Hi, I'm trying to make a cache mechanism wich stores the quotes from a stock market. This data get's refreshed after a period of time. First ideea was to make a HashMap with application scope wich get's refreshed by different threads. Second ideea is to make the cache mechanism in database.(but I think this one is slower) Any other ideeas or examples ? Maybe EJB ? It's got to work in JSP - Servlet architecture. Thanks for any help.