Reusable

Reusable.java

@Component(modules = MyModule.class)
public interface ComponentA {

    OkHttpClient a();

    SubcomponentB subcomponentB();

    SubcomponentC subcomponentC();

}

@Module
public class MyModule {

    @Reusable
    @Provides
    public OkHttpClient a() {
        return new OkHttpClient();
    }

}

@Subcomponent
public interface SubcomponentB {

    OkHttpClient a();
    
}

@Subcomponent
public interface SubcomponentC {

    OkHttpClient a();

}

public class OkHttpClient {

    public OkHttpClient() {
    }

}

public class Main {

    public static void main(String[] args) {
        ComponentA componentA = DaggerComponentA.create();
        System.out.println(componentA.subcomponentB().a());
        System.out.println(componentA.subcomponentC().a());
    }

}