I suspect that I have found a bug pertaining to multiple key() function calls that share a common xsl:key but occur in different templates.  Both key() calls are operating on results-tree-fragments that I’ve turned into nodesets with the xalan:nodeset() extension.

 

When the calls are in different templates the second occurance of key() doesn’t return any results.  If I combine template1 and template2 into a single template then I get correct results for both key() calls.  I have worked around the issue by cloning the xsl:key (key2) and no longer reusing them.

 

I’m using Xalan 2.7.1.

 

Results

====== Template 1 ======

count(tree1)=2

N1=1

N2=2

N3=3

====== Template 2 ======

count(tree2)=3

 

 

Test Code:

===============================================================

<?xml version="1.0"  encoding = "ISO-8859-1"?>

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xalan="http://xml.apache.org/xalan" exclude-result-prefixes="xalan">

 

  <xsl:key name="key1" match="*" use="text()"/>

  <xsl:key name="key2" match="*" use="text()"/>

 

  <xsl:template match="/">

      <xsl:call-template name="template1"/>

      <xsl:call-template name="template2"/>

      <xsl:call-template name="template3"/>

  </xsl:template>

 

  <xsl:template name="template1">

      <xsl:message>====== Template 1 ======</xsl:message>

      <xsl:variable name="rtf1"><N1>1</N1><N2>2</N2></xsl:variable>

      <xsl:variable name="tree1" select="xalan:nodeset( $rtf1)"/>

      <xsl:message>count(tree1)=<xsl:value-of select="count( $tree1/*)"/></xsl:message>

      <xsl:variable name="uniqNodes" select="$tree1/*[generate-id() = generate-id( key( 'key1', text()))]"/>

      <xsl:for-each select="$uniqNodes">

        <xsl:message><xsl:value-of select="local-name()"/>=<xsl:value-of select="text()"/></xsl:message>

      </xsl:for-each>

  </xsl:template>

 

  <xsl:template name="template2">

      <xsl:message>====== Template 2 ======</xsl:message>

      <xsl:variable name="rtf2"><N4>4</N4><N5>5</N5><N6>6</N6></xsl:variable>

      <xsl:variable name="tree2" select="xalan:nodeset( $rtf2)"/>

      <xsl:message>count(tree2)=<xsl:value-of select="count( $tree2/*)"/></xsl:message>

      <!-- ************  CHANGE FOLLOWING FROM key1 to key2 ************* -->

      <xsl:variable name="uniqNodes" select="$tree2/*[generate-id() = generate-id( key( 'key1', text()))]"/>

      <!-- ************************************************************** -->

      <xsl:for-each select="$uniqNodes">

          <xsl:message><xsl:value-of select="local-name()"/>=<xsl:value-of select="text()"/></xsl:message>

      </xsl:for-each>

  </xsl:template>

 

</xsl:stylesheet>

===============================================================

 

Thanks for any help,

-kurt

(This is my first post to the user-group so forgive me if I’m not following proper protocol)

 

 


Kurt Hall
Principal Engineer

Truven Health Analytics

Phone: 303-486-9161

kurt.hall@truvenhealth.com
truvenhealth.com

The Healthcare Business of Thomson Reuters is now
Truven Health Analytics.