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https://issues.apache.org/jira/browse/FLINK-6457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ruidong Li updated FLINK-6457:
------------------------------
Description:
clean up ScalarFunction interface:
Some methods in ScalarFunction and TableFunction are unnecessary, e.g
toString() and getResultType in ScalarFunction
this issue intend to clear the interface, only methods related to `Collector`
will remain in TableFunction interface, and ScalarFunction interface shall have
no methods , user can choose whether to implement the `getResultType` method,
which will be called by reflection, and the Flink document will have
instructions for user.
was:clean up ScalarFunction interface
> Clean up ScalarFunction and TableFunction interface
> ---------------------------------------------------
>
> Key: FLINK-6457
> URL: https://issues.apache.org/jira/browse/FLINK-6457
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: Ruidong Li
> Assignee: Ruidong Li
>
> clean up ScalarFunction interface:
> Some methods in ScalarFunction and TableFunction are unnecessary, e.g
> toString() and getResultType in ScalarFunction
> this issue intend to clear the interface, only methods related to `Collector`
> will remain in TableFunction interface, and ScalarFunction interface shall
> have no methods , user can choose whether to implement the `getResultType`
> method, which will be called by reflection, and the Flink document will have
> instructions for user.
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