从Java调用Scala代码的“技巧性”？

Question

There is a Scala library (that only exists written in Scala) that I really want to use in my Java app. I am trying to evaluate whether I can do this or not without suffering any hidden gotchyas/caveats/pitfalls. So I went straight to the Scala FAQ, where they answer this very question (well, sort of):

Accessing Java classes from Scala code is no problem at all. Using a Scala class from Java can get tricky, in particular if your Scala class uses advanced features like generics, polymorphic methods, or abstract types.

I then found several other sites (such as this one ) that seem to indicate there is no problem in calling Scala from inside Java, as it is all compiled JVM bytecode.

So I have two very conflicting sources of information, and I'm stuck in the middle trying to determine what use cases make calling Scala from Java " tricky ", and which use cases are straight forward. Any ideas?

Answer 1

如果您要调用的scala库使用了“棘手的”功能，我想您可以将其包装在scala中，这样包装程序就不会向调用代码公开任何“棘手的”功能。