Hi, I am facing a situation where I need to rollback some state kept in session when user hits the back button at browser side, and clicks some link which triggers a server round trip. The usage scenario is as below: 1. User stays on page1, and the current state saved in session in state1 2. User clicks on a link in page1. At server side, the onclick() handler of the link change session state to state2, and set current page to be page2 by calling setResponsePage() 3. Now page2 is displayed at browser. User hits the back button to go back to page1. 4. User continues to hit a link in page1 to do something. Of course at server side, the session state will still be state2.
Now I am looking for an approach to change the session state to the value when page1 is first presented to user. I searched the mailing list archive and found the entry "http://www.nabble.com/Back-button-and-Database-rollback-to4124044.html#a4124044"; to be useful. However, as I am using wicket 1.3 which uses SecondLevelCacheSessionStore, the "addStateChange" approach does not take effect. So is there any other approaches for this problem? PS: Storing state in page instead of session solves the back-button problem, however I can not store state into page as my application is composed of many pages, and this state should be shared across these pages. Thanks. Robin
