LOL Thomas.[?] That was great example to determine async calls.
anyway what you are saying is right. Its a bad design to have a method which returns something and then make async call which changes the state of some variable. -- Aditya On Wed, Jun 16, 2010 at 6:13 PM, Thomas Broyer <t.bro...@gmail.com> wrote: > > > On Jun 16, 1:09 pm, Magnus <alpineblas...@googlemail.com> wrote: > > Hi, > > > > because I cannot access a variable in the enclosing block from within > > an AsyncCallback method I found the following workaround with a class > > global variable, which I find very unpretty. How can one do this > > better? > > What is it that you don't understand in "asynchronous"? > > I mean, your getUsr call will *always* end after the "return > tmp_str_usr" statement. So, on the first call and until the server > responds and you AsyncCallback is called, you'll get the empty string > (initial value of the field); then AsyncCallback will change its > value, and on all subsequent calls until the server responds to the > new requests (and AsyncCallback will be called again) you'll get that > value. > > When you ask your wife to get you some beer, the beer won't be there > until your wife come back from the kitchen; and while she's gone, the > football match isn't paused and life continues. > > -- > You received this message because you are subscribed to the Google Groups > "Google Web Toolkit" group. > To post to this group, send email to google-web-tool...@googlegroups.com. > To unsubscribe from this group, send email to > google-web-toolkit+unsubscr...@googlegroups.com<google-web-toolkit%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/google-web-toolkit?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
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