Hi David, You are right. All the rows are coming from the database and if I ask the database to return me so many rows, everything will be kind of frozen.
Could you tell me a little bit more about how to do that? I'm not very good at using cvs (I have one from cygwin). I can use cvs or maven (as instructed on displaytag website) to download the source code. Where can I find your patch in those source codes? And do you have an example of using your patch? Thank you so much. >>> [EMAIL PROTECTED] 8/23/2005 1:22:42 PM >>> If your using that many rows you ought to look into using my serverside sort and paging patch that is now in cvs... im assuming all those rows are coming out of the database, with this patch you can only select, sort, and load the relevant rows into each viewable page of displaytag. -David > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:displaytag-user- > [EMAIL PROTECTED] On Behalf Of Thai Dang Vu > Sent: Tuesday, August 23, 2005 9:25 AM > To: [email protected] > Subject: [displaytag-user] Am I right? > > Hi everybody, > > I looked at the displaytag source code and realize some things (although I > don't understand everything there): > > - when displaytag gets our list (the one specified in the 'name' attribute > of display:table), it creates an iterator. when we go to a particular > page, displaytag calculates the start and end postions of the rows that > need to be displayed. For example, we are at page 9 and the page size is > 10, then start = (9-1)*pagesize + 1 and end = start + pagesize. So, with > an iterator, displaytag has only one choice to know which element in the > iterator is at the start position. That choice is counting from the > beginning of that iterator until we count to 'start". My question is 'why > don't we use an ArrayList instead of an Iterator so that we can go to an > element at any position directly?'. > > I created an example where my data (which have 2 columns, one is integer > and one is string)contains 60710 rows. I notice that after I sorted by the > string column, it took me a long time to go to the next page. > > > > ------------------------------------------------------- > SF.Net email is Sponsored by the Better Software Conference & EXPO > September 19-22, 2005 * San Francisco, CA * Development Lifecycle > Practices > Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA > Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf > _______________________________________________ > displaytag-user mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/displaytag-user > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.338 / Virus Database: 267.10.14/79 - Release Date: 8/22/2005 > ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ displaytag-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/displaytag-user ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ displaytag-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/displaytag-user
