RFR: 8279185: Support for IsoFields in JapaneseDate/MinguoDate/ThaiBuddhistDate [v3]

[Roger Riggs]

On Mon, 7 Mar 2022 01:27:39 GMT, Naoto Sato <naoto at openjdk.org> wrote:

>> src/java.base/share/classes/java/time/chrono/Chronology.java line 794:
>> 
>>> 792:      * @since 19
>>> 793:      */
>>> 794:     default boolean supportsIsoFields() {
>> 
>> I'm not a fan of this name, as it is inconsistent with the rest of JSR310 API, which uses an `is` prefix for booleans. I suggested `isIsoLike` because the key question is whether the chronology is "like" ISO. I would also be OK with `isBasedOnIso`, `isDerivedFromIso`, `isIsoBased` or something similar. Another risk here is limiting the method to refer only to `IsoFields`. While that is the use case here, it isn't the case that the only fields that might be affected are in `IsoFields`. Third parties may have  their own fields that are suitable for use with an ISO-like chronology.
>
> OK, I propose `isIsoBased()` for the name, which I initially thought of. If there is no objection, I will modify the spec/impl.

Is `IsoBased` is fine with me.  "isISOLike" is too vague.

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PR: https://git.openjdk.java.net/jdk/pull/7683