public long getLong() {
        return ((long) (_buffer[_offset++] & 0xff) << 56 | (long) (_buffer[_offset++] & 0xff) << 48
                | (long) (_buffer[_offset++] & 0xff) << 40 | (long) (_buffer[_offset++] & 0xff) << 32
                | (long) (_buffer[_offset++] & 0xff) << 24 | (long) (_buffer[_offset++] & 0xff) << 16
                | (long) (_buffer[_offset++] & 0xff) << 8 | (long) (_buffer[_offset++] & 0xff));
    }
public long getLong ( ) { return ( ( long ) ( _buffer [ _offset ++ ] & 0xff ) << 56 | ( long ) ( _buffer [ _offset ++ ] & 0xff ) << 48 | ( long ) ( _buffer [ _offset ++ ] & 0xff ) << 40 | ( long ) ( _buffer [ _offset ++ ] & 0xff ) << 32 | ( long ) ( _buffer [ _offset ++ ] & 0xff ) << 24 | ( long ) ( _buffer [ _offset ++ ] & 0xff ) << 16 | ( long ) ( _buffer [ _offset ++ ] & 0xff ) << 8 | ( long ) ( _buffer [ _offset ++ ] & 0xff ) ) ; }
Get a long from the buffer

@return long