/**
     * Any change to the data in a named stream of a file in the watched directory or subtree causes a change notification wait operation to return.
     */
    int FILE_NOTIFY_CHANGE_STREAM_WRITE = 0x00000800;

    // actions returned
    /**
     * File has been added
     */
    int FILE_ACTION_ADDED = 0x00000001;
    /**
     * File has been removed
     */

     */
    public static final int FILE_NOTIFY_CHANGE_STREAM_SIZE = 0x400;
    /**
     * Notify when alternate data stream is written
     */
    public static final int FILE_NOTIFY_CHANGE_STREAM_WRITE = 0x800;

    private final byte[] fileId;
    private final int outputBufferLength;
    private int notifyFlags;
    private int completionFilter;

    /**
     * Constructs a change notify request