I have a Java method of the form
public interface JavaInterface< T extends A >{
static < T extends A > JavaInterface< T > callThis(){
//I want to call this in scala
}
}
In Scala I write
val x = JavaInterface[SomeClass].callThis()
but I get an error telling me it "is not a value". How do I call that static method in Scala?
You want:
val x = JavaInterface.callThis[SomeClass]()
It's the method, not the type, that's parameterised for static methods.
The code you have now assumes JavaInterface is an object with a nilary apply method that returns another object with a callThis() method. For that, your code would have to look something like this (in Scala):
trait JavaInterface[T] {
def callThis() = println("foobar")
}
object JavaInterface {
def apply[T <: JavaInterface[T]] = new JavaInterface[T] {}
}
Since you are calling the callThis method on JavaInterface, you need to do JavaInterface.callThis[SomeClass]() instead, giving the type parameter to the method instead of the object (or Java interface) you're calling it on.
