Thanks Rvanlaak. I'll check those links.
On Apr 23, 3:52 pm, Rvanlaak <[email protected]> wrote: > For a chat app the Comet principal is needed. I've had the same > problem, so I would really advise you to look at the GWTEventService > library. That lib supports your needs out of the box, and is GWT 1.6.4 > compatible. Start using the lib is kinda tough, but you'll don't > regret it! > > Take a look athttp://code.google.com/p/gwteventservice/for more > details, and a very clear Wiki. If your using the GWT Eclipse plugin, > i've got an already working project with it available at Issue 4. Take > a look athttp://code.google.com/p/gwteventservice/issues/detail?id=4 > > On Apr 23, 12:01 pm, Vitali Lovich <[email protected]> wrote: > > > Seriously doubt it's a hosted mode mode issue. Which browser did you test > > web-mode with? Hosted mode actually launches a version of IE6, so using FF > > or IE7 may present different issues (for instance they might have a raised > > AJAX connection limit) > > > The issue is purely on the client side. Are you calling getEvents (the one > > that sends of the request to the server) on the client-side more than once? > > > On Thu, Apr 23, 2009 at 4:44 AM, [email protected] > > <[email protected]>wrote: > > > > Well, it really looks like a bug, cause when i > > > compile it to browser it works properly ( meanwhile )))) ). > > > Thanks for your answers. > > > > On Apr 23, 10:05 am, Salvador Diaz <[email protected]> wrote: > > > > As Vitali said, there are some common pitfalls when trying to > > > > implement something along the lines of whatyou're trying to do. > > > > There have been plenty of discussions related to chat implementations > > > > and server-push. You might want to look at this docs: > > >http://docs.codehaus.org/display/JETTY/GWT+RPC+Exampleshttp://code.go.... > > > .. > > > > And also comment on this bug if you have any problems or even if you > > > > succeed:http://code.google.com/p/google-web-toolkit/issues/detail?id=267 > > > > > Hope it helps, > > > > > Salvador > > > > > On Apr 23, 9:40 am, "[email protected]" <[email protected]> > > > > wrote: > > > > > > I open two clients, and trying to send a message from one to another. > > > > > So i have two requests hanging on server's side, and the third one > > > > > trying to send the message. > > > > > the server side is like this : > > > > > > @Override > > > > > public ArrayList<Event> getEvents( Integer sessionId ) > > > > > { > > > > > UserInfo user = getUserById( sessionId );; > > > > > ArrayList< Event > events = null ; > > > > > > if( user != null ) > > > > > { > > > > > if( user.events.size() == 0 ) > > > > > { > > > > > try > > > > > { > > > > > synchronized( user ) > > > > > { > > > > > user.wait( 20*1000 ); > > > > > } > > > > > } > > > > > catch ( InterruptedException ignored ) > > > {} > > > > > } > > > > > synchronized( user ) > > > > > { > > > > > events = user.events; > > > > > user.events = = new > > > > > ArrayList<Event>(); > > > ; > > > > > } > > > > > } > > > > > return events; > > > > > } > > > > > > And the sendEvent() on the server side is like this : > > > > > > @Override > > > > > public void sendEvent( Integer senderId, Integer recieverId, > > > String > > > > > message ) > > > > > { > > > > > System.out.println( senderId + "entered the sendMessage > > > > > method" ); > > > > > > UserInfo reciever = getUserById( recieverId ); > > > > > MessageEvent me = new MessageEvent( senderId , message > > > ); > > > > > > if( reciever != null ) > > > > > { > > > > > synchronized( reciever ) > > > > > { > > > > > reciever.events.add( me ); > > > > > reciever.notifyAll(); > > > > > } > > > > > } > > > > > } > > > > > So I have two clients opened in hosted mode. For debugging > > > > > i put System.out.println( senderId + "entered the sendEvent method" ); > > > > > command at the enter > > > > > to sendEvent() method. And the message "senderId entered the sendEvent > > > > > method" appeared, only when > > > > > one of the clients exited the getEvents(). So maybe the problem is > > > > > that both clients are opened at the same > > > > > computer, or maybe it's because of hosted mode ? > > > > > > On Apr 22, 11:56 pm, Vitali Lovich <[email protected]> wrote: > > > > > > > Most browsers only support 2 outstanding AJAX events - that may be > > > what you > > > > > > are running into. Without knowing what other calls you make, I > > > cannot make > > > > > > a recommendation. > > > > > > > One thing that does come to mind is that I hope you only call > > > getEvents once > > > > > > on startup. > > > > > > > On Wed, Apr 22, 2009 at 4:47 PM, [email protected] > > > > > > <[email protected]>wrote: > > > > > > > > Hi. > > > > > > > I'm trying to implement chat on my GWT app. So client has > > > getEvents() > > > > > > > function implemented like this : > > > > > > > > public void getEvents( ) > > > > > > > { > > > > > > > networkSvc.getEvents( > > > > > > > new AsyncCallback< ArrayList<Event> >() > > > > > > > { > > > > > > > public void onSuccess( ArrayList< > > > Event > > > > > > > > events ) > > > > > > > { > > > > > > > handleEvents( events ); > > > > > > > networkSvc.getEvents( this > > > ); > > > > > > > } > > > > > > > public void onFailure( Throwable > > > caught ) > > > > > > > { > > > > System.out.println("eventListner " + > > > > > > > caught ); > > > > > > > } > > > > > > > } > > > > > > > ); > > > > > > > } > > > > > > > > This func in an endless loop with the server . > > > > > > > at the server side getEvents goes to sleep for 30 sec or till > > > events > > > > > > > approaching. > > > > > > > The second function is sendEvent() function. > > > > > > > As i see, i can't send an event to server while the server > > > processing > > > > > > > the previos request. > > > > > > > I mean it looks like the sendEvent() waits till the getEvents() > > > gets > > > > > > > the response, > > > > > > > and just after that it sends its own request. > > > > > > > Is that right, or there is some bug in my algorithm ? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. 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