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https://issues.apache.org/jira/browse/FLINK-1819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14485163#comment-14485163
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Stephan Ewen commented on FLINK-1819:
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I agree, that would be a very good addition.
Since Input/Output formats are interfaces, what is the best place to hand over
the runtime context?
Ideas:
- Pass it to the {{open()}} method as an additional argument (API breaking)
- make formats implement a special interface {{ContextAware}} that defines a
{{setRuntimeContext()}} method.
> Allow access to RuntimeContext from Input and OutputFormats
> -----------------------------------------------------------
>
> Key: FLINK-1819
> URL: https://issues.apache.org/jira/browse/FLINK-1819
> Project: Flink
> Issue Type: Improvement
> Components: Local Runtime
> Affects Versions: 0.9, 0.8.1
> Reporter: Fabian Hueske
> Priority: Minor
> Fix For: 0.9
>
>
> User function that extend a RichFunction can access a {{RuntimeContext}}
> which gives the parallel id of the task and access to Accumulators and
> BroadcastVariables.
> Right now, Input and OutputFormats cannot access their {{RuntimeContext}}.
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