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- Dictionaryin·val·i·date/inˈvaləˌdāt/
verb
- 1. make (an argument, statement, or theory) unsound or erroneous. Similar Opposite
- 2. deprive (an official document or procedure) of legal efficacy because of contravention of a regulation or law: "a technical flaw in her papers invalidated her nomination" Similar Opposite
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Jun 21, 2011 · If however you do stuff that exceeds like 10ms - calling Invalidate() does not cause a redraw near real time but only after Mouse events slow down. It helps to then issue an Update() to force a re-draw. The cause seems to lie in the dispatcher and dispatch priorities. Draw is highest, Mouse-events folow and invalidate is lowest.
I've implemented the OnClickListener() for the button and call the game.invalidate(). But it doesn't seem to redraw the custom view immediately upon button click. I have to exit the app( back button) then reopen the app to see the redraw. I've read other posts regarding the invalidate() not redrawing the view immediately.
Jun 27, 2013 · Both functions invalidate the window. The WM_PAINT occurs at the normal time (no other messages in the application queue) in both cases. If you want the paint to be done immediately then calling either RedrawWindow(win, NULL, NULL, RDW_INVALIDATE | RDW_UPDATENOW) or InvalidateRect followed by an UpdateWindow will do that.
Apr 29, 2019 · An excerpt from Wiki on Cache invalidation - "Cache invalidation is a process in a computer system whereby entries in a cache are replaced or removed." But, why on earth do we need to invalidate Ca...
You might want to invalidate destination buffer after a DMA transfer again (that's right, second time). If chip in question has prefetch it could fetch data back to cache while DMA is working. So sequence might be: after first invalidate prefetch put data in cache again -> DMA override data in memory -> cache has data different than memory and cache is marked as having valid data.
Oct 8, 2012 · Hibernate actually define an interface and allows to plug a cache implementation, depending on your needs (the cache type, the supported strategies, the cluster support). Do bear with me as I've never done any caching before. Depending on the complexity of your needs, this might not be a simple task. Maybe you should use or look at existing ...
Jan 8, 2013 · When a user has an associated HttpSession object and then want to "log out" of the application you would invalidate that HttpSession which in turn would remove it from the map that the ServletContext
Sep 8, 2011 · Invalidate is semantically different from redrawing in that it usually only marks something to be redrawn later, as opposed to redrawing at call-time. The idea is that when several possibly overlapping areas are invalidated, the amount of redrawing at a later time can then be made equal to only the sum of non-overlapping areas.
May 5, 2013 · For certain having improperly formatted page tables will only manifest on a TLB invalidate, so that MMU mappings are re-fetched from the tables via a walk. Finally, you should flush the D cache and drain the write buffer to ensure consistency with memory. You may wish to have a memory barrier as well.
So every time you change the "original" data (uuid, a) (say the normalized data in a database from which b was computed) on which the computed value of type b depends then you can invalidate the cache that contains b if you mutate any value a on which the computed b value depends, because based on the Set (uuid) in the Writer Monad you can tell ...
