I am trying to create an R function that taps into my JAVA code.

I have an abstract class, let's say StudentGroup, that has abstract methods, and one method "getAppropriateStudentGroup" which returns (based on config) a class which extends StudentGroup. This allows calling classes to behave the same regardless of which StudentGroups is actually appropriate.

1) How can I use rJava to call getAppropriateStudentGroup?

and 2) How can I call the methods on the returned class?

Thank you!