[xsd-users] XML Object to String/Text

[Paddy Vishnubhatt]

Thx Boris for the prompt response. 
 

________________________________

From: Boris Kolpackov [mailto:boris at codesynthesis.com]
Sent: Wed 2/21/2007 7:10 AM
To: Paddy Vishnubhatt
Cc: xsd-users at codesynthesis.com
Subject: Re: [xsd-users] XML Object to String/Text



Hi Paddy,

Paddy Vishnubhatt <Paddy.Vishnubhatt at 3leafnetworks.com> writes:

> 1. is there a simple way to get a stringified representation of the
>    object? Like in the Java API (xmlbeans), xmlText() or even toString()
>    which outputs a Sring representation of the given Xml Object?

You can use one of the serialization functions together with
std::ostringstream. For instance, in the library example there is
the this line:

// Write it out.
//
catalog_ (std::cout, *c, map);


You can replace it with something like this (also add #include <sstream>):


// Write it to string.
//
std::ostringstream ostr;

catalog_ (ostr, *c, map);

std::string str = ostr.str (); // XML is in str.

>> 

In my xsd definition and compliation (i did use the --generate-serialization per yr note in the example), I don't find the catalog_ definitions/declarations. (I get an catalog_ undeclared compile error). In order to use route 1, is it a must to create a document object in the XSD definition like how you did it in library example?
 
(xsd:element name="catalog" type="lib:catalog"/>)

If so, What if you don't have a documentation declaration in xsd (I have many xsd definitions and would like to avoid creating document objects for each one of them).



> 2. I see that there are documented ways to create DOMDocument from which
>    one can use DOMWriter to use writeString to get to ultimately get to
>    the string - is there an example/sample code that I can use for/as
>    reference.

There is some sample DOM manipulation code on the Wiki, see for example
3.1 and 3.2:

http://wiki.codesynthesis.com/Tree/FAQ

The ostringstream way is much easier though.


>> True, ostringstream is definitely the right approach but am wondering if I need to do something different w/ my xsd definitions...