Hello All,
I need to
1) Look up some values from a source and cache them in a bolt
2) Filter a second stream based on the looked up values in (1).

Example:
1) Area Codes = 712, 915 -- these area codes might change from time to time
2) People living in different addresses

Emit: People leaving in area codes 712 and 915

I want to use bolts (not trident). I've been reading about in-bolt caching
to hold the looked up values but I am not sure how to utilize it in this
context and I am also not sure how a database join would work in this
context. Does someone have an example dealing with a similar use case?

thanks,
Clay

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