Platform#runLater Question
Anthony Petrov
anthony.petrov at oracle.com
Tue Apr 2 01:18:11 PDT 2013
Platform#runLater is not a general purpose mechanism to execute deferred
tasks. Its purpose is to schedule execution of runnables on the event
thread in order to perform GUI-related operations. As Richard says, the
event thread is a native GUI thread. There's only one such thread per
application, hence the design of this machinery.
Note that running code that is unrelated to GUI on the event thread may
only make your application UI more sluggish and jerky, or even appearing
frozen sometimes.
If you need to execute general-purpose tasks asynchronously, you have to
create an executor service instance (such as a ForkJoinPool) yourself
and submit your runnables there.
--
best regards,
Anthony
On 4/1/2013 23:05, Mark Fortner wrote:
> In the past, I've found the *Platform#runLater* method to be a useful way
> to run tasks. However, I've noticed that the code that runs my thread is
> not really configurable or accessible. For example, it would be nice to be
> able to specify and configure a top-level *ThreadPoolExecutor* to handle my
> tasks. Or be able to switch out *Executor* implementations.
>
> I was wondering if there was some reason for implementing runLater this
> way, or if there are any plans to change it in the future?
>
>
> Cheers,
>
> Mark
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