RE: [xsl] How to select nodes with explicitly set default namespace - DOM4J

["Michael Kay" <mike@xxxxxxxxxxxx>]

> The elements are not bound to any namespace prefix - as you 
> can see from the 
> example, so a default namespace of null or "" is used.

No, the effect of the declaration xmlns="urn:hl7-org:v3" is that all
unprefixed elements within the scope of this declaration are in the
namespace urn:hl7-org:v3. As I say, the elements are in a namespace, and the
only way in XPath 1.0 to access elements that are in a namespace is to bind
a prefix to that namespace and use prefixed element names in the XPath
expression.

Michael Kay
http://www.saxonica.com/



  The namespace 
> "urn:hl7-org:v3" has no prefix, so the sub elements do not 
> need the prefix, 
> how to I access such elements in code??
> 
> 
> <PRSC_IN080000UK06 xmlns="urn:hl7-org:v3"
> <device>
> <id root="2.16.840.1.113883.2.1.3.2.4.10" extension="RJR-0000217" />
>  </device>
> </PRSC_IN080000UK06>
> 
> 
> 
> Subject: RE: [xsl] How to select nodes with explicitly set default 
> namespace - DOM4J
> From: "Michael Kay" <mike@xxxxxxxxxxxx>
> Date: Wed, 23 Mar 2005 15:54:31 -0000
> 
> 
> In XPath 1.0, if you want to select an element that's in a 
> namespace, you
> need to bind a prefix to that namespace and use a prefixed 
> QName in the path
> expression. The fact that the namespace is the default 
> namespace in the
> source document makes no difference.
> 
> Michael Kay
> http://www.saxonica.com/
> 
> 
> 
> > -----Original Message-----
> > From: Barbara Worwood [mailto:bworwood@xxxxxxxxxxxxx]
> > Sent: 23 March 2005 15:26
> > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> > Subject: [xsl] How to select nodes with explicitly set
> > default namespace - DOM4J
> >
> >
> > Hi,
> >
> > I am having a problem selecting nodes that are part of a
> > default namespace.
> > The xml format cannot be modified as it is part of an NHS 
> UK standard.
> >
> > For Example:  xmlns=="urn:hl7-org:v3"  is the default
> > namespace, though a
> > call to selectSingleNode from the root element will not
> > return anything for
> > me. See code below...
> >
> > ==============================================================
> > =========
> > ==============================================================
> > =========
> > <?xml version="1.0" encoding="UTF-8" ?>
> > <!-- The element below is the content of the first payload
> > container -->
> > <PRSC_IN080000UK06 xmlns="urn:hl7-org:v3"
> > xmlns:fo="http://www.w3.org/1999/XSL/Format";;
> > xmlns:voc="urn:hl7-org:v3/voc"xmlns:xsi="http://www.w3.org/200
> > 1/XMLSchema-instance"
> > xsi:schemaLocation="urn:hl7-org:v3../Schemas/PRSC_IN080000UK06.xsd">
> > <id root="A6C66142-1DD1-11B2-9062-8F5E91AA2DD7"/>
> > <creationTime value="20040913030014" />
> > <versionCode code="V3NPfIT2.0" />
> > <interactionId root="2.16.840.1.113883.2.1.3.2.4.12"
> > extension="PRSC_IN080000UK06" />
> > <processingCode code="P" />
> > <processingModeCode code="T" />
> > <acceptAckCode code="NE" />
> > <communicationFunctionRcv>
> > <device>
> > <id root="2.16.840.1.113883.2.1.3.2.4.10" extension="RJR-0000217" />
> > </device>
> > </communicationFunctionRcv>
> > <communicationFunctionSnd>
> > <device>
> > <id root="2.16.840.1.113883.2.1.3.2.4.10" 
> extension="T141A-0000202" />
> > </device>
> > </communicationFunctionSnd>
> > <ControlActEvent>
> > <subject>
> > <RequestAvailableSlots classCode="SPLY" moodCode="RQO">
> > <id root="A6C66142-1DD1-11B2-9062-8F5E91AA2DD7" />
> > <effectiveTime>
> > <low value="200411090000" inclusive="true" />
> > <high value="200412100000" inclusive="false" />
> > </effectiveTime>
> > <location typeCode="LOC">
> > <clinic classCode="SDLOC">
> > <id root="2.16.840.1.113883.2.1.3.2.4.2" extension="DAVID"
> > displayable="true" />
> > </clinic>
> > </location>
> > </RequestAvailableSlots>
> > </subject>
> > </ControlActEvent>
> > </PRSC_IN080000UK06>
> > ==============================================================
> > =========
> > ==============================================================
> > =========
> >
> > /* Code */
> > InputStream is =
> > 
> CabCfg.class.getClassLoader().getResourceAsStream("testdoc.xml");  //
> > testdoc.xml is doc above
> > Document doc = new SAXReader().read(is);
> > Element el = doc.getRootElement();
> > el.add(new Namespace("", "urn:hl7-org:v3"));
> > Element interIdEl = 
> (Element)(el.selectSingleNode("//interactionId"));
> > ==============================================================
> > =========
> > ==============================================================
> > =========
> >
> > interIdEl returns null.
> >
> >
> > Any help with this would be greatly appreciated!
> >
> > Thanks,
> > Barbara