On Fri, 26 Aug 2022 00:38:36 GMT, Weijun Wang <wei...@openjdk.org> wrote:
>> Yes, I'd expect if multiple sub-values are specified, it means all of them
>> should appear in `prop` in order to be matched. It does raise an interesting
>> question as to how to do the filtering based on an "OR" relationship.
>> Perhaps an union of 2 separate filter result? I'd suspect that "AND"
>> relationship would be more useful. One alternative is to disallow multiple
>> sub-values, and treat the value as one sub-value. Thoughts?
>>
>> As for strict vs loose, I am on the fence, thought that it'd be nice to not
>> having to enter the entire value. Could switch direction to be strict for
>> now and loosen it up if requested.
>
> The spec says the result of `getProviders(map)` must satisfy all criteria, so
> we already have AND. That sounds like it's better to treat multiple values in
> a single criterion to be OR.
>
> In fact, I don't know who would want to check for OR. For example, a user
> might be OK with either GCM or CCM, but it still makes no sense to check for
> "GCM or CCM". After all, at the end they need to decide whether to call
> `getInstance("GCM")` or `getInstance("CCM")`. They'd better call
> `getProviders()` twice to find out which exact one is supported.
>
> Maybe we can only support one value at the moment.
Hmm, ok, then let's just do one-subvalue for now. We can always enhance it
later if needed.
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PR: https://git.openjdk.org/jdk/pull/10008
