There was a typo in my last e-mail: `.count("Java::equals")` should be `.count("Java"::equals)`
Thanks, Jacob Glickman On Thu, Nov 8, 2018 at 9:02 AM Jacob Glickman <jhg...@bucknell.edu> wrote: > Tagir, > > Nothing is wrong with it, but I think the addition of the convenience > method(s) would help to improve readability in some cases. Personally, I'd > much rather have the option of writing `.count("Java::equals")` than > `.filter("Java"::equals).count()`. As Zheka stated, this type of > convenience method could also be useful for findFirst, in addition to > findAny, distinct, etc. > > Thanks, > > Jacob Glickman > > On Thu, Nov 8, 2018 at 4:46 AM Tagir Valeev <amae...@gmail.com> wrote: > >> What's wrong with `filter(predicate).count()`? Saving nine characters? >> >> With best regards, >> Tagir Valeev. >> On Thu, Nov 8, 2018 at 8:02 AM Jacob Glickman <jhg...@bucknell.edu> >> wrote: >> > >> > Hello! >> > >> > I see myself having to often call count() as a terminal operation on a >> > Stream immediately after performing a filter operation. How feasible >> would >> > it be to add an overloaded count() method that accepts a Predicate, >> which >> > it uses as a filter before returning the count of elements in the >> Stream? >> > If this is supported, I'd gladly create the webrev & tests for it! >> > >> > I suppose the method signature can be something along the lines of: >> > >> > long count(Predicate<? super T> predicate) >> > >> > It would also seem reasonable to give this method to IntStream, >> > DoubleStream, and LongStream, but allowing them to use IntPredicate, >> > DoublePredicate, and LongPredicate respectively. >> > >> > Thanks, >> > >> > Jacob Glickman >> >