To create a cluster-wide, named mutex, simply lock a key in a cache with an infinite wait time. Note that a key can be locked even though the key does not actually exist in the cache. This example implements a non-recursive mutex.
String sMutexName = "myNamedMutex"; NamedCache cache = CacheFactory.getCache(sCacheName); try { // acquire the Mutex cache.lock(sMutexName, -1); // do something [COH33UG:...] } finally { // release the Mutex cache.unlock(sMutexName); }