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Posted to issues@flink.apache.org by "Timo Walther (JIRA)" <ji...@apache.org> on 2014/10/01 15:03:34 UTC

[jira] [Commented] (FLINK-1133) Type extractor cannot determine type of function

    [ https://issues.apache.org/jira/browse/FLINK-1133?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14154764#comment-14154764 ] 

Timo Walther commented on FLINK-1133:
-------------------------------------

I will look into that.

> Type extractor cannot determine type of function
> ------------------------------------------------
>
>                 Key: FLINK-1133
>                 URL: https://issues.apache.org/jira/browse/FLINK-1133
>             Project: Flink
>          Issue Type: Bug
>          Components: Java API
>    Affects Versions: 0.7-incubating
>            Reporter: Stephan Ewen
>            Assignee: Timo Walther
>             Fix For: 0.7-incubating
>
>
> This function fails in the type extractor.
> {code}
> public static final class DuplicateValue<T> implements MapFunction<Tuple1<T>, Tuple2<T, T>> {
> 		
> 	@Override
> 	public Tuple2<T, T> map(Tuple1<T> vertex) {
> 		return new Tuple2<T, T>(vertex.f0, vertex.f0);
> 	}
> }
> {code}



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