[xsd-users] Storing individual tree nodes in DB XML documents

[Boris Kolpackov]

Hi Remsy,

Schmilinsky, Remsy <Remsy.Schmilinsky at ccra-adrc.gc.ca> writes:

> Hi. From the library example:
>
>     for (catalog::book::const_iterator bi (c->book ().begin ());
>          bi != c->book ().end ();
>          ++bi)
>
> I want to save each book in dbxml as a separate document instead of the
> whole catalog. can I convert iterator bi to catalog::book object and
> then use it to save a document in dbxml?

Sure, catalog::book::const_iterator is a standard, STL-like iterator
so you can get to the book by simply dereferencing it:

catalog::book const& b (*bi);

> I am following the dbxml example, it shows how to save the catalog as a
> document instead of a document for each book.

I think this code should do what you want:

// Create a new XML document.
//
XmlDocument doc (manager.createDocument ());
doc.setName ("new.xml");


// Obtain its DOM representation and add the root element.
//
xercesc::DOMDocument& dom_doc (*doc.getContentAsDOM ());

xercesc::DOMElement* e (
  dom_doc.createElementNS (
      xml::string ("http://www.codesynthesis.com/library").c_str (),
      xml::string ("lib:book").c_str ()));

dom_doc.appendChild (e);



// Serialize the object representation to the XML document.
//
*e << b;


// Place the document into the container.
//
container.putDocument (doc, update_context);


hth,
-boris
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