.CellDataFeatures<Person, String> param) {
            FirstName ans = new FirstName(param.getValue());
            return ans;
         }
      });
      firstNameCol.setCellFactory(TextFieldTableCell.<Person>forTableColumn());



      TableColumn<Person,String> lastNameCol = new TableColumn<Person,String>("Last Name");
      lastNameCol.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Person, String>, ObservableValue<String>>() {
         public ObservableValue<String> call(TableColumn.CellDataFeatures<Person, String> param) {
            return new LastName(param.getValue());
         }
      });
      lastNameCol.setCellFactory(TextFieldTableCell.<Person>forTableColumn());



      table.getColumns().setAll(firstNameCol, lastNameCol);


      StackPane root = new StackPane();
      root.getChildren().add(table);

      Scene scene = new Scene(root, 300, 250);

      primaryStage.setTitle("TableViewEditable2");
      primaryStage.setScene(scene);
      primaryStage.show();



   }
}