Hello, I need an application level class for general locking with an interface something like public void lock(Object o, User u); public void unlock(Object o, User u); // u for verification public boolean isLocked(Object o); public List getUserLocks(User u); public void releaseAllUserLocks(User u); The issue if the all-too-familiar "what happens when the user just hangs around". If i make this an application-scoped component, how should I handle this? If I put a destroy-methdod that calls releaseAllUserLocks on a session based component, does it detect the session has ended (probably not) or is it detected only when accessed the next time? Do I have to maintain a sessionid->user mapping somewhere in the servlet context and use a session-ended-listener? Even then, can I access the seam component from there? Any other options? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4077138#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...