JorgeCastilloPrz

public interface BookRepository {
  public List<Book> getAllBooks();
  public List<Book> getAllBooksFromUser(int userId);
  public List<Book> getAllBooksByCategory(BookCategory category);
  public Book getBook(int bookId);
  public Book getBookByName(String bookName);
  public void removeBook(int bookId);
  public void markAsCompleted(int bookId);
}

JorgeCastilloPrz

public void BookController {
    
    private static BookController instance = null;
    private BookRepository bookRepository = new PersistentBookRepository();
    
    protected BookController() {}

    public static BookController getInstance() {
        if(instance == null) {
            instance = new BookController();

JorgeCastilloPrz

public class ApplicationClass extends Application {

    private ObjectGraph objectGraph;

    @Override
    public void onCreate() {
        super.onCreate();
        objectGraph = ObjectGraph.create(getModules().toArray());
        objectGraph.inject(this);
    }

JorgeCastilloPrz

@Module(
        injects = {
                ApplicationClass.class,
                AbstractFontFactory.class,
                RobotoFontFactory.class,
                DataController.class,
                LocationController.class,
                RestAnimalProvider.class,
                MainActivity.class,
                TutorialActivity.class,

JorgeCastilloPrz

/**
 * A module for more generic or external dependencies wich doesnt require a {@link android.content.Context} or
 * {@link android.app.Application} to create.
 */
@Module(
        library = true
)
public class AppModule {

    @Provides

JorgeCastilloPrz

/**
 * A module for dependencies which require a {@link android.content.Context} or
 * {@link android.app.Application} to create.
 */
@Module(
        library = true
)
public class ContextModule {

    private Context appContext;

JorgeCastilloPrz

public class LocationController implements LocationListener {

    private static final int TWO_MINUTES = 1000 * 60 * 2;

    private Context context;
    private LocationManager locationManager;
    private String provider;
    private Location bestLocationUntilNow;

    @Inject

JorgeCastilloPrz

/**
 * Created by jorge on 3/17/14.
 */
public class MainActivity extends InjectedActivity {

    @Inject
    GoogleApiClient mGoogleApiClient;
    @Inject
    LocationController mLocationController;
    @Inject

JorgeCastilloPrz

/**
 * Created by jorge on 5/3/14.
 */
public class InjectedActivity extends FragmentActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        ((ApplicationClass) getApplicationContext()).inject(this);
    }

JorgeCastilloPrz

class GridingCoffeeMaker {
  @Inject Lazy<Grinder> lazyGrinder;

  public void brew() {
    while (needsGrinding()) {
      // Grinder created once on first call to .get() and cached.
      lazyGrinder.get().grind();
    }
  }
}