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

2005-03-24 03:44:38

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(_at_)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(_at_)xxxxxxxxxxxxx]
Sent: 23 March 2005 15:26
To: xsl-list(_at_)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 


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