Hi Nirmalya,
the result of Evictor.evict() is used internally by the window operator. The
flow is as follows:
1. Trigger fires
2. Evictor is called if it exists
3. Elements are evicted from window buffer if evictor returned number > 0
4. User-provided window function is called to emit window results
Cheers,
Aljoscha
> On 03 Feb 2016, at 12:46, Nirmalya Sengupta <sengupta.nirma...@gmail.com>
> wrote:
>
> Hello Till <trohrm...@apache.org>,
>
> From your prompt reply:
>
> '... the CountTrigger always works together with the CountEvictor which will
> make sure that only .. ' - that explains it. Thanks. I missed it.
>
> A related question I have is this:
>
> Between the PURGE facility of Trigger and REMOVAL facility of Evictor, is
> there really a difference? Who uses the value that an
>
> Evictor.evict(Iterable<StreamRecord<Object>> elements, int size, W window) {
> .....
>
> }
>
> returns? A trigger doesn't seem to do it.
>
> -- Nirmalya
>
>
>
>
>
>
>
> --
> Software Technologist
> http://www.linkedin.com/in/nirmalyasengupta
> "If you have built castles in the air, your work need not be lost. That is
> where they should be.
> Now put the foundation under them."
