int getInt(int index) {
        if (Persistit.BIG_ENDIAN) {
            return (_bytes[index + 3] & 0xFF) | (_bytes[index + 2] & 0xFF) << 8 | (_bytes[index + 1] & 0xFF) << 16
                    | (_bytes[index] & 0xFF) << 24;
        } else {
            return (_bytes[index] & 0xFF) | (_bytes[index + 1] & 0xFF) << 8 | (_bytes[index + 2] & 0xFF) << 16
                    | (_bytes[index + 3] & 0xFF) << 24;
        }
    }