I would have a few questions regarding this implementation:
1. Are Filters applied before the service/resume calls are
invoked? If they are applied to both, then is it possible to
specify if a filter is to be applied only to resume() or only to
2. What is the state of the request scope (attributes and parameters)
at the start of the resume() call?
- Are the request parameters obtainable in resume(), too, or only in
- What is the state of the request attributes present at the
start of the resume() call?
a. The same as at the end of the preceeding resume/service method?
c. The same as at the end of the service method?
d. The same as at the start of the service method?
3. Is the resume() call carried out on the same thread as the wake()
call triggering it, or is it carried out on a separate thread?
Thanks in advance and best regards,
On Thu, 20 Sep 2007 11:24:42 -0700, Scott Ferguson wrote:
> The 3.1.3 snapshot includes a new implementation of Comet for Resin
> There's a sketch of an example at
> Javadocs are at
> The basic model is similar to the normal servlet, except there's a
> new service() and a resume() call in the AbstractCometServlet.
> The CometController is the main object that's passed from the servlet
> to your application comet code. Its main methods are wake(), close
> (), and setAttribute()/getAttribute().
> The CometController is thread-safe. As always, the ServletRequest
> and ServletResponse and the PrintWriter/ServletOutputStream are *not*
> thread-safe. You must not store the request/response or output in
> object or pass them to other threads. The only way other threads in
> your application can talk to the Comet request is through the
> CometController. Data is passed through get/setAttribute (which sets
> request.setAttribute in a thread-safe manner) and the servlet is
> resumed with wake().
> We'll cleanup the example in a bit to make a bit more sense.
> The 3.1.3 release has been delayed another week (due primarily to
> Quercus issues), so we're now aiming for the week of October 5.
> -- Scott
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