[jira] [Created] (KAFKA-3497) Streams ProcessorContext should support forward() based on child name

["Yuto Kawamura (JIRA)" <ji...@apache.org>]

Yuto Kawamura created KAFKA-3497:
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             Summary: Streams ProcessorContext should support forward() based on child name
                 Key: KAFKA-3497
                 URL: https://issues.apache.org/jira/browse/KAFKA-3497
             Project: Kafka
          Issue Type: Improvement
          Components: kafka streams
    Affects Versions: 0.10.0.1
            Reporter: Yuto Kawamura


Currently {{ProcessorContext}} only supports {{forward(K, V)}} which forwards KV to all children and {{forward(K, V, int childIndex}} which forwards KV to  specific children that is identified by an index of children List.
While letting a Processor to issue messages which have arbitrary different downstream destination, it is not handy to keep ordering of calling {{addProcessor}}(or {{addSink}}) and childIndex consistent.

Here I'd like to suggest introducing another signature {{forward(K, V, String childName)}} which allows to use child name(first argument to addProcessor or addSink) to indicate the destination downstream.

Thread on user mailing list: http://mail-archives.apache.org/mod_mbox/kafka-users/201604.mbox/<CA...@mail.gmail.com>



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