Le 22/09/16 à 10:42, Doan Tin Nghia a écrit : > Thanks. I need it for paging (same issue like > https://sourceforge.net/p/ldap-sdk/mailman/message/29370418/)
Ok, but let me ask you aain : why do you technically need to know how many entries you will get ? This information is totally spurious, unless you want to tell your client "you are going to get 1 238 654 entries". Most of the time, and I saw that many, many times by people trying to implemented an web page with back and forth buttons, the answer is "But, but, but, I *NEED* to know how many elements I wil get in order to correctly design my web page, otehrwise I will not be able to know if I will have a next page !!!". This is typically wrong. If you decide to show N elements in one page, and have a Next button, then just poll 2xN elements from the backend, and if you get more than N elements, you know that you will have a Next button. FTR, those using a RDBMS are frequently doing a selectcount(*) before doing the real select for the exact same reason, and this is STUPID : they are doing the exact same request *TWICE*, overloading teh server. Be smart.
