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Date: Thu, 5 Mar 2015 02:44:38 +0000 (UTC)
From: "Henry Saputra (JIRA)" <jira@apache.org>
To: issues@flink.incubator.apache.org
Message-ID: <JIRA.12779674.1425522948000.5858.1425523478725@Atlassian.JIRA>
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 <JIRA.12779674.1425522948730@arcas>
Subject: [jira] [Commented] (FLINK-1654) Wrong scala example of POJO type in
 documentation
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    [ https://issues.apache.org/jira/browse/FLINK-1654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14348029#comment-14348029 ] 

Henry Saputra commented on FLINK-1654:
--------------------------------------

scala> case class Foo(val bar: Int)
defined class Foo

scala> val test = Foo(2)
test: Foo = Foo(2)

scala> test.bar
res0: Int = 2

scala> 

> Wrong scala example of POJO type in documentation
> -------------------------------------------------
>
>                 Key: FLINK-1654
>                 URL: https://issues.apache.org/jira/browse/FLINK-1654
>             Project: Flink
>          Issue Type: Bug
>          Components: Documentation
>    Affects Versions: 0.9
>            Reporter: Chiwan Park
>            Priority: Trivial
>
> In [documentation|https://github.com/chiwanpark/flink/blob/master/docs/programming_guide.md#pojos], there is a scala example of POJO
> {code}
> class WordWithCount(val word: String, val count: Int) {
>   def this() {
>     this(null, -1)
>   }
> }
> {code}
> I think that this is wrong because Flink POJO required public fields or private fields with getter and setter. Fields in scala class is private in default. We should change the field declarations to use `var` keyword or class declaration to case class.


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