Examples of java.nio.file.WatchKey.cancel()

java.nio.file.WatchKey.cancel()

Cancels the registration with the watch service. Upon return the watch key will be invalid. If the watch key is enqueued, waiting to be retrieved from the watch service, then it will remain in the queue until it is removed. Pending events, if any, remain pending and may be retrieved by invoking the {@link #pollEvents pollEvents} method after the key iscancelled.

If this watch key has already been cancelled then invoking this method has no effect. Once cancelled, a watch key remains forever invalid.

         }


         if (!keys.containsKey(key))
         {
            // key is no longer available in the keys Map. Cancel it
            key.cancel();
         }
         else
         {
            // reset key and remove from set if directory no longer accessible
            boolean valid = key.reset();

         }


         if (!keys.containsKey(key))
         {
            // key is no longer available in the keys Map. Cancel it
            key.cancel();
         }
         else
         {
            // reset key and remove from set if directory no longer accessible
            boolean valid = key.reset();

         }


         if (!keys.containsKey(key))
         {
            // key is no longer available in the keys Map. Cancel it
            key.cancel();
         }
         else
         {
            // reset key and remove from set if directory no longer accessible
            boolean valid = key.reset();

    WatchKey watchKey = watchPathKeyMap.get(dir);


    if (watchKey != null) {
      logger.log(Level.INFO, "- Cancelling " + dir);
      
      watchKey.cancel();
      watchPathKeyMap.remove(dir);
    }
  }
}

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