Thanks very much ...
On Apr 29, 6:17 pm, Fred Faber <ffa...@faiser.com> wrote:
> This is a problem we've dealt with by using either assisted injection or a
> setter method.
>
> To use the former, the pattern is this:
>
> // Some common marker interfaces
> interface View { }
> interface Presenter { }
>
> // A common factory interface
> interface ViewFactory<P extends Presenter, V extends View> {
> V create(P presenter);
>
> }
>
> // You can also do this based on a subclass, etc
> interface YourView extends View {
> //...define its methods
>
> interface YourViewFactory extends ViewFactory<YourPresenter, YourView> { }
>
> }
>
> class YourPresenter {
> private final YourView view;
>
> @Inject(YourViewFactory factory, ...) {
> this.view = factory.create(this);
> }
> ...
>
> }
>
> Depending on your abstraction needs, you can collapse / pull up the
> interface definitions as you wish.
>
> The most important thing here IMO is to keep the presenter free of GWT
> logic, and as long as you do that, your unit testing of the presenter can
> be done using plain testing code (i.e., no GWT testing code is necessary).
>
> Some folks don't mind having the "presenter" variable non-final in the
> view, and define a setter() method on the view:
>
> class YourPresenter {
> private final YourView view;
>
> @Inject(YourView view, ...) {
> this.view = view;
> view.setPresenter(this);
> }
> ...
>
> }
>
> There is more detail in this GWT issue, fwiw:
> http://code.google.com/p/google-web-toolkit/issues/detail?id=6151
>
> Fred
>
>
>
>
>
>
>
> On Sat, Apr 28, 2012 at 2:21 PM, Adio <fireball...@gmail.com> wrote:
> > Hi every one, i am totally new to Guice - In DI frameworks in general
> > - . Now i am facing a dilemma witch is how to bind and create with
> > guice object that has dependency injection ? and here is what i mean
>
> > @Inject
> > public class A {
> > private B b ;
>
> > public A(B b){
> > this.b=b;
> > }
> > }
>
> > public class B {
>
> > private A a ;
>
> > @Inject
> > public B(A a){
> > this.a = a;
> > }
>
> > and here is a real situation of my problem, actually it is the MVP GWT
> > pattern design using UiBinding.
>
> > public class LoginPresenterImpl implements LoginPresenter {
>
> > private HasHandlers eventBus;
> > private LoginFormErrorMessages errorMessages;
> > private UserAccountServiceAsync async;
> > private LoginView loginDisplay;
>
> > @Inject
> > public LoginPresenterImpl(UserAccountServiceAsync serviceAsync,
> > LoginView loginview, HasHandlers handlerManager,
> > LoginFormErrorMessages loginFormErrorMessages) {
> > async = serviceAsync;
> > loginDisplay = loginview;
> > eventBus = handlerManager;
> > errorMessages = loginFormErrorMessages;
> > }
>
> > ......
>
> > }
>
> > and the LoginView is :
>
> > public class LoginViewImpl extends Composite implements LoginView {
>
> > @UiTemplate("LoginView.ui.xml")
> > interface LoginViewUiBinder extends UiBinder<DecoratorPanel,
> > LoginViewImpl> {
> > }
>
> > @UiField
> > TextBox username;
> > @UiField
> > PasswordTextBox password;
> > @UiField
> > Button login;
> > @UiField
> > Button newRegistration;
> > @UiField
> > Label warningLabel;
>
> > private LoginViewUiBinder binder =
> > GWT.create(LoginViewUiBinder.class);
>
> > @Inject
> > private LoginPresenter loginPresenter;
>
> > public LoginViewImpl() {
> > initWidget(binder.createAndBindUi(this));
> > }
> > ......
>
> > }
>
> > how to binde the view ??? and the Presenter ?
>
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