On 05/08/13 17:26, Chris Hegarty wrote:

On 8 May 2013, at 21:56, Mike Duigou <mike.dui...@oracle.com> wrote:


On May 7 2013, at 10:13 , Chris Hegarty wrote:

On 05/07/2013 05:04 PM, Mike Duigou wrote:
The "currently" MIN_ARRAY_SORT_GRAN statement bothers me. Can we remove 
currently?

No problem.  That would read...

"When the sub-array length reaches a {@linlplain #MIN_ARRAY_SORT_GRAN
  minimum granularity}, the sub-array is sorted using the appropriate
  Arrays.sort method."


linlplain -> linkplain

I would expect to see currently if the numerical value of MIN_ARRAY_SORT_GRAN 
was presented. We may change the threshold but we're otherwise committed to the 
constant name for the threshold.

I really don't care much for MIN_ARRAY_SORT_GRAN. I left it out from the 
original push, then flip flopped a few times on it. I don't like {@value}, as 
the field would still need to be public, but not referenced in the docs. I 
could be persuaded to go either way on it, but it is not worth spending time on.

One other issue with MIN_ARRAY_SORT_GRAN is that, according to separate 
compilation rules, as a static final int the value of MIN_ARRAY_SORT_GRAN 
can/will be compiled into code. The value isn't thereafter changeable except by 
recompiling everything which references it. In particular, injecting a 
different value into Arrays.MIN_ARRAY_SORT_GRAN would likely have no effect at 
runtime. This situation seems a little strange/unhelpful to me. It wouldn't 
even be practically changeable between releases since code compiled with  Java 
8 would keep using that value even when running on future versions with a 
different value for MIN_ARRAY_SORT_GRAN.

Good point Mike. I guess the same argument could be made for putting any value 
in the implementation detail. Any objection to completely removing any 
reference to this?


I agree that making it non-public is fine. Somewhere though there should
be a note saying that a "parallel" sort might not actually use multiple
threads because there are too few elements.

-Doug


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