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From Flavio Pompermaier <pomperma...@okkam.it>
Subject LookupableTableSource question
Date Fri, 28 Jun 2019 12:48:04 GMT
Hi to all,
I have a use case where I'd like to enrich a stream using a rarely updated
lookup table.
Basically, I'd like to be able to set a refresh policy that is triggered
either when a key was not found (a new key has probably been added in the
mean time) or a configurable refresh-period has elapsed.

Is there any suggested solution to this? The LookupableTableSource looks
very similar to what I'd like to achieve but I can't find a real-world
example using it and it lacks of such 2 requirements (key-values are not
refreshed after a configurable timeout and a KeyNotFound callback cannot be
handled).

Any help is appreciated,
Flavio

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