GitHub user jelmerk opened a pull request:
https://github.com/apache/flink/pull/5616
[FLINK-8828] [stream, dataset, scala] Introduce collect method
## What is the purpose of the change
A collect function is a method that takes a Partial Function as its
parameter and applies it to all the elements in the collection to create a new
collection which satisfies the Partial Function. It makes certain things nicer
to express
## Brief change log
- added collect method on scala dataset and datastream api
## Verifying this change
It seems to be hard to find a place where this could be tested in
isolation, suggestions welcome
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: yes
- The serializers: don't know
- The runtime per-record code paths (performance sensitive): yes
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Yarn/Mesos, ZooKeeper:don't know
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? yes
- If yes, how is the feature documented? JavaDocs
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jelmerk/flink collect_support
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/5616.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 #5616
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commit 61b4bcb7c941950d62d0db0aa2041f1796fdbaaf
Author: Jelmer Kuperus <jkuperus@...>
Date: 2018-03-02T09:17:54Z
[FLINK-8828] [stream, dataset, scala] Introduce collect method
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