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https://issues.apache.org/jira/browse/FLINK-3978?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Greg Hogan updated FLINK-3978:
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Summary: Add hasBroadcastVariable method to RuntimeContext (was: Add
containsBroadcastVariable method to RuntimeContext)
> Add hasBroadcastVariable 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.
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