Substream applied to unordered streams
brian.goetz at oracle.com
Fri Mar 15 11:45:58 PDT 2013
> it seems that 'limit' and 'substream' methods applied to unordered
> stream return result which seems to be only partially deterministic.
Right, which makes sense. substream (and by extension limit) are
defined in terms of encounter order; if the encounter order is merely
accidental, as it is in an unordered stream, there's not much we can do
> Similar thing is true for 'sorted' method provided stream contains equal
> elements and 'sorted' uses algorithm preserving order.
I think you're asking whether sorting is stable (for ordered streams) or
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