XSLT 1 - Using ora:node-set() function

The ora:node-set() function can be used to convert a XML fragment into a node set.  Once a XML fragment is converted into a node-set you can loop through it, or use XPath to access elements within it.

Example usage:

<xsl:template match="/">
     <xsl:variable name="SessionContext">
         <xsl:value-of select="app:getSessionContext()">
         <!-- returns session context as a XML fragment with elements - ctx/UserName, ctx/LoginToken -->
     </xsl:variable>
     <xsl:apply-templates select="Record"/>
</xsl:template>

<xsl:template match="Record">
     <RecordDetails>
           <ColumnA><xsl:value-of select="./Record/ColA"></ColumnA>
           <ColumnB><xsl:value-of select="./Record/ColB"></ColumnB>
           <ColumnC><xsl:value-of select="./Record/ColC"></ColumnC>
           <!-- access ctx values using xpath on variable -->
           <ColumnC><xsl:value-of select="ora:node-set($SessionContext)/ctx/UserName"></UserName>
           <ColumnC><xsl:value-of select="ora:node-set($SessionContext)/ctx/LoginToken"></UserName>
     </RecordDetails>
</xs:template>