RFR 8005311: Add Scalable Updatable Variables, DoubleAccumulator, DoubleAdder, LongAccumulator, LongAdder (original) (raw)

Doug Lea dl at cs.oswego.edu
Sat Jan 5 21:01:17 UTC 2013

On 01/05/13 15:10, Martin Buchholz wrote:

I did a bit of review.

Thanks especially for finding the doc adaptions missing in the transition from un-lambda-ized jsr166e versions!

---- """The supplied accumulator function must be side-effect-free. It may be re-applied when attempted updates fail due to contention among threads. """ Too strong. I prefer """The supplied accumulator function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads. """ Users can usefully use side effects for e.g. performance monitoring or debugging.

Fine. We will need some consistent wording about such functions all over the stream APIs as well.

-Doug

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