On Tue, 4 Feb 2025 18:18:31 GMT, Andy Goryachev <ango...@openjdk.org> wrote:
>> Michael Strauß has updated the pull request incrementally with one
>> additional commit since the last revision:
>>
>> move enum field to top
>
> modules/javafx.base/src/main/java/com/sun/javafx/PreviewFeature.java line 37:
>
>> 35: * has opted into preview features.
>> 36: */
>> 37: public enum PreviewFeature {
>
> Why enum?
> Maybe use a regular class with a public constructor should do it.
> What do you think?
The idea is to make it easy and obvious to use from preview code:
PreviewFeature.MY_PREVIEW_FEATURE.checkEnabled();
In addition to that, any IDE can easily list all uses of an enum constant,
which gives you an overview where APIs of a particular feature are located.
After all, enums are just regular classes with singleton instances.
By the way, preview features can't be individually enabled or disabled. The
point of checking on a enum constant is to generate an appropriate error
message (including the name of the feature) in case the user didn't enable
preview features.
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PR Review Comment: https://git.openjdk.org/jfx/pull/1359#discussion_r1941783408
