Pb for printing elements values

Question

This modified sample code for printing elements values doesn't seems to work ?
an idea ? VALUE is always empty !
-- prints elements in a document
procedure printElements(doc xmldom.DOMDocument) is
nl xmldom.DOMNodeList;
len number;
n xmldom.DOMNode;
begin
-- get all elements
nl := xmldom.getElementsByTagName(doc, '*');
len := xmldom.getLength(nl);
-- loop through elements
for i in 0..len-1 loop
n := xmldom.item(nl, i);
dbms_output.put_line('TAG ' | | xmldom.getNodeName(n));
dbms_output.put_line('VALUE ' | | xmldom.getNodeValue(n)); -- Added line
end loop;
dbms_output.put_line('');
end printElements;
null

Answer 1

getNodeValue() for elements will always be null since elements do not have a node value.
Attribute nodes have a value <foo attr="yes"/>
Text nodes have a value.
Comment nodes have a value.
PI nodes have a value.
So, where you are asking for the
value of an element, you likely
intend to be getting the
value of the Text node child
of that element as in:
<foo>Some Value</foo>
The <foo> element has no value, but
it has a Text-Node child with
a value of "Some Value"