Why are you saving the byte arrays in the page instance?
I show these files to user with read-only permission , so this user can just view these files ,the owner of these files can delete them anytime , so If I go to database , upon user click , this file might have been deleted by the user , or when user tries to access this file the owner might be deleting this file , to avoid such issues I am loading all the bytes to page instance , so no concurrent access issues . to save them inside temp folders can I ask the page to give some identifier which I can use to name the folder which contains all the files ? or do I have to create my own identifier ? jthomerson wrote: > > Why are you loading the files from the DB before the user asks for them > (clicks the download link)? > > Why are you saving the byte arrays in the page instance? If you really > must > load them from the DB before the user clicks the download link, save them > to > a temp file and save only the path of the file in the page (like Igor > originally said). > > -- > Jeremy Thomerson > http://www.wickettraining.com > > > > On Mon, Oct 19, 2009 at 2:40 PM, fachhoch <fachh...@gmail.com> wrote: > >> >> I have several pages which has links to uploaded files to download, I >> load >> this from database and save it inside page instance as instance variable >> . >> When user clicks on the download link I retrieve the byte array from the >> page instance and call download. Several user have different >> instances >> of same pages and all these pages have these huge files byte[] . >> Sure this will cause Outof memory issues. >> To resolve this I have to use temp folder , >> every time a page instance gets created I have to create temp folder >> to >> save these uploaded files bytes with a proper name so that I can know >> this >> folder is for this user and this page and this instance. I am asking >> do >> I >> have to create a naming factory which names the folder for every page >> instance ? or is there anything available which I can use a as a >> folder >> name? >> >> >> >> fachhoch wrote: >> > >> > I show these files in almost all my pages.So every page before it >> loads >> > has to create all these files in temp folder , please suggest me what >> > should be the identifier to recognize these files ,I actually have >> these >> > files inside PancelCachingTab , and this tab gets loaded only when >> user >> > clicks on on it for the first time. >> > >> > >> > >> > igor.vaynberg wrote: >> >> >> >> store them in a temp directory and only give your page the filename. >> >> >> >> -igor >> >> >> >> On Mon, Oct 19, 2009 at 10:55 AM, tubin gen <fachh...@gmail.com> >> wrote: >> >>> I have some huge files upto 50Mb in side my page instance , I >> have >> >>> to >> >>> save them in page instance and I cannot reload it everytime from >> >>> database >> >>> becasue other users might delete the file . >> >>> >> >>> I am getting java.lang.OutOfMemoryError , only way I can resolve >> this >> >>> is >> >>> increasing heap size but Is this a bad idea storing files upto 50Mb >> >>> inside >> >>> page instance ? >> >>> >> >> >> >> --------------------------------------------------------------------- >> >> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org >> >> For additional commands, e-mail: users-h...@wicket.apache.org >> >> >> >> >> >> >> > >> > >> >> -- >> View this message in context: >> http://www.nabble.com/uploaded-files-in-page-instance-tp25962716p25964309.html >> Sent from the Wicket - User mailing list archive at Nabble.com. >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org >> For additional commands, e-mail: users-h...@wicket.apache.org >> >> > > -- View this message in context: http://www.nabble.com/uploaded-files-in-page-instance-tp25962716p25964541.html Sent from the Wicket - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
