Change name or Title of javafx.concurrent.Task

Question

Is it possible to change/set name or title of javafx.concurrent.Task just like in Thread thread.setName("name") ?

Answer 1

I am guessing you haven't understood the concept of javafx.concurrent.Task

Task and Threads have the same difference, as a Runnable and Thread has.

Can you name a Runnable object ?

Still confused ? Explanation on the background..

From the Docs

public abstract class Task<V>
    extends java.util.concurrent.FutureTask<V>
                   implements Worker<V>, EventTarget

FutureTask

A FutureTask can be used to wrap a Callable or Runnable object. Because FutureTask implements Runnable, a FutureTask can be submitted to an Executor for execution.

Task

Likewise, since Task extends from FutureTask, it is very easy and natural to use a Task with the java concurrency Executor API. Since a Task is Runnable, you can also call it directly (by invoking the FutureTask.run() method) from another background thread. This allows for composition of work, or pass it to a new Thread constructed and executed manually.

So basically you will need a Thread or Executor to execute your Task and I hope you already know how to name a Thread or Threads spawned from Executors ;)

If not ..

• Naming your thread
• Naming Executor Threads - 1
• Naming Executor Threads - 2

Answer 2

javafx.concurrent.Task has a title property which you can update from within the Task with the protected method updateTitle(String newTitle).

In response to Edv Beq's comment: from the [docs|https://docs.oracle.com/javase/8/javafx/api/javafx/concurrent/Task.html#updateTitle-java.lang.String-]:

updateTitle protected void updateTitle(String title)

Updates the title property. Calls to updateTitle are coalesced and run later on the FX application thread, so calls to updateTitle, even from the FX Application thread, may not necessarily result in immediate updates to this property, and intermediate title values may be coalesced to save on event notifications.

This method is safe to be called from any thread.

My hunch would be that the title update is being queued to the jfx thread, but you are trying to access it immediately, and not getting the result you expect. I know this wasn't the example you asked for, but I hope it helps.