I haven't tried it out with GIN / DI.
I am 'guessing' that it won't work , but I could be wrong.

--Sri


2009/10/29 skrat <dusan.malia...@gmail.com>

>
> Okay, that's kind of clear. Async Package (gateway class) looks nice,
> but how does it fit within Gin and DI?
>
> On Oct 26, 4:24 am, Sripathi Krishnan <sripathi.krish...@gmail.com>
> wrote:
> > Maybe somebody from google will confirm this, but I doubt you are going
> to
> > achieve code splitting by using proxies or interfaces, or by using any
> > generic parameterized approach.
> >
> > A piece of code will end up in split-point-1.js *only if* it is always
> being
> > used from within GWT.runAsync(). If a class can be used from two separate
> > GWT.runAsync() method blocks, it is going to end up in the left-overs
> block.
> >
> > Now here is my understanding of the situation (of course I may be wrong)
> -
> >
> >    - You have two instances of the class AsyncLoader, say LoaderA and
> >    LoaderB, with two unique providers - say ProviderA and ProviderB
> >    - GWTC recognizes that there will be two GWT.runAsync() blocks, which
> is
> >    why it creates two split points
> >    - But it cannot guarantee that LoaderA will always get ProviderA, and
> so
> >    it should put the code for ProviderA in split-point1.js
> >    - So, it knows that the entry point is not using ProviderA or
> ProviderB -
> >    which is why it is not in the initial download fragment. But it cannot
> >    guarantee it will always be used from a unique code fragment, which is
> why
> >    it ends up in the left-over fragment.
> >    - When you use the inline implementation, you will hard-code the
> actual
> >    provider - and hence things will work.
> >
> > The only pattern that works well is Googles recommended "Async Package
> > Patter". See this
> > presentation<
> http://dl.google.com/io/2009/pres/Th_1045_TheStoryofyourCompile-Readi...>.
> >
> > --Sri
> >
> > 2009/10/25 skrat <dusan.malia...@gmail.com>
> >
> >
> >
> >
> >
> > > I'm trying to split my code using sort of proxies, where I reuse
> > > parametrized RunAsyncCallback class. This class has basically  just
> > > reference to Gin Provider of the real module class. When I use this
> > > for loading one module, it works perfectly, and I'm getting nice and
> > > correct location of split point in report. When I use this second
> > > time, loading different module proxy which uses the same
> > > RunAsyncCallback class, both split points happen to be in Leftovers
> > > code. Yet, split point on my proxies are still listed in report, but
> > > with the same minimal (386) size.
> >
> > > I tried to use inline implementation of RunAsyncCallback instead, and
> > > surprise! Split points worked correctly again.
> >
> > > Here is my parametrized RunAsyncCallback class:
> >
> > > class AsyncLoader implements RunAsyncCallback {
> >
> > >    private ProjectPresenter parent;
> > >    private PlaceManager placeManager;
> > >    private Provider<? extends AbstractLabeledPresenter> real;
> >
> > >    AsyncLoader( ProjectPresenter parent,
> > >                 Provider<? extends AbstractLabeledPresenter> real,
> > >                 PlaceManager placeManager ) {
> >
> > >        this.placeManager = placeManager;
> > >        this.parent = parent;
> > >        this.real = real;
> > >    }
> >
> > >    @Override
> > >    public void onFailure(Throwable reason) {
> > >        // TODO Auto-generated method stub
> >
> > >    }
> >
> > >    @Override
> > >    public void onSuccess() {
> > >        AbstractLabeledPresenter mod = real.get();
> > >        parent.addModule( mod );
> >
> > >        if ( mod.hasToken( History.getToken() ) ) {
> > >            mod.revealDisplay();
> > >            parent.show(mod);
> > >            placeManager.fireCurrentPlace();
> > >        }
> >
> > >    }
> > > }
> >
> > > This is inner class defined in AbstractLabeledPresenter, that's the
> > > same one I'm proxying and loading with GWT.runAsync. @Inject
> > > annotation is not present because injection is done on proxy class
> > > which in turn instatiates AbstractLabeledPresenter$AsyncLoader.
> >
> > > Not sure whether this is bug, but I can't see any linking or any other
> > > rason why that code should end up in Leftovers and have empty, zero
> > > size split points.
> >
>

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