JEP proposed to target JDK 17: 406: Pattern Matching for switch (Preview)

mark.reinhold at oracle.com mark.reinhold at oracle.com
Tue Jun 1 17:48:28 UTC 2021


2021/5/19 16:14:03 -0700, mark.reinhold at oracle.com:
> The following JEP is proposed to target JDK 17:
> 
>   406: Pattern Matching for switch (Preview)
>        https://openjdk.java.net/jeps/406
> 
>   Summary: Enhance the Java programming language with pattern matching
>   for switch expressions and statements, along with extensions to the
>   language of patterns.  Extending pattern matching to switch allows
>   an expression to be tested against a number of patterns, each with a
>   specific action, so that complex data-oriented queries can be expressed
>   concisely and safely.
> 
> Feedback on this proposal from JDK Project Committers and Reviewers [1]
> is more than welcome, as are reasoned objections.  If no such objections
> are raised by 23:59 UTC on Wednesday, 26 May, or if they’re raised and
> then satisfactorily answered, then per the JEP 2.0 process proposal [2]
> I’ll target this JEP to JDK 17.

Hearing no objections, I’ve targeted this JEP to JDK 17.

- Mark


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