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Date: Wed, 25 Jun 2014 13:22:24 +0000 (UTC)
From: "Timo Walther (JIRA)" <jira@apache.org>
To: issues@flink.incubator.apache.org
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Subject: [jira] [Updated] (FLINK-970) Implement a first(n) operator
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     [ https://issues.apache.org/jira/browse/FLINK-970?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Timo Walther updated FLINK-970:
-------------------------------

    Assignee:     (was: Timo Walther)

> Implement a first(n) operator
> -----------------------------
>
>                 Key: FLINK-970
>                 URL: https://issues.apache.org/jira/browse/FLINK-970
>             Project: Flink
>          Issue Type: New Feature
>            Reporter: Timo Walther
>            Priority: Minor
>
> It is only syntactic sugar, but I had many cases where I just needed the first element  or the first 2 elements in a GroupReduce.
> E.g. Instead of
> {code:java}
> .reduceGroup(new GroupReduceFunction<String, String>() {
> 					@Override
> 					public void reduce(Iterator<String> values, Collector<String> out) throws Exception {
> 						out.collect(values.next());
> 					}
> 				})
> {code}
> {code:java}
> .first()
> {code}



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