How to handle duplicate nodes in xslt mapping

Question

Hi,
in my scenario that i have a source mapped to the canonical structure and from canonical to target.
source structure
<empid>
<national_id>
canonical structure
<id> 0 to unbounded
    <id>
    <type>
the mapping from source to canonical
is like i have duplicated the canonical structure and then mapped
id -
empid
type--- assigned a constant employee
id -
national_id
type--- assigned a constant National
i have used xslt mapping using stylus studio and mapping from source to canonical is not the problem
when i mapped the canonical to target there is a problem
the node id is visible once in the canonical when the structure is a source  
but there is a dupicate node in the structure but not visible. how to procedue with the mapping for canonical to target
kindly help me
with regards
pradeep N

Answer 1

hi,
Udo Martens.
<b>source xml</b>
<?xml version="1.0" encoding="UTF-8"?>
<ns0:Materail_fileReceive xmlns:ns0="http://www.aprilbiztec.in/MM_MultiFile">
   <Emp_ID>12</Emp_ID>
   <National_ID>91</National_ID>
</ns0:Materail_fileReceive>
<b>canonical xml</b>
<?xml version="1.0" encoding="UTF-8"?>
<ns0:Materail_file xmlns:ns0="http://www.aprilbiztec.in/MM_MultiFile"><Material><ID>12</ID><Type>Employee</Type></Material><Material><ID>91</ID><Type>National</Type></Material></ns0:Materail_file>
<b>source to canonical mapping is</b>
<?xml version='1.0' ?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:ns0="http://www.aprilbiztec.in/MM_MultiFile">
     <xsl:template match="/">
          <ns0:Materail_file xmlns:ns0="http://www.aprilbiztec.in/MM_MultiFile">
               <Material>
                    <ID>
                         <xsl:value-of select="ns0:Materail_fileReceive/Emp_ID"/>
                    </ID>
                    <Type>Employee</Type>
               </Material>
               <Material>
                    <ID>
                         <xsl:value-of select="ns0:Materail_fileReceive/National_ID"/>
                    </ID>
                    <Type>National</Type>
               </Material>
          </ns0:Materail_file>
     </xsl:template>
i want the<b> canonical to target mapping</b> where my target structure is similar to that of my source
kindly help.
regards
pradeep N.