javafx TableView中的TableColumn如何填充的自带类，以及编辑单元格

在javafx中TableView中有TableColumn，即每一列，对于每一列中每个单元怎么填充，javafx的官方文档提供了两个实现类

 public class MapValueFactory
 extends java.lang.Object
 implements Callback,ObservableValue>

和

 public class PropertyValueFactory
 extends java.lang.Object
 implements Callback,ObservableValue>

以下是两个简单的例子：

 import java.util.HashMap;
 import java.util.Map;
 import javafx.application.Application;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
 import javafx.geometry.Insets;
 import javafx.scene.Group;
 import javafx.scene.Scene;
 import javafx.scene.control.Label;
 import javafx.scene.control.TableCell;
 import javafx.scene.control.TableColumn;
 import javafx.scene.control.TableView;
 import javafx.scene.control.cell.MapValueFactory;
 import javafx.scene.control.cell.TextFieldTableCell;
 import javafx.scene.layout.VBox;
 import javafx.scene.text.Font;
 import javafx.stage.Stage;
 import javafx.util.Callback;
 import javafx.util.StringConverter;

 public class TableViewSample5 extends Application {

     public static final String Column1MapKey = "A";
     public static final String Column2MapKey = "B";

     public static void main(String[] args) {
         launch(args);
     }

     @Override
     public void start(Stage stage) {
         Scene scene = new Scene(new Group());
         stage.setTitle("Table View Sample");
         stage.setWidth(300);
         stage.setHeight(500);

         final Label label = new Label("Student IDs");
         label.setFont(new Font("Arial", 20));

         TableColumn firstDataColumn = new TableColumn<>("Class A");
         TableColumn secondDataColumn = new TableColumn<>("Class B");

         firstDataColumn.setCellValueFactory(new MapValueFactory(Column1MapKey));
         firstDataColumn.setMinWidth(130);
         secondDataColumn.setCellValueFactory(new MapValueFactory(Column2MapKey));
         secondDataColumn.setMinWidth(130);

         TableView table_view = new TableView<>(generateDataInMap());

         table_view.setEditable(true);
         table_view.getSelectionModel().setCellSelectionEnabled(true);
         table_view.getColumns().setAll(firstDataColumn, secondDataColumn);


         final VBox vbox = new VBox();

         vbox.setSpacing(5);
         vbox.setPadding(new Insets(10, 0, 0, 10));
         vbox.getChildren().addAll(label, table_view);

         ((Group) scene.getRoot()).getChildren().addAll(vbox);

         stage.setScene(scene);

         stage.show();
     }

     private ObservableList generateDataInMap() {
         int max = 10;
         ObservableList allData = FXCollections.observableArrayList();
         for (int i = 1; i < max; i++) {
             Map dataRow = new HashMap<>();

             String value1 = "A" + i;
             String value2 = "B" + i;

             dataRow.put(Column1MapKey, value1);
             dataRow.put(Column2MapKey, value2);

             allData.add(dataRow);
         }
         return allData;
     }
 }

和

 import javafx.application.Application;
 import javafx.beans.property.SimpleStringProperty;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
 import javafx.geometry.Insets;
 import javafx.scene.Group;
 import javafx.scene.Scene;
 import javafx.scene.control.Label;
 import javafx.scene.control.TableColumn;
 import javafx.scene.control.TableView;
 import javafx.scene.control.TextField;
 import javafx.scene.control.cell.PropertyValueFactory;
 import javafx.scene.layout.VBox;
 import javafx.scene.text.Font;
 import javafx.stage.Stage;

 public class TableViewSample7 extends Application {

     private TableView table = new TableView();
     private final ObservableList data =
         FXCollections.observableArrayList(
             new Person("Jacob", "Smith", "[email protected]"),
             new Person("Isabella", "Johnson", "[email protected]"),
             new Person("Ethan", "Williams", "[email protected]"),
             new Person("Emma", "Jones", "[email protected]"),
             new Person("Michael", "Brown", "[email protected]")
         );

     public static void main(String[] args) {
         launch(args);
     }

     @Override
     public void start(Stage stage) {
         Scene scene = new Scene(new Group());
         stage.setTitle("Table View Sample");
         stage.setWidth(450);
         stage.setHeight(500);

         final Label label = new Label("Address Book");
         label.setFont(new Font("Arial", 20));

         table.setEditable(true);

         TableColumn firstNameCol = new TableColumn("First Name");
         firstNameCol.setMinWidth(100);
         firstNameCol.setCellValueFactory(
                 new PropertyValueFactory("firstName"));

         TableColumn lastNameCol = new TableColumn("Last Name");
         lastNameCol.setMinWidth(100);
         lastNameCol.setCellValueFactory(
                 new PropertyValueFactory("lastName"));

         TableColumn emailCol = new TableColumn("Email");
         emailCol.setMinWidth(200);
         emailCol.setCellValueFactory(
                 new PropertyValueFactory("email"));

         table.setItems(data);
         table.getColumns().addAll(firstNameCol, lastNameCol, emailCol);

         final VBox vbox = new VBox();
         vbox.setSpacing(5);
         vbox.setPadding(new Insets(10, 0, 0, 10));
         vbox.getChildren().addAll(label, table);

         ((Group) scene.getRoot()).getChildren().addAll(vbox);

         stage.setScene(scene);
         stage.show();
     }

     public static class Person {

         private final SimpleStringProperty firstName;
         private final SimpleStringProperty lastName;
         private final SimpleStringProperty email;

         private Person(String fName, String lName, String email) {
             this.firstName = new SimpleStringProperty(fName);
             this.lastName = new SimpleStringProperty(lName);
             this.email = new SimpleStringProperty(email);
         }

         public String getFirstName() {
             return firstName.get();
         }

         public void setFirstName(String fName) {
             firstName.set(fName);
         }

         public String getLastName() {
             return lastName.get();
         }

         public void setLastName(String fName) {
             lastName.set(fName);
         }

         public String getEmail() {
             return email.get();
         }

         public void setEmail(String fName) {
             email.set(fName);
         }
     }
 }