Problem with dbms_xmldom.makedocumentfragment in 10.2.0.4 (ORA:31183)

Question

Hi!
After a upgrade from 9.2.0.8 to 10.2.0.4 the following procedure has stopped working.
-- PROC START --
procedure lp_daten(p_node IN dbms_xmldom.DOMNode) AS
BEGIN
if dbms_xmldom.isnull(p_node)
then return;
end if;
dbms_lob.createTemporary(l_interpretation,TRUE);
l_xsldoc := dbms_xmldom.newDOMDocument(xmltype.createXML(
'<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">' ||
'<xsl:template match="interpretation">' ||
'<xsl:copy-of select="* | text()"/>' ||
'</xsl:template>' ||
'</xsl:stylesheet>'));
dbms_xslprocessor.valueOf(p_node,'name/text()',l_name);
l_node := dbms_xslprocessor.selectSingleNode(p_node,'child::interpretation');
--DBMS_OUTPUT.put_line('Node name = ' || DBMS_XMLDOM.getNodeName(l_node));
--DBMS_OUTPUT.put_line('Node value = '|| DBMS_XMLDOM.getNodeValue(l_node));
--DBMS_OUTPUT.put_line('Node type = ' || DBMS_XMLDOM.getNodeType(l_node));
l_xmlinterpret := dbms_xmldom.MAKEDOCUMENTFRAGMENT(l_node);
l_xslstylesheet := dbms_xslprocessor.newStylesheet(l_xsldoc, null);
l_xslproc := dbms_xslprocessor.newProcessor;
dbms_xslprocessor.processXSL(l_xslproc, l_xslstylesheet, l_xmlinterpret, l_interpretation);
dbms_xslprocessor.freeProcessor(l_xslproc);
dbms_xmldom.freeDocument(l_xsldoc);
-- dbms_output.put_line ('Uni: ' || l_univ);
-- dbms_output.put_line ('Jahr: ' || l_jahr);
-- dbms_output.put_line ('Interpretation: ' || l_interpretation || ' Lange: ' || length(l_interpretation));
-- dbms_output.put_line ('Name: ' || l_name);
insert into wbjahrunivkz_tmp
(liefidf,jahr,univ,kzidf,interpretation,bearblzt,bdatzeitlzt)
values
(l_liefidf,l_jahr,l_univ,l_name,replace(l_interpretation,'<dummy/>',''),user,sysdate);
EXCEPTION
WHEN OTHERS THEN
dbms_output.put_line ('Exception in lp_daten: ' || substr(sqlerrm, 0, 250));
raise;
END lp_daten;
-- PROC END --
It fails on the line "l_xmlinterpret := dbms_xmldom.MAKEDOCUMENTFRAGMENT(l_node);" because xdb can't cast a documentNode to a documentFragment. But documentation says this should work.
I get the following error:
ORA-31183: cannot cast into given type...
What goes wrong here?
Thanks
Markus

Answer 1

Markus
Additional checks were added to throw ORA-31183 after 9.2.0.8.0. The intent of make* functions is to just cast DOM Types back and forth to DOMNode, not to change them from one type to another via a DOMNode. For this testcase, you should create a new document fragment and append the l_node (or its copy) as a child of that.
Asha