Re: MVC and Code Splitting

On 1/15/2012 4:12 AM, Thomas Broyer wrote:
>
>
> On Saturday, January 14, 2012 8:12:44 PM UTC+1, Xybrek wrote:
>
> In my application there are many views and controllers, however not all
> are needed at once, mostly the view that is loaded depends on the URL
> fragment(s).
>
> In what way or pattern a Controller and View be wrapped in a
> GWT.runAsync so that only controllers and views needed are loaded?
>
> I just need to get some ideas on how I will implement this.
>
> In my case, I have a home-grown MVC. My application parse the Url
> fragment and then show() the appropriate view. In which the
> parameter of
> the show() function is a key String that will then be used to get the
> views that are stored in a HashMap.
>
> Everything, the Controllers, Models and Views are instantiated during
> onModuleLoad()
>
> Any ideas?
>
>
> Start by "lazy instantiating" your components, then throwing runAsync in
> will become much easier.
>
> If you have interfaces, you could try AsyncProxy instead; but if you
> want lazy-loading, start by architecturing your app around that pattern.
>
> Before:
> // in onModuleLoad
> map.put("foo", createFoo());
> map.put("bar", createBar());
> // then retrieving the objects:
> return map.get(key);
>
> After:
> //when retrieving the objects
> Object o = map.get(key);
> if (o == null) {
> if ("foo".equals(key)) {
> o = createFoo();
> } else if ("bar".equals(key)) {
> o = createBar();
> }
> map.put(key, o);
> }
> return o;
>
> Adding runAsync would mean changing the getViewFromToken from
> synchronous to asynchronous, with a RunAsyncCallback as an additional
> argument.
>
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That's a nice pattern. I did applied this approach and works. However,
my problem is not solved yet, because the GWT-Recaptcha is still causing
request to a external site even if I have used that approach.

I am yet to understand how to fix this thing.

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