On 3/6/07, Vincent Demay <[EMAIL PROTECTED]> wrote:
Hi,
If you are using plain js on client side, I think cometd is perfect to
you. With cometd you can publish in a channel an event on server side
(CometdPublisher - wicket-contrib-Dojo). On your client you subcribe to a
channel(CometdBehavior - wcd too) and when datas are published on server
side, a js method in triggered (client side). This js method is what you
want so it can contain code to update your GMap.
Take a look at www.cometd.org and
http://weblogs.java.net/blog/jfarcand/archive/2007/02/gcometd_introdu_1.htmland
in Wicket-contrib-dojo sources :
https://svn.sourceforge.net/svnroot/wicket-stuff/trunk/wicket-contrib-dojo/.
I started to integrate it in wicket-contrib-dojo (CometdBehavior,
CometdPublisher). But it is still under developpement, any contributions are
welcome ;)
I don't know xavier's pushing implementation but it can also feet to you
need ;)
My implementation is very simple and less efficient than cometd. It's
actually the client which is polling the server at a regular interval. The
only advantage over a pure javascript solution is that it's pretty well
integrated with wicket, so that you don't have to worry much about the
implementation. I also plan to provide a cometd implementation, based on
your work in WCD. But I need time to work on that, and for the moment I have
other priorities. But I will create an issue with my push implementation
attached in a moment, so that you can see if it can be of any use for you.
- Xavier
Cheers
--
Vincent Demay
http://www.demay-fr.net/blog/
Xavier Hanin a écrit :
On 3/6/07, Peter Neubauer <[EMAIL PROTECTED]> wrote:
>
> Hi there,
> I am trying to push out events that contain the moving locations of a
> users buddies, so I can update the GMap on the page using plain JS and
> the GMarkerManager.
>
> Right now I am using Pushlet for this, but that has the disadvantage
> that it is not integrated into Wicket, and it uses a generic broadcast
> mechanism, much like JMS subscribing to topics from JS.
>
> Is there any way to get this functionality working using Wicket, e.g.
> the GMap not being reloaded, just moving the markers on a pull/push
> interval?
>
> Thanks for any hints!
I'm also in need of such things, and I've started a thread about that last
week:
http://www.nabble.com/server-side-triggered-page-refresh-%28aka-push%29-tf3321420.html#a9234009
As you see I'd like to implement two ways to do that, one simple purely
wicket based, and another more scalable requiring dojo. In your case I don't
know much about your map, but with the implementation I propose you can send
javascript as you would on an AjaxRequestTarget, so I guess it should be ok.
I already have an first implementation (the simple one, pure wicket), but
last time I checked it wasn't working due to a bug in wicket (see
WICKET-343). But if you want I can share this implementation with you (I
think I will even create an issue in JIRA with the patch attached, even if
it doesn't work with the wicket 1.x branch right now).
- Xavier
/peter
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