No, it won't. The type of RDD#foreach is Unit, so it doesn't return an
RDD. The utility of foreach is purely for the side effects it generates,
not for its return value -- and modifying an RDD in place via foreach is
generally not a very good idea.
On Mon, Mar 24, 2014 at 6:35 PM, hequn cheng
points.foreach(p=>p.y = another_value) will return a new modified RDD.
2014-03-24 18:13 GMT+08:00 Chieh-Yen :
> Dear all,
>
> I have a question about the usage of RDD.
> I implemented a class called AppDataPoint, it looks like:
>
> case class AppDataPoint(input_y : Double, input_x : Array[Double
