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From "Xu Mingmin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BEAM-1918) a BasicDoFn with abstract methods
Date Sat, 08 Apr 2017 07:24:41 GMT

    [ https://issues.apache.org/jira/browse/BEAM-1918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15961721#comment-15961721
] 

Xu Mingmin commented on BEAM-1918:
----------------------------------

+1 annotation has more flexibility. A strict interface makes sense for me, especially to avoid
any methods misused. Now it's only detected when job is running. True or my Eclipse isnot
setup properly?

> a BasicDoFn with abstract methods
> ---------------------------------
>
>                 Key: BEAM-1918
>                 URL: https://issues.apache.org/jira/browse/BEAM-1918
>             Project: Beam
>          Issue Type: Wish
>          Components: sdk-java-core
>            Reporter: Xu Mingmin
>            Assignee: Davor Bonaci
>
> {{DoFn}} use annotations to define the methods, which is not quite straight-forward.
A {{BasicDoFn}} with default methods, or define as abstract, can benefit developers:
> 1. direct view of method descriptor;
> 2. avoid incorrect methods during run-time;
>  



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