Java 8 lambdas are broken to the point of near-uselessness (because of
checked exceptions and inability to close over non-final references). I
wouldn't use them as a deciding factor in language choice.
Any competent developer should be able to write reasonable java-in-scala
after a week and readi
Hi Bryan,
I would choose a language based on the requirements. It does not make sense
if you have a lot of dependencies that are java-based components and
interoperability between java and scala is not always obvious.
I agree with the above comments that Java is much more verbose than Scala
in ma
It's true that Java 8 lambdas help. If you've read Learning Spark, where
they use Java 7, Python, and Scala for the examples, it really shows how
awful Java without lambdas is for Spark development.
Still, there are several "power tools" in Scala I would sorely miss using
Java 8:
1. The REPL (int
we are using java7..its much more verbose that java8 or scala examples
in addition there sometimes libraries that has no java api, so you need to
write them by yourself(e.g. graphx)
on the other hand, scala is not trivial language like java, so it depends
on your team
On 8 September 2015 at 17:44
Sean:
w.r.t. performance, I meant Scala/Java vs Python.
Cheers
On Tue, Sep 8, 2015 at 7:28 AM, Sean Owen wrote:
> Why would Scala vs Java performance be different Ted? Relatively
> speaking there is almost no runtime difference; it's the same APIs or
> calls via a thin wrapper. Scala/Java vs Py
Thank you for the quick responses. It's useful to have some insight from
folks already extensively using Spark.
Regards,
Bryan Jeffrey
On Tue, Sep 8, 2015 at 10:28 AM, Sean Owen wrote:
> Why would Scala vs Java performance be different Ted? Relatively
> speaking there is almost no runtime dif
Why would Scala vs Java performance be different Ted? Relatively
speaking there is almost no runtime difference; it's the same APIs or
calls via a thin wrapper. Scala/Java vs Python is a different story.
Java libraries can be used in Scala. Vice-versa too, though calling
Scala-generated classes ca
Performance wise, Scala is by far the best choice when you use Spark.
The cost of learning Scala is not negligible but not insurmountable either.
My personal opinion.
On Tue, Sep 8, 2015 at 6:50 AM, Bryan Jeffrey
wrote:
> All,
>
> We're looking at language choice in developing a simple streami
It worked for Twitter!
Seriously though: scala is much much more pleasant. And scala has a great
story for using Java libs. And since spark is kind of framework-y (use its
scripts to submit, start up repl, etc) the projects tend to be lead
projects, so even in a big company that uses Java the cost
All,
We're looking at language choice in developing a simple streaming
processing application in spark. We've got a small set of example code
built in Scala. Articles like the following:
http://www.bigdatatidbits.cc/2015/02/navigating-from-scala-to-spark-for.html
would seem to indicate that Scal
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