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RE: [xsl] unefficiate xpaths
Subject: RE: [xsl] unefficiate xpaths From: "Michael Kay" <mhk@xxxxxxxxx> Date: Mon, 9 Jun 2003 21:49:31 +0100 |
> > <xsl:for-each > select="//clients/client[count(commissions/commission[earnerId > = //earners/earner[type = $rptType]/id]) = 0 and > <website=$prodClass)]"> > I wonder if you really mean "//earners". Are you interested only in earners that are descendants of the commission you are testing? In that case, use ".//earners". If you are interested in testing against all earners in the document, try setting a variable <xsl:variable name="e" select="//earners/earner[type = $rptType]/id"/> At present your performance is O(n**2), because //x typically involves a serial scan of the document. With the above change, it should become O(n) (assuming that type=$rptType selects a single element). For even faster performance, you can always replace //EXPR[VAL=C] with <xsl:key name="k" match="EXPR" use="VAL"/> then key('k', C) Michael Kay XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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