[jira] [Assigned] (FLINK-23907) Type Migration: introducing primitive functional interfaces

["Chesnay Schepler (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-23907?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chesnay Schepler reassigned FLINK-23907:
----------------------------------------

    Assignee: Oleg Smirnov

> Type Migration: introducing primitive functional interfaces
> -----------------------------------------------------------
>
>                 Key: FLINK-23907
>                 URL: https://issues.apache.org/jira/browse/FLINK-23907
>             Project: Flink
>          Issue Type: Improvement
>            Reporter: Oleg Smirnov
>            Assignee: Oleg Smirnov
>            Priority: Minor
>              Labels: refactoring, type-migration
>
> Hey!
> We are a collaborative group of researchers from JetBrains Research and Oregon State University, and we are testing our data-driven [plugin|https://github.com/JetBrains-Research/data-driven-type-migration], which is based on the IntelliJ's [Type Migration|https://www.jetbrains.com/help/idea/type-migration.html] framework and adjusts it using custom structural-replace templates that express the adaptations required to perform the type changes.
> I want to apply several type changes using it and open the PR, thus introducing primitive functional interfaces in order to prevent unnecessary boxing (like *{{BooleanSupplier}}* instead *{{Supplier<Boolean>}}*, {{*OptionalInt*}} instead of {{*Optional<Integer>*}}, {{*Predicate<T>*}} instead of {{*Function<T, Boolean*}}>, etc.), since it can affect the performance of the code (_Effective Java,_ Items 44, 61).
> The patch itself is already prepared (because it is done automatically using the plugin), so I guess I will need to open this ticket, receive your approval, and then open the PR?
> It would help us a lot to evaluate the usefulness of our approach!
> Thank you in advance!



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