Primitive types to AnyRef in Scala - scala

Question

I am adding new features to an open source project(pillar) to migrate Cassandra tables. I have a problem in operation that insert values a new table.
There is a table in Cassandra:
create table customer(
name text,
age int,
point int,
primary key(name, age)
)
I want to migrate from this table to test_person table.
create table test_person (
name text,
surname text,
point int,
city text,
primary key(name)
)
Here is an operation:
var s: PreparedStatement = session.prepare("insert into test_person (name, age, point) values (?, ?, ?)");
var r: Row = session.execute("select * from customer").one()
var arr: Array[AnyRef] = new Array[AnyRef](3)
arr(0) = row.getObject("name")
arr(1) = row.getObject("age")
arr(2) = row.getObject("point")
session.execute(s.bind(arr))
This is error message:
Type mismatch Can't assign primitive value to object.
I got as object and assign an array typed of AnyRef. What is wrong?
How can I handle this

Answer 1

This is happening because there is an implicit conversion happening from java.lang.Integer to Int. And Int is of type AnyVal not an AnyRef. Try using Array[Any] instead of Array[AnyRef] OR You can disable the implicit conversion by import scala.Predef.{Integer2int => _}
// This method in Predef.scala is causing the conversion
implicit def Integer2int(x: java.lang.Integer): Int

Answer 2

That is because, AnyRef is for objects and AnyVal is for primitives. You can use an Array[Any] in your case:
var s: PreparedStatement = session.prepare("insert into test_person (name, age, point) values (?, ?, ?)");
var r: Row = session.execute("select * from customer").one()
val arr = Array(r.getString("name"), r.getInt("age"), r.getInt("point"))