Serves the same purpose as
BufferedIterator in Scala, but its
properly doesn't consume the next element.
Counts elements fetched form the underlying iterator.
Utility trait for classes that want to log data.
A HashMap and a PriorityQueue hybrid.
type of keys
type of values; values must be comparable
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.cassandra namespace which don't map to Spark Cassandra Connector known properties.
A helper class to make it possible to access components written in Scala from Java code.