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AFAIK Flink's source/sink interface do not expose something akin to the
ProcessFunction's TimerService,
so I would suggest to use an ScheduledExecutorService or similar.
Technically you can use process functions as sources, the easiest way
being to create a dummy source which broadcasts a single value and apply
a process function which then creates the timers,
but IMO you're better off going with a plain SourceFunction.
On 29.01.2018 15:33, Ishwara Varnasi wrote:
> What is the best way to add timer to a source/sink? (Apologies if I’m asking the question that’s already being answered elsewhere), also is it possible to use process function as source or sink?
> Thanks
> Ishwara
>
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