I thought about using cookies, but some parameters may change throught the whole session. Let's say i am view today's news, very likely i want to read yesterday's news. So i will pull all today's and yesterday's news into result set and keep them in session, but presenting today's news to users. If users request for yesterday's news, i just pull the information from the session, no queries are performed. This can improve the effieciency. Is there any design
pattern can acheive this purpose?