[jboss-user] [JBossCache] - TreeCache: How to write atomic updates?

hi all I am trying to do the following from two or more hosts that are part of a JBossCache group. (I am using JBossCache 1.4) If exists(FQN, key) { lock FQN value = get(FQN, key) value-- if (value == 0) { remove(FQN, key) } else { put(FQN, key, value) } unlock FQN } There is another thread of code that will increment the value. increment and decrement may happen on any of the hosts. My intention is only to lock the map and i guess that is only achieved by locking the FQN node. Please correct me if i am wrong. My question is "how to explicitly lock and unlock the nodes?" Javadoc for TreeCache._lock() has one-liner saying "Should not be called." I see _releaseAllLocks() and releaseAllLocks(). And is there a mechanism for timing-out the lock. That is what happens if the process/thread that locked the node dies? thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3974273#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...