将抽象/通用对象传递给方法

Question

I have an abstract class:

public abstract class AdvancedModel<T, K>

that has two subclasss:

public class TrackModel extends AdvancedModel<Track, Toptracks>

and

public class ArtistModel extends AdvancedModel<Artist, Topartists>

In a seperate Class called Evaluation, I want to have a method that takes in either of these objects and do stuff with it. Is there a way to do this using the generic type, or will I have to have the same method twice using the two different classes as parameters?

EDIT

I tried

private <T, K> float runModel(AdvancedModel<T, K> testEngine)

which seems to work when i declare the objects earlier like:

AdvancedModel<Track, Toptracks> name = new TrackModel(10, 17);

float result = runModel(name);

This is however causing issues with other methods later on. For example, I have an other method which i want to either call getArtist() or getTrack() from K, depending on whether K is Toptracks or Topartists?

Answer 1

You should add type parameters to your method declaration as following:

public <T, K> void doStuffWithAdvancedModel(AdvancedModel<T, K> model) {
    // do stuff here
}