flink-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Vasia Kalavri (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-3002) Add an EitherType to the Java API
Date Fri, 13 Nov 2015 11:18:10 GMT

    [ https://issues.apache.org/jira/browse/FLINK-3002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15003866#comment-15003866
] 

Vasia Kalavri commented on FLINK-3002:
--------------------------------------

Thanks Fabian!
A problem with this is that I cannot define the {{Either(Left)}} and {{Either(Right)}} constructors
because of type erasure.
I was thinking of distinguishing between right and left inside TypeInformation, so that I
can delegate the methods to the left or right types, but maybe that's not necessary.

> Add an EitherType to the Java API
> ---------------------------------
>
>                 Key: FLINK-3002
>                 URL: https://issues.apache.org/jira/browse/FLINK-3002
>             Project: Flink
>          Issue Type: New Feature
>          Components: Java API
>    Affects Versions: 0.10
>            Reporter: Stephan Ewen
>            Assignee: Vasia Kalavri
>             Fix For: 1.0
>
>
> Either types are recurring patterns and should be serialized efficiently, so it makes
sense to add them to the core Java API.
> Since Java does not have such a type as of Java 8, we would need to add our own version.
> The Scala API handles the Scala Either Type already efficiently. I would not use the
Scala Either Type in the Java API, since we are trying to get the {{flink-java}} project "Scala
free" for people that don't use Scala and o not want to worry about Scala version matches
and mismatches.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message