GitHub user zentol opened a pull request:
https://github.com/apache/flink/pull/4965
[FLINK-8004][metrics][docs] Fix usage examples
## What is the purpose of the change
This PR fixes several issues in the metric usage examples in the
documentation.
## Brief change log
* remove wrong `@public` sections with a proper `@Override` a dpublic
modifier
* stream line all examples to just return the input (required adjusting
types)
* added missing return statements
* modified all examples to override all required methods (open() & map())
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zentol/flink 8004
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/4965.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 #4965
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commit 984473a58a70daf09d7d0cc2f409c05d391a4be1
Author: zentol <ches...@apache.org>
Date: 2017-11-07T10:40:15Z
[FLINK-8004][metrics][docs] Fix usage examples
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