On Thursday, May 12, 2016 at 12:38:16 PM UTC+2, junaidp wrote:
>
> After reading the above conversation it looks like this a feature in GWT
> 2.8 with which we can at run time add/change a class at client side ..
> Is this true?
>
No.
> Coz I just try using GWT2.8 then running sdm , and then I just change some
> thing in a class
> like if before the class contains
> Window.alert("Hello");
>
> At run time i goes to the code and change it to Window.alert("Hello
> world");
> and then click the button which calls that class ...
> But I still get the message "Hello";
>
> to see the "Hello world" I need to refresh the application.
>
Yes, that's how SDM works. But refreshing the page in the browser is not
the same thing as restarting SDM.
> So i was just wondering if there is some way for the above thing in 2.8
>
No.
> Actually i have a requirement where we allow user to add/upload UI layouts
> at run time ,
>
> Jrebel wont help me as it only works with java , where as GWT client in
> sdm is javascript.
> tried dynamicUIBinder , it gives the layout at runtime but dont load any
> handlers etc.
>
> So I need a way where user can upload a Java UI class(GWT composite) with
> the layout + Handlers. which loads at run time , without restarting the
> application..
>
Good luck with that, it's going to be a long and probably painful journey.
> Is this what GWT 2.8 is providing or is there any way i can achive the
> above.
>
It's probably possible to run the GWT compiler on the server with the
uploaded files to produce a small GWT app with just that code. You'd need
some glue code to be able to load that small app into your "bigger" app and
have them talk to each other.
But most importantly, you need to run the GWT in a sandbox to make sure
uploaded files can't be used to access the server-side app or the machine
(if you take care to not JavaC the classes, that'd probably be through bugs
in the GWT compiler, but still)
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