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Michael Noll edited comment on KAFKA-3511 at 4/11/16 1:54 PM: -------------------------------------------------------------- PS: As [~guozhang] hinted at, we should also keep in mind that preferably we build an API that is pleasant to use in both Java 7 and Java 8+ (notably with lambdas). Perhaps the work on this ticket means that we should take a step back and look at the state of the current API again and before we introduce possible changes because of the additions of this ticket. was (Author: miguno): PS: As [~guozhang] hinted at, we should also keep in mind that preferably we build an API that is pleasant to use in both Java 7 and Java 8 (notably with lambdas). Perhaps the work on this ticket means that we should take a step back and look at the state of the current API again and before we introduce possible changes because of the additions of this ticket. > Provide built-in aggregators sum() and avg() in Kafka Streams DSL > ----------------------------------------------------------------- > > Key: KAFKA-3511 > URL: https://issues.apache.org/jira/browse/KAFKA-3511 > Project: Kafka > Issue Type: Bug > Components: streams > Reporter: Guozhang Wang > Labels: api, newbie > Fix For: 0.10.0.0 > > > Currently we only have one built-in aggregate function count() in the Kafka > Streams DSL, but we want to add more aggregation functions like sum() and > avg(). -- This message was sent by Atlassian JIRA (v6.3.4#6332)