I couldn't tell from Mark's question if he really was referring solely to the cache in CF, since he moved on to "the materialized view option", which would of course not be "in CF". But if, as Kai does, we read this to mean Mark is asking how to clear the query cache in CF, there is indeed a way, and it doesn't involve any API call. Sadly, it's one of the worst-named (and I think hardly-known) tags:
CFOBJECTCACHE. Yep, that's what you use, as <cfobjectcache action="clear">. That's the only attribute and value, and the tag has no other function but to clear the query cache. So, yes, Mark, you could certainly set the cache to be cleared every hour by doing that in a schedule task. But I'll share another thought: that will wipe out the entire query cache (yours, and that of all other apps on the entire CF server/instance), which is pretty heavy-handed (unless you're all on your own). Perhaps instead what you want is that the cache not last per a time from the first time it's cached (which is what the cachedwithin attribute on cfquery does) but instead to cache "as of a given time", which is what the cachedafter attribute does. Check that out (it's a little tricky to get just right), and see if that may not be less of a hammer. Hope that helps. /charlie From: cfaussie@googlegroups.com [mailto:cfaus...@googlegroups.com] On Behalf Of Kai Koenig Sent: Wednesday, May 19, 2010 2:07 AM To: cfaussie@googlegroups.com Subject: Re: [cfaussie] schedule a cached queries refresh Just a random thought (with me _not_ having checked if a method exists) for a global refresh - Admin API, runtime.cfc maybe? And then a scheduled task running against a cfm page executing it? Cheers Kai Here is a nice practical post about optimising code: http://www.webapper.com/blog/index.php/2009/08/04/improve-coldfusion-performance-by-10 00x-believe-me-its-possible/ It made me wonder if there is a way to schedule a cached queries refresh. I mean have it happen on the hour whether or not a page is visited. I know there is the materialized view option but I dont know how to get an error message when the view didnt recreate itself. Is there a simpler way? -- You received this message because you are subscribed to the Google Groups "cfaussie" group. To post to this group, send email to cfaus...@googlegroups.com. To unsubscribe from this group, send email to cfaussie+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/cfaussie?hl=en.
