[
https://issues.apache.org/jira/browse/FLINK-1471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14306869#comment-14306869
]
ASF GitHub Bot commented on FLINK-1471:
---------------------------------------
Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/359#issuecomment-73013430
I do not quite get what this means now for the input validation.
Assume two classes, `A` and `B`, where `B` is a subclass of `A`.
```java
DataSet<B> data = ...;
data.map(new MapFunction<A, Long>() {
...
});
```
I though that the validation previously checked that the MapFunction's
input parameter is assignable from the data set type. So this is skipped now?
It is not a big deal, I am just wondering why...
> Allow KeySelectors to implement ResultTypeQueryable
> ---------------------------------------------------
>
> Key: FLINK-1471
> URL: https://issues.apache.org/jira/browse/FLINK-1471
> Project: Flink
> Issue Type: Bug
> Components: Java API
> Affects Versions: 0.9
> Reporter: Robert Metzger
> Assignee: Timo Walther
> Fix For: 0.9
>
>
> See https://github.com/apache/flink/pull/354
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
