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Posted to user@storm.apache.org by Dirk Weissenborn <di...@gmail.com> on 2014/03/13 18:22:54 UTC

lookup values in aggregated state in the same stream

Hey guys,

wanted to ask if it is possible to perform a lookup on an aggregated state
while creating it. Basically I want to fill a state with some counts and
while doing that I want to access the currently already persited counts. Is
there anyway to get access to them?

Best

Re: lookup values in aggregated state in the same stream

Posted by Danijel Schiavuzzi <da...@schiavuzzi.com>.

In Trident, you can use stateQuery() to query a TridentState. See the Word
Count demo topology for an example of usage.

Best regards,

Danijel Schiavuzzi
www.schiavuzzi.com



On Thu, Mar 13, 2014 at 6:22 PM, Dirk Weissenborn <
dirk.weissenborn@gmail.com> wrote:

> Hey guys,
>
> wanted to ask if it is possible to perform a lookup on an aggregated state
> while creating it. Basically I want to fill a state with some counts and
> while doing that I want to access the currently already persited counts. Is
> there anyway to get access to them?
>
> Best
>



-- 
Danijel Schiavuzzi

E: danijel@schiavuzzi.com
W: www.schiavuzzi.com
T: +385989035562
Skype: danijels7