How to create an interface if the class has a nested class

Question

I have the following class
public class SampleImport{
public SampleResult import (InputSource xml) {
SampleResult sampleResult = new SampleResult();
          //do something
          return sampleResult;
public static class SampleResult {
          public final String sampleName;
          public SampleResult (String s) {
               sampleName = s;
I would like to create an interface for this class for teh following method signature 'SampleResult import(InputSource(xml))', how would I create it ?
Any help is appreciated,
TIA,

Answer 1

public interface Nameable {
    String getName();
public interface Importable {
    Nameable importSource (InputSource xml);
public class SampleImport implements Importable {
    @Override public SampleResult importSource (InputSource xml) {
        SampleResult sampleResult = new SampleResult("foo");
        //do something
        return sampleResult;
    public static class SampleResult implements Nameable {
        public final String sampleName;
        public SampleResult (String s) {
            sampleName = s;
        @Override public String getName() {
            return sampleName;
}edit: er, you do know import is a keyword?