MINOR: updated deprecated streams constants

[londoncalling]

Description

Docs update: Streams Developer Guide

• KEY_SERDE_CLASS_CONFIG and VALUE_KEY_SERDE_CLASS_CONFIG were deprecated in https://kafka.apache.org/11/javadoc/deprecated-list.html and replaced by DEFAULT_KEY_SERDE_CLASS_CONFIG and DEFAULT_VALUE_KEY_SERDE_CLASS_CONFIG

• Replaced deprecated constants in example code with up-to-date ones in 11 and all subsequent versions

Related

PR on apache/kafka: apache/kafka#6466

cc, please review/merge:

• @joel-hamill, @JimGalasyn, @guozhangwang

Signed-off-by: Victoria Bialas vicky@confluent.io

[JimGalasyn]

LGTM

[mjsax]

Thanks for the PR @londoncalling! Both configs are deprecated since 0.11.0.0 release (compare https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=68714788) -- can we update 0.11 and 1.0, too in this PR? The mentioned KIP also deprecates timestamp.extractor in favor of default.timestamp.extractor -- would be good to include this in this PR, too.

[londoncalling]

@mjsax , on the most recent commit, I replaced TIMESTAMP_EXTRACTOR_CLASS_CONFIG with DEFAULT_TIMESTAMP_EXTRACTOR_CLASS_CONFIG in the code example for defining a custom timestamp extractor in Developer Guide topic on Configuring a Streams Application on these versions:

• 10/streams/developer-guide/config-streams.html
• 11/streams/developer-guide/config-streams.html
• 20/streams/developer-guide/config-streams.html
• 21/streams/developer-guide/config-streams.html
• 22/streams/developer-guide/config-streams.html

It looks like it's already covered in the generated Javadoc. Let me know if this fixes it, and feel free to merge if all looks good!

[mjsax]

Thanks a lot for the PR @londoncalling!