Hi Rajith,
IMO Java streams should not be used always as a practice. It is not a
silver bullet. There can be issues in performance in some cases as you have
pointed out.
One of the main advantage of using streams is when the logic of looping
is quite complex and involves different operations on collections together,
so that it can improve readability and understandability. But at the same
time it can result in new and subtle bugs if we are not careful enough [1].
The performance aspect of streams vs loops depends on the type of the
collection and the situation they deal with. This performance difference
can sometimes be negligible. Hence we cannot completely go with one against
another.
So IMHO we can consider using streams only when necessary based on our
requirement and use loops where it deserves.
[1]
https://blog.jooq.org/2014/06/13/java-8-friday-10-subtle-mistakes-when-using-the-streams-api/
Thanks,
Tharika.
On Thu, Mar 30, 2017 at 12:01 PM, Rajith Roshan <[email protected]> wrote:
> Hi all,
>
> Most of our C5 development have used java8 streams api frequently more
> than the for loops.
> But there are some research have done to compare the performance of
> streams api compared to for loops. They have shown that stream API is slow
> compared to for loops in many scenarios (even for parallel streams). [1][2]
>
> Is there any proper guidance to use which one over the other or are we
> using streams as a practice in C5 development
>
> [1] - https://blog.jooq.org/2015/12/08/3-reasons-why-you-
> shouldnt-replace-your-for-loops-by-stream-foreach/
> [2] - https://jaxenter.com/java-performance-tutorial-how-fast-
> are-the-java-8-streams-118830.html
>
> Thanks!
> Rajith
>
> --
> Rajith Roshan
> Software Engineer, WSO2 Inc.
> Mobile: +94-72-642-8350 <%2B94-71-554-8430>
>
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--
*Tharika Madurapperuma*
Software Engineer | WSO2, Inc.
Email : [email protected]
Mobile : +94777875624
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