In java code, getting a scala.Iterable from a java.util.List
I knew this 'How can I convert a Java Iterable to a Scala Iterable?'
But I am working on java 1.4.2 code with a scala API.
开发者_如何学运维How can I get a scala.Iterable
from a java.util.List
?
Thank you for your suggestion.
Everything you need is in scala.lang.JavaConversions
import java.util.{List => JList, ArrayList}
import scala.collection.JavaConversions._
val jul1: JList[String] = new ArrayList[String]; jul1.add("Boo!")
val sb1 = jul1.toBuffer
val ss1 = jul1.toSeq // Same result as toBuffer
This produces a mutable collection in sml1 (a Buffer
). If you want an immutable collection (List
, e.g.) convert that mutable collection:
val sl1 = jul1.toList
Edit: Hmm... Java 1.4.2? That's pre-generics? (I lose track of such ancient history...) This probably won't work, then... You'll probably need to work with existential types.
精彩评论