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https://issues.apache.org/jira/browse/FLINK-6576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16017507#comment-16017507
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Chesnay Schepler commented on FLINK-6576:
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[~greghogan] wrong issue? :) Think you're looking for FLINK-6628.
> Allow ConfigOptions to validate the configured value
> ----------------------------------------------------
>
> Key: FLINK-6576
> URL: https://issues.apache.org/jira/browse/FLINK-6576
> Project: Flink
> Issue Type: Wish
> Components: Configuration
> Reporter: Chesnay Schepler
> Priority: Trivial
>
> It is not unusual for a config parameter to only accept certain values. Ports
> may not be negative, modes way essentially be enums, and file paths must not
> be gibberish.
> Currently these validations happen manually after the value was extracted
> from the {{Configuration}}.
> I want to start a discussion on whether we want to move this validation into
> the ConfigOption itself.
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