[jira] [Created] (FLINK-6576) Allow ConfigOptions to validate the configured value

[Shang Yuanchun (Jira)]

Chesnay Schepler created FLINK-6576:
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             Summary: 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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