This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
I have a J2EE web application for reporting. When user logged in he/she can view a menu having different reports. Each report is associated with a filter page, where user can select some filter values and can view the report on the basis of selected filter values. The filter page is same for all reports. On the filter page there are select boxes into which values are populating from the database by running different queries for each select box (we says filter value). So, following steps are performing -
* Connecting to Database * Running Query * Setting returned records to bean * Display filter page by fetching records from bean
If user request for any other report, above steps are repeating again to populate filter page, which is obviously not a good design as connecting to database again and again is very expensive. So, I have decided to change the design.
I have decided to use OSCache to cache the filter values (Bean objects) at server (user�s session). So that, if user would go to see another report then a filter page with cached filter values will be presented to him/her. In this way we are not going to hit the database server again until user�s session expired.
I have gone through the documentation but still fighting to implement as the documentation, examples etc. are limited. I haven�t found any good example or help from the web.
I would appreciate if anybody helps me as it�s really urgent.