Doesn't it mean the return type will be type of "this" class. So, it
doesn't have to be this instance of the class but it has to be type of this
instance of the class. When you have a stack of inheritance and call that
function, it will return the same type with the level that you called it.
On Sun, Jul 23, 2017 at 8:20 PM Reynold Xin <r...@databricks.com> wrote:
> It means the same object ("this") is returned.
>
> On Sun, Jul 23, 2017 at 8:16 PM, tao zhan <zhanta...@gmail.com> wrote:
>
>> Hello,
>>
>> I am new to scala and spark.
>> What does the "this.type" in set function for?
>>
>>
>>
>>
>> https://github.com/apache/spark/blob/481f0792944d9a77f0fe8b5e2596da1d600b9d0a/mllib/src/main/scala/org/apache/spark/mllib/optimization/GradientDescent.scala#L48
>>
>> Thanks!
>>
>> Zhan
>>
>
>
