Maybe you are looking for declarations like this. "=> String" means the arg
isn't evaluated until it's used, which is just what you want with log
statements. The message isn't constructed unless it will be logged.
protected def logInfo(msg: => String) {
On Sun, Jun 25, 2017 at 10:28 AM kant kodali <[email protected]> wrote:
> Hi All,
>
> I came across this file
> https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/internal/Logging.scala
> and I am wondering what is the purpose of this? Especially it doesn't
> prevent any string concatenation and also the if checks are already done by
> the library itself right?
>
> Thanks!
>
>
