* Return the SID associated with this ACE.
     * 
     * @return ACE target SID
     */
    SID getSID ();


    /**
     * Returns the access mask associated with this ACE. Use the
     * constants for <tt>FILE_READ_DATA</tt>, <tt>FILE_WRITE_DATA</tt>,
     * <tt>READ_CONTROL</tt>, <tt>GENERIC_ALL</tt>, etc with bitwise
     * operators to determine which bits of the mask are on or off.
     * 

            case 0x09:
                return "Files only";
        }
        return "Invalid";
    }
    /**
     * Returns the access mask accociated with this ACE. Use the
     * constants for <tt>FILE_READ_DATA</tt>, <tt>FILE_WRITE_DATA</tt>,
     * <tt>READ_CONTROL</tt>, <tt>GENERIC_ALL</tt>, etc with bitwise
     * operators to determine which bits of the mask are on or off.
     */