On Performance and Java Interoperability: Clojure vs. Scala

Question

I have already read various accounts of Clojure vs. Scala and while I realize that both have their place. There are a few considerations that I haven\'t acquired a complete exp

Answer 1

On interoperability, I can't speak for Clojure, but I would expect it to be in a similar situation as Scala.

It is trivially easy to call Java from Scala.

It is easy to call Scala from Java as long as you conform your external API to the common points between Scala and Java. For example, a Scala object is used in some ways like static methods in Java, but it's not the same thing. Scala classes may compile to a number of classes with names that look funny in Java.

You will not want to mix and match much. Building component in Scala or Clojure that uses lots of Java libraries is very feasible. You can of course call into this component from Java, but what you are not going to want to do is try to consume a Scala API intended for use by Scala programs from Java.

SVN claims to be "CVS done right". In my view, Scala is Java done right.