Serves the same purpose as BufferedIterator
in Scala, but its takeWhile
method
properly doesn't consume the next element.
Counts elements fetched form the underlying iterator.
A HashMap and a PriorityQueue hybrid.
An iterator that groups items having the same value of the given function (key).
Helper class to throw exceptions if there are environment variables in the spark.
A helper class to make it possible to access components written in Scala from Java code.
Useful stuff that didn't fit elsewhere.