Scala classOf for type parameter
Due Manifest is deprecated (Since Scala 2.10.0) this is the updated answer -
import scala.reflect.ClassTag
import scala.reflect._
object WorkUnitController extends Controller {
def updateObject[T: ClassTag](toUpdate: T, body: JsonObject){
val source = gson.fromJson(body, classTag[T].runtimeClass)
???
}
}
You should use ClassTag
instead of ClassManifest
and .runtimeClass
instead of .erasure
Original answer - Yes, you can do that using manifests:
object WorkUnitController extends Controller {
def updateObject[T: ClassManifest](toUpdate: T, body: JsonObject){
val source = gson.fromJson(body, classManifest[T].erasure);
...
}
}
Vasil's and Maxim's answer helped me.
Personally, I prefer the syntax where implicit
is used for adding such parameters (the presented : ClassTag
is shorthand for it. So here, in case someone else also sees this to be a better way:
import scala.reflect.ClassTag
object WorkUnitController extends Controller {
def updateObject[T](toUpdate: T, body: JsonObject)(implicit tag: ClassTag[T]){
val source = gson.fromJson(body, tag.runtimeClass)
???
}
}
Disclaimer: I did not compile the above, but my own similar code works this way.