Gatherers -- conditionalWindowFixed?

[David Alayachew]

And this may also be better named as a split method instead of the long
conditionalWindowFixed.

On Wed, Jan 10, 2024 at 1:17 AM David Alayachew <davidalayachew at gmail.com>
wrote:

> Oh, I made a mistake. Let me try it again.
>
> If the predicate is true, add the element to the current list (create list
> prior if needed). Else if the predicate is false, send the list down to the
> stream, then add the element to a new list (the new current list, if you
> will).
>
>
> On Wed, Jan 10, 2024 at 1:05 AM David Alayachew <davidalayachew at gmail.com>
> wrote:
>
>> Hello Core Libs Dev Team,
>>
>> I have been reading through JEP 461 (https://openjdk.org/jeps/461) about
>> Gatherers, and I'm really excited for what this will enable for us.
>>
>> By far, the most important functionality that this API facilitates is the
>> ability to create windows. Anytime I needed a window, I was basically
>> forced to use a for loop. Now, the 2 most common window cases are being
>> handed to us for free. It is very much appreciated.
>>
>> Could we add one more method for a conditionalWindowFixed? We would need
>> to pass in some Predicate<T>. If the predicate returns true, create a list
>> (if it does not already exist) then add the element to it. If the predicate
>> returns false while the list is empty, then just move along to the next.
>> Else if the predicate returns false while the list is non empty, pass the
>> list down into the stream. So, you end up with Stream<T> ----->
>> Stream<List<T>>.
>>
>> The reason I think this is worth adding is because it facilitates a
>> really common use case. We may not want all windows to be the same size.
>>
>> Is this something worth adding to the Gatherers API?
>>
>> Thank you for your time and help!
>> David Alayachew
>>
>
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