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Date: Thu, 23 Apr 2015 18:12:39 +0000 (UTC)
From: "Edward Sargisson (JIRA)" <jira@apache.org>
To: issues@spark.apache.org
Message-ID: <JIRA.12823497.1429812658000.9212.1429812759345@Atlassian.JIRA>
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 <JIRA.12823497.1429812658103@arcas>
Subject: [jira] [Updated] (SPARK-7096) Java example for Streaming on site
 uses map instead of mapToPair
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     [ https://issues.apache.org/jira/browse/SPARK-7096?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Edward Sargisson updated SPARK-7096:
------------------------------------
    Description: 
https://spark.apache.org/docs/latest/streaming-programming-guide.html

Here word count example for java is incorrect. It should be mapToPair instead of map. 

Incorrect:
{noformat}
JavaPairDStream<String, Integer> pairs = words.map(
  new PairFunction<String, String, Integer>() {
    @Override public Tuple2<String, Integer> call(String s) throws Exception {
      return new Tuple2<String, Integer>(s, 1);
    }
  });
{noformat}

  was:
https://spark.apache.org/examples.html

Here word count example for java is incorrect. It should be mapToPair instead of map. Correct example is here:

https://github.com/apache/spark/blob/master/examples/src/main/java/org/apache/spark/examples/JavaWordCount.java


> Java example for Streaming on site uses map instead of mapToPair
> ----------------------------------------------------------------
>
>                 Key: SPARK-7096
>                 URL: https://issues.apache.org/jira/browse/SPARK-7096
>             Project: Spark
>          Issue Type: Bug
>          Components: Documentation, Java API
>    Affects Versions: 1.3.1
>         Environment: Web
>            Reporter: Edward Sargisson
>            Assignee: Reynold Xin
>            Priority: Minor
>
> https://spark.apache.org/docs/latest/streaming-programming-guide.html
> Here word count example for java is incorrect. It should be mapToPair instead of map. 
> Incorrect:
> {noformat}
> JavaPairDStream<String, Integer> pairs = words.map(
>   new PairFunction<String, String, Integer>() {
>     @Override public Tuple2<String, Integer> call(String s) throws Exception {
>       return new Tuple2<String, Integer>(s, 1);
>     }
>   });
> {noformat}


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