GitHub user jeyhunkarimov opened a pull request: https://github.com/apache/kafka/pull/3599
KAFKA-4218: Add withkey methods to KGroupedStream This PR aims to add withKey methods to KGroupedStream interface. This PR is part of [KIP-149](https://cwiki.apache.org/confluence/display/KAFKA/KIP-149%3A+Enabling+key+access+in+ValueTransformer%2C+ValueMapper%2C+and+ValueJoiner). I separated the complete PR into 4 parts as discussed in [here](https://github.com/apache/kafka/pull/3570#issuecomment-317645747). So, this PR concentrates on adding withKey methods to KGroupedStream interface. You can merge this pull request into a Git repository by running: $ git pull https://github.com/jeyhunkarimov/kafka KIP-149_KGroupedStream Alternatively you can review and apply these changes as the patch at: https://github.com/apache/kafka/pull/3599.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #3599 ---- commit 6af52ab0822a9c557fbfd45a67d6584b506287ad Author: Jeyhun Karimov <je.kari...@gmail.com> Date: 2017-07-28T23:25:59Z Add withkey interfaces Add withkey interfaces Add withKey converters in AbstractStream Add tests Remove unnecessary changes ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---