Re: Model abstract class in spark ml

http://blog.originate.com/blog/2014/02/27/types-inside-types-in-scala/ On Wed, Aug 31, 2016 at 2:19 AM, Sean Owen wrote: > Weird, I recompiled Spark with a similar change to Model and it seemed > to work but maybe I missed a step in there. > > On Wed, Aug 31, 2016 at 6:33 AM,

Re: Model abstract class in spark ml

Weird, I recompiled Spark with a similar change to Model and it seemed to work but maybe I missed a step in there. On Wed, Aug 31, 2016 at 6:33 AM, Mohit Jaggi wrote: > I think I figured it out. There is indeed "something deeper in Scala” :-) > > abstract class A { > def

Re: Model abstract class in spark ml

I think I figured it out. There is indeed "something deeper in Scala” :-) abstract class A { def a: this.type } class AA(i: Int) extends A { def a = this } the above works ok. But if you return anything other than “this”, you will get a compile error. abstract class A { def a: this.type

Re: Model abstract class in spark ml

thanks Sean. I am cross posting on dev to see why the code was written that way. Perhaps, this.type doesn’t do what is needed. Mohit Jaggi Founder, Data Orchard LLC www.dataorchardllc.com On Aug 30, 2016, at 2:08 PM, Sean Owen wrote: I think it's imitating, for example,

Re: Model abstract class in spark ml

thanks Sean. I am cross posting on dev to see why the code was written that way. Perhaps, this.type doesn’t do what is needed. Mohit Jaggi Founder, Data Orchard LLC www.dataorchardllc.com > On Aug 30, 2016, at 2:08 PM, Sean Owen wrote: > > I think it's imitating, for