How to use

addListener

method

in

leap.lang.io.FileChangeObserver

public FileChangeObserver(File directory, FileChangeListener listener) {
  this(directory, (FileFilter)null);
  this.addListener(listener);
}

private FileChangeObserver createObserver(File dir, FileChangeListener listener) {
  FileChangeObserver observer = new FileChangeObserver(dir);
  observer.addListener(listener);
  return observer;
}

FileChangeObserver observer = new FileChangeObserver(file.getFile().getParent(), fileFilter);
observer.addListener(listener);
fileMonitor.addObserver(observer);
FileChangeObserver observer = new FileChangeObserver(dir.getFile());
observer.addListener(listener);
fileMonitor.addObserver(observer);