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

java.nio.file.WatchKey.reset()
Resets this watch key.
If this watch key has been cancelled or this watch key is already in the ready state then invoking this method has no effect. Otherwise if there are pending events for the object then this watch key is immediately re-queued to the watch service. If there are no pending events then the watch key is put into the ready state and will remain in that state until an event is detected or the watch key is cancelled. @return {@code true} if the watch key is valid and has been reset, and{@code false} if the watch key could not be reset because it isno longer {@link #isValid valid}

        for (WatchEvent<?> event : key.pollEvents()) {
          if (event.kind() == ENTRY_MODIFY) {
            System.out.println("Home dir changed!");
          }
        }
        key.reset();
      }
    } catch (IOException | InterruptedException e) {
      System.out.println(e.getMessage());
    }
  }

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            watcher.handleDeleteEvent(key, (Path) event.context());
          }
        }


        /* Reset the Key to get more events later */
        if (!key.reset()) {
          for (DirectoryWatcher watcher : watchers) {
            watcher.handleKeyInvalid(key);
          }
        }
      }

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            key.cancel();
         }
         else
         {
            // reset key and remove from set if directory no longer accessible
            boolean valid = key.reset();
            if (!valid)
            {
               keys.remove(key);
            }
         }

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                  {
                     logger.log(Level.INFO, "Detected changes in repository [" + events.iterator().next().context()
                              + "].");
                     dirty = true;
                  }
                  key.reset();
                  key = watcher.poll();
               }


               if (dirty)
               {

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                    x.printStackTrace();
                }
            }


            // reset key and remove from set if directory no longer accessible
            boolean valid = key.reset();
            if (!valid) {
                LOGGER.debug("Removing key " + key + " and dir " + dir + " from keys");
                keys.remove(key);


                // all directories are inaccessible

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            key.cancel();
         }
         else
         {
            // reset key and remove from set if directory no longer accessible
            boolean valid = key.reset();
            if (!valid)
            {
               keys.remove(key);
            }
         }

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            }


            // Reset the key -- this step is critical to receive
            // further watch events. If the key is no longer valid, the directory
            // is inaccessible so exit the loop.
            if (!key.reset()) {
                break;
            }
        }
    }
}

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                    Path name = dir.resolve(ev.context());
                    if (file.equals(name)) {
                        encryptedPassword(new Properties(file.toFile()));
                    }
                }
                key.reset();
            }


        } catch (ClosedWatchServiceException | InterruptedException e) {
            // Ignore
        } catch (IOException e) {

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  protected boolean pollEvents() throws Exception {
    // Take events, but don't care what they are!
    WatchKey watchKey = watchService.take();
    
    watchKey.pollEvents(); 
    watchKey.reset();
    
    // Events are always relevant; ignored paths are not monitored
    return true; 
  }

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      WatchKey key = directory.register(watcher, StandardWatchEventKinds.ENTRY_CREATE, StandardWatchEventKinds.ENTRY_DELETE);
      if(key.isValid()){
        process(key);
      }


      while(key.reset()){


        try {
          key = watcher.take();
        } catch(InterruptedException ie){
          break;

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