flink-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Greg Hogan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-3978) Add containsBroadcastVariable method to RuntimeContext
Date Thu, 26 May 2016 17:18:12 GMT

    [ https://issues.apache.org/jira/browse/FLINK-3978?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15302501#comment-15302501
] 

Greg Hogan commented on FLINK-3978:
-----------------------------------

That was my first thought, and I wanted to name the ticket "add hassers to RuntimeContext",
but I deferred to {{Collections}}'s nomenclature when typing this out.

> Add containsBroadcastVariable method to RuntimeContext
> ------------------------------------------------------
>
>                 Key: FLINK-3978
>                 URL: https://issues.apache.org/jira/browse/FLINK-3978
>             Project: Flink
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 1.1.0
>            Reporter: Greg Hogan
>            Assignee: Greg Hogan
>            Priority: Minor
>
> The javadocs for {{RuntimeContext}} state that {{getAccumulator}} "throws an exception
if the accumulator does not exist or if the accumulator exists, but with different type",
although {{AbstractRuntimeUDFContext}} does not throw an exception but will return null.
> The javadocs for {{getBroadcastVariable}} do not mention throwing an exception. Currently
the only way to handle a broadcast variable that that may or may not exist is to catch and
ignore the exception. Adding a  {{containsBroadcastVariable}} method to {{RuntimeContext}}
would make this explicit.



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

Mime
View raw message