You want to use App Engine cron:

http://code.google.com/appengine/docs/java/config/cron.html



On Mon, Aug 16, 2010 at 6:57 PM, HIRAK <[email protected]> wrote:

> Hi,
> I am trying to implement a feed reader of my own using google app
> engine.
> Now, I dont want to parse the feed xml each time I get a request.
> So there should be some kind of caching of feeds.
>
> For caching, I am using the JDO persistencemanager.
>
> But I am facing problem, trying to refresh the cache at certain
> intervals. I tried with Quartz scheduler and also with Java timer.
> But as appengine doesn't allow users to spawn threads, both the ways
> failed.
>
> Could anybody please give me some hint, on how to schedule the feed
> caching activity.
>
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-- 
Ikai Lan
Developer Programs Engineer, Google App Engine
Blog: http://googleappengine.blogspot.com
Twitter: http://twitter.com/app_engine
Reddit: http://www.reddit.com/r/appengine

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