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https://issues.apache.org/jira/browse/FLINK-1159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15211924#comment-15211924
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ASF GitHub Bot commented on FLINK-1159:
---------------------------------------
Github user stefanobaghino commented on the pull request:
https://github.com/apache/flink/pull/1704#issuecomment-201325574
@tillrohrmann I moved forward on the batch extensions: I added support for
anonymous partial functions on `where` and `equalsTo` for joins and co-group
operations. I also deleted the old tests and provided a full set of unit tests
for each method under the same source root (`flink-scala`).
Now I have to work on the streaming and adjust the Scaladoc and
documentation. I hope next week I'll have something ready to close this PR. Let
me know if you prefer to have the work done so far pushed on this PR already.
> Case style anonymous functions not supported by Scala API
> ---------------------------------------------------------
>
> Key: FLINK-1159
> URL: https://issues.apache.org/jira/browse/FLINK-1159
> Project: Flink
> Issue Type: Bug
> Components: Scala API
> Reporter: Till Rohrmann
> Assignee: Stefano Baghino
>
> In Scala it is very common to define anonymous functions of the following form
> {code}
> {
> case foo: Bar => foobar(foo)
> case _ => throw new RuntimeException()
> }
> {code}
> These case style anonymous functions are not supported yet by the Scala API.
> Thus, one has to write redundant code to name the function parameter.
> What works is the following pattern, but it is not intuitive for someone
> coming from Scala:
> {code}
> dataset.map{
> _ match{
> case foo:Bar => ...
> }
> }
> {code}
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