How would one do dependency injection in scala?

Question

I'm still at the beginning in learning scala in addition to java and i didn't get it how is one supposed to do DI there? can or should i use an existing DI library, should it be done manually or is there another way?

Answer 1

Dependency Injection itself can be done without any tool, framework or container support. You only need to remove news from your code and move them to constructors. The one tedious part that remains is wiring the objects at "the end of the world", where containers help a lot.

Though with Scala's 2.10 macros, you can generate the wiring code at compile-time and have auto-wiring and type-safety.

See the Dependency Injection in Scala Guide

Answer 2

I haven't done so myself, but most DI frameworks work at the bytecode level (AFAIK), so it should be possible to use them with any JVM language.