Main.java

import com.google.inject.Binder;
import com.google.inject.Guice;
import com.google.inject.Injector;
import com.google.inject.Module;
import com.google.inject.Scopes;
import com.google.inject.multibindings.MapBinder;

import javax.inject.Inject;

import java.util.Map;

public class Main
{
    public static void main(String[] args)
    {
        Injector injector = Guice.createInjector(new Module()
        {
            @Override
            public void configure(Binder binder)
            {
                binder.bind(Stats1.class).in(Scopes.SINGLETON);
                binder.bind(Stats2.class).in(Scopes.SINGLETON);
                binder.bind(Stats3.class).in(Scopes.SINGLETON);

                binder.bind(Updater1.class).in(Scopes.SINGLETON);
                binder.bind(Updater2.class).in(Scopes.SINGLETON);

                binder.bind(Exporter.class).in(Scopes.SINGLETON);

                MapBinder<String, Stats> mapBinder = MapBinder.newMapBinder(binder, String.class, Stats.class);
                mapBinder.addBinding("stats1").to(Stats1.class);
                mapBinder.addBinding("stats2").to(Stats2.class);
                mapBinder.addBinding("stats3").to(Stats3.class);
            }
        });

        Exporter exporter = injector.getInstance(Exporter.class);
    }


    public static interface Stats
    {

    }

    public static class Stats1 implements Stats {}
    public static class Stats2 implements Stats {}
    public static class Stats3 implements Stats {}

    public static class Updater1
    {
        @Inject
        public Updater1(Stats1 stats) {}
    }

    public static class Updater2
    {
        @Inject
        public Updater2(Stats2 stats2, Stats3 stats3) {}
    }

    public static class Exporter
    {
        @Inject
        public Exporter(Map<String, Stats> stats)
        {
        }
    }
}