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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2637) Add abstract equals, hashCode and toString methods to TypeInformation
Date Wed, 16 Sep 2015 08:08:46 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14747113#comment-14747113

ASF GitHub Bot commented on FLINK-2637:

Github user rmetzger commented on the pull request:

    Big change, but I didn't spot anything suspicious.
    +1 to merge

> Add abstract equals, hashCode and toString methods to TypeInformation
> ---------------------------------------------------------------------
>                 Key: FLINK-2637
>                 URL: https://issues.apache.org/jira/browse/FLINK-2637
>             Project: Flink
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 0.9, 0.10
>            Reporter: Fabian Hueske
>            Assignee: Till Rohrmann
>              Labels: starter
>             Fix For: 0.10
> Flink expects that implementations of {{TypeInformation}} have valid implementations
of {{hashCode}} and {{equals}}. However, the API does not enforce to implement these methods.
Hence, this is a common origin for bugs such as for example FLINK-2633.
> This can be avoided by adding abstract {{hashCode}} and {{equals}} methods to TypeInformation.
An abstract {{toString}} method could also be added.
> This change will brake the API and require to fix a couple of broken {{TypeInformation}}

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