Re: [xsl] XPATH Conditional Values and Sums

["J.Pietschmann" <j3322ptm@xxxxxxxx>]

Puneet Railan wrote:
[snip sample]
> The parameter being passed in is specified via the other XSLT generated
> by MapForce (which allows me to create some mappings and generate XSLT
> automatically).  I'm basically trying to use this as a sort of
> plug-in/mapforce library file to do transformations.  Basically, what I
> want done with that sample code up there (and using some of the code
> below) is to sum (roll-up) everything in the Data elements by the SSL
> name attribute.  I'm sorry if that wasn't clear in the first place.

The following will almost literally do what you describe:
<?xml version="1.0"?>
<xsl:stylesheet version="1.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
 <xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
 <xsl:strip-space elements="*"/>
 <xsl:template match="/*">
  <xsl:for-each select="SSL/@name">
    <xsl:call-template name="GetSum">
      <xsl:with-param name="filter1" select="."/>
    </xsl:call-template>
  </xsl:for-each>
 </xsl:template>
 <xsl:template name="GetSum">
  <xsl:param name="filter1" select="."/>
  <xsl:value-of select="sum(//SSL[@name=$filter1]//Data)">
 </xsl:template>
</xsl:stylesheet>

I suspect your actual requirements are a bit more complicated,
but it may serve as a start. If performance becomes a problem,
use a key for selecting the SSL elements.

J.Pietschmann