XSLT key() - Saxon UnsupportedOperationException

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Subject: XSLT key() - Saxon UnsupportedOperationException
From: Philippe Drix <pdrix@xxxxxxxxxxxx>
Date: Fri, 17 Jan 2003 15:43:39 +0100

Hi,
I have a problem with evaluation of key() fonction.

I think my problem is a XSLT problem, not a Saxon bug, but here the exception :

java.lang.UnsupportedOperationException: Cannot create intensional node-set with context dependencies: class com.icl.saxon.expr.PathExpression:128 at com.icl.saxon.expr.NodeSetIntent.<init>(NodeSetIntent.java:26) at com.icl.saxon.expr.PathExpression.reduce(PathExpression.java:186) at com.icl.saxon.expr.PathExpression.enumerate(PathExpression.java:219) at com.icl.saxon.expr.NodeListExpression.enumerate(NodeListExpression.java:80) at com.icl.saxon.style.XSLForEach.process(XSLForEach.java:69) at com.icl.saxon.style.StyleElement.processChildren(StyleElement.java:630) at com.icl.saxon.style.XSLForEach.process(XSLForEach.java:96) at com.icl.saxon.style.StyleElement.processChildren(StyleElement.java:630) at com.icl.saxon.style.LiteralResultElement.process(LiteralResultElement.java:281) at com.icl.saxon.style.StyleElement.processChildren(StyleElement.java:630) at com.icl.saxon.style.XSLGeneralVariable.getSelectValue(XSLGeneralVariable.java:235) at com.icl.saxon.style.XSLVariable.process(XSLVariable.java:89) at com.icl.saxon.style.XSLStyleSheet.process(XSLStyleSheet.java:626) at com.icl.saxon.Controller.transformDocument(Controller.java:1065) at com.icl.saxon.Controller.transform(Controller.java:939) at com.icl.saxon.StyleSheet.processFile(StyleSheet.java:516) at com.icl.saxon.StyleSheet.doMain(StyleSheet.java:338) at com.icl.saxon.StyleSheet.main(StyleSheet.java:63)

The XSLT program is below. I have two XML documents, and a key to construct, matching elements coming from these two documents.

<xsl:variable name="styles" select="document( $stylesPathName )"/>

<xsl:key name="groupesdeFieldsParNom" match="$styles/office:document-styles/office:master-styles/style:master-page//text:bookmark-ref/@text:ref-name"

use="." />

<xsl:key name="groupesdeFieldsParNom" match="/office:document-content/office:body//text:bookmark-ref/@text:ref-name"

use="." />


<xsl:variable name="theFields">
    <fields>
        <xsl:for-each select="
            /office:document-content/office:body//text:bookmark-ref/@text:ref-name[
              generate-id() =
              generate-id(
                 key('groupesdeFieldsParNom', .)[1]
              )
            ]">
            <xsl:copy-of select="parent::*"/>
        </xsl:for-each>

        <xsl:for-each select="
            $styles/office:document-styles/office:master-styles/style:master-page//text:bookmark-ref/@text:ref-name[
              generate-id() =
              generate-id(
                 key('groupesdeFieldsParNom', .)[1]
              )
            ]">
            <xsl:copy-of select="parent::*"/>
        </xsl:for-each>
    </fields>
</xsl:variable>

I think the problem arises on a call to key(), because the context node is not already known, while key() needs this context node, to know what XML tree is to be visited.

I tried some workarounds, without success. I guess I will have to find out another resolution method, but perhaps there is indeed a workaround that I have not already thought about.

Any idea ?

Regards -- Ph D


==
Philippe Drix
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http://www.objectiva.fr
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tel : +33 1 47 36 60 30
fax : +33 1 47 36 61 93

XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list

Current Thread
XSLT key() - Saxon UnsupportedOperationException Philippe Drix - Fri, 17 Jan 2003 09:43:04 -0500 (EST) <= Michael Kay - Fri, 17 Jan 2003 14:04:24 -0500 (EST)

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