Age can be computed from the birthdate.
Looks like it doesn't need to be a member of Animal class.
If age is just for illustration, can you give an example which better
mimics the scenario you work on ?
Cheers
On Mon, Feb 15, 2016 at 8:53 PM, Hemalatha A <
hemalatha.amru...@googlemail.com> wrote:
> Hello,
>
> I want to know what are the cons and performance impacts of using a var
> inside class object in a Rdd.
>
>
> Here is a example:
>
> Animal is a huge class with n number of val type variables (approx >600
> variables), but frequently, we will have to update Age(just 1 variable)
> after some computation. What is the best way to do it?
>
> Class Animal(age: Int, name; String) = {
> var animalAge:Int = age
> val animalName:String = name
> val ......
> }
>
>
> val animalRdd = sc.parallelize(List(Animal(1,"XYZ"), Animal(2,"ABC") ))
> ...
> ...
> animalRdd.map(ani=>{
> if(ani.yearChange()) ani.animalAge+=1
> ani
> })
>
>
> Is it advisable to use var in this case? Or can I do ani.copy(animalAge=2)
> which will reallocate the memory altogether for the animal. Please advice
> which is the best way to handle such cases.
>
>
>
> Regards
> Hemalatha
>
