Transition executed only once in a TableRow

Question

h1. SCENARIO
h3. Model
/* Model is a Person containing a flag active */
class Person {
   private Boolean active = false;
   /* more fields and methods */
h3. View
/* The View is implemented in FXML */
class View extends TableView<Person> {  }-----
h3. Service backend
class Service implements Observable {
   public void run(){
      Person person = new Person();
      person.setActive( Math.random() > 0.5 ? true : false );
      setChanged();
      notifyObservers(person);
h3. AS IS ViewController
/* ViewController observes the service which sends back Person with a randomly changed flag [true or false] */
class ViewController implements Observer {
TableView table;
public void initialize(URL url, ResourceBundle rb){
/* some code before */
/* Implemented with datafx library */
table.setRowFactory(new Callback<TableView<Person>, TableRow<Person>>() {
            @Override
            public TableRow<Person> call(TableView<Person> p) {
                final CSSTableRow rowCell = new CSSTableRow() {
                    @Override
                    public void getCssState(List s) {
                        super.getCssState(s);
                        if(getItem() == null || s == null){
                            return;
                        if ( !((Person) getItem()).isActive() ) {
                            s.add("active");
                            FadeTransition fadeTransition = FadeTransitionBuilder.create()
                                    .duration(Duration.seconds(2))
                                    .node(this)
                                    .fromValue(0.1)
                                    .toValue(1)
                                    .build();
                            fadeTransition.play();
                rowCell.getStyleClass().add("table-row");
                return rowCell;
/* some code after */
}h4. Main Problem in AS-IS:
<font color="green" face="courier" size="3"> The animation animates for every event occurs in the table (click on a row, hover on a row and so on) </font>
h3. WANNA BE ViewController
<font color="blue" face="courier" size="3">
<li>Apply the transition when the service sends the updated Person.</li>
<li>Apply the transition to the row which this person belongs to.</li>
</font>
class ViewController implements Observer {
    public void update(Observable obj, Object message) {
        if (message instanceof Person) {
            Person p = (Person) message;
/* ----> 1. Find the row of this current person sent by service */
/* ----> 2. Apply the transition only once in the row found */
}Edited by: valerio.massa on 29-ago-2012 2.51

Answer 1

I just dont want to raise the animation via rowfactory, is that possible?
I would like to find a "better" (stylish) way to launch the animation (for example in the update(){} method, which is better theoretically speaking)