How can I get an instance of my customize cell in tableview?

Question

Hi,I'd like to generate a customize tablecell in my tableview.but How can I get an instance of my customize cell in tableview when selected item changes?
public class Person {
          private javafx.beans.property.BooleanProperty active;
          private StringProperty firstName;
          private StringProperty lastName;
          private StringProperty email;
          private Person(String fName, String lName, String email) {
               this.active = new SimpleBooleanProperty(true);
               this.firstName = new SimpleStringProperty(fName);
               this.lastName = new SimpleStringProperty(lName);
               this.email = new SimpleStringProperty(email);
          public javafx.beans.property.BooleanProperty activeProperty() { return active; }
          public StringProperty firstNameProperty() { return firstName; }
          public StringProperty lastNameProperty() { return lastName; }
          public StringProperty emailProperty() { return email; }
final ObservableList<Person> 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 class RatingCell extends TableCell<Person,String> {
    private NabiSyncRating rating;//NabiSyncRating is a customize control.it has some method ,like change backgroud-color,value,etc.
    public RatingCell() {
         rating = new NabiSyncRating(-1);
    @Override
    public void startEdit() {
        super.startEdit();
        if (isEmpty()) {
            return;
        rating.setDisable(false);
        rating.requestFocus();
    @Override
    public void cancelEdit() {
        super.cancelEdit();
        rating.setDisable(true);
    public void commitEdit(String value) {
        super.commitEdit(value);
        rating.setDisable(true);
    @Override
    public void updateItem(String item, boolean empty) {
        super.updateItem(item, empty);
Callback<TableColumn<Person, String>, TableCell<Person, String>> ratingCellFactory = new Callback<TableColumn<Person, String>, TableCell<Person, String>>() {
                    @Override
                    public TableCell<Person, String> call(
                              TableColumn<Person, String> p) {
                         return new RatingCell();
TableColumn firstNameCol = new TableColumn();
firstNameCol.setCellFactory(ratingCellFactory);
firstNameCol.setMinWidth(100);
firstNameCol.setMaxWidth(224);
firstNameCol.setResizable(true);
tableView.getColumns().addAll(firstNameCol);
tableView.getSelectionModel().selectedItemProperty().addListener(new ChangeListener() {
              @Override
              public void changed(ObservableValue observable, Object oldvalue, Object newValue)
                           Person person=(Person)newValue;
                           //I'd like to get the instance of my customize control 'RatingCell' ,How can I get the RatingCell instance which in current row?
                     System.out.println("selected row is : " + newValue );
              });

Answer 1

HI,
I have found a solution to find it
First ,you need to set person property 'id' as the input parameter for your customized component method 'public void updateItem(String item, boolean empty)'
ratingCol.setCellValueFactory(new PropertyValueFactory<Person,String>("id"));
firstNameCol.setCellFactory(ratingCellFactory);and then you need to implement your customize component like this:
import javafx.scene.control.ContentDisplay;
import javafx.scene.control.TableCell;
public class RatingCell extends TableCell<Person,String> {
    private NabiSyncRating rating;
    public RatingCell() {
         rating = new NabiSyncRating(5);
        this.setGraphic(rating);
        this.setContentDisplay(ContentDisplay.GRAPHIC_ONLY);
        this.setEditable(true);
    public void updateRating()
         if(rating!=null)
              rating.selectRating();
    @Override
    public void startEdit() {
        super.startEdit();
        if (isEmpty()) {
            return;
        rating.setDisable(false);
        rating.requestFocus();
    @Override
    public void cancelEdit() {
        super.cancelEdit();
        rating.setDisable(true);
    public void commitEdit(String value) {
        super.commitEdit(value);
        rating.setDisable(true);
    @Override
    public void updateItem(String item, boolean empty) {
         if(item!=null && item.length()>0)
              if(rating!=null)
                   rating.setId("NR"+item);
                   this.setId("NC"+item);
            super.updateItem(item, empty);
} and find the current like this :
tableView.getSelectionModel().selectedItemProperty().addListener(new ChangeListener() {
                   @Override
                   public void changed(ObservableValue observable, Object oldvalue, Object newValue)
                        Person person=(Person)newValue;
                        Set<Node> colNodes=tableView.lookupAll("RatingCell");
                        for(Node nod:colNodes)
                             System.out.println("person.email:"+"NC"+person.email.getValue()+"|nodId: " + nod.getId()+"\r\n" );
                             if(("NC"+person.email.getValue()).equals(nod.getId()))
                                   System.out.println("get current instance" );
                                  ((RatingCell)nod).updateRating();
                   });Edited by: noob on Apr 20, 2012 4:49 PM