Martin Grigorov-4 wrote
> On Wed, Feb 15, 2017 at 9:41 PM, guillaume.mary <

> guiom.mary@

> >
> wrote:
> 
>> Martin Grigorov-4 wrote
>> > Hi,
>> >
>> >>
>> >> Did I miss something ? if not is there anything planned about async IO
>> in
>> >> Wicket 8 ?
>> >>
>> >
>> > There is no planned support for asynchronous pages for Wicket 8!
>>
>> Is there some technical (known) reason ? Or just because of roadmap
>> decision
>> ?
>> I mean, if i have some time can I try to implement it or does it have
>> some
>> technical hard difficulties ?
>>
>> Did anyone already try and didn't manage to do it ?
>>
> 
> AFAIK no one tried.
> 
> In what use cases it would be helpful ?
> 
> Imagine the following:
> 1) the user clicks a link
> 2) onClick() is fired
> 2.1) some slow operation is started in the background
> 2.2) the request is suspended
> 2.3) the slow operation produces a result
> 3) how exaclty the resume will execute the rest of the body of onClick()
> to
> finish the business logic and then re-render (parts of) the page ?

I wasn't thinking to such a scenario, I agree this is complex to implement.
I though to the final "push" into the OutputStream of the ServletResponse. I
though that Wicket buffers its response into memory before writing it to the
stream, this could be done asynchronously. But I'm maybe wrong. If this
could be done it would help the server because at such a moment there's no
more business logic to be done by the application.
But maybe Wicket also has work (Thread dependent) to do after that ?



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