Subject: Re: [xsl] XPath perfomance in attributes or nodes? From: Peter Davis <pdavis152@xxxxxxxxx> Date: Wed, 6 Mar 2002 18:52:59 -0800 |
<xsl:key name="project-uid" match="project" use="@uid"/> <!-- or use="uid" --> <xsl:template ...> <xsl:apply-templates select="key('project-uid', '{6A97F258-93A7-4C5E-B712-052130A5208C}')[1]"/> <!-- [1] is probably not necessary --> </xsl:template> will be much faster than either approach. On Wednesday 06 March 2002 02:38, Arjé Cahn wrote: > Hi everyone, > > Does anyone have some solid performance figures on using XPath on > attributes or nodes? > > For example, I have the following XML snippet: > > <projects> > <project uid="{6A97F258-93A7-4C5E-B712-052130A5208C}"> > <uid>{6A97F258-93A7-4C5E-B712-052130A5208C}</uid> > <name>The project</name> > <description>This is the project</description> > <startdate>01-01-2002</startdate> > </project> > <project uid="{6A97F258-93A7-4C5E-B712-052130A5208D}"> > <uid>{6A97F258-93A7-4C5E-B712-052130A5208D}</uid> > <name>Another project</name> > <description>This is another project</description> > <startdate>02-02-2002</startdate> > </project> > </projects> > > And I want to select a <project>. > Is it faster using XPath > projects/project[uid='{6A97F258-93A7-4C5E-B712-052130A5208C}'] > or > projects/project[@uid='{6A97F258-93A7-4C5E-B712-052130A5208C}'] > or even (but this is not always possible) > projects/project[name='The project'] > ??? > > I will have about 10000+ items. > > Regards, > > Arjé Cahn > > > --------------------------------------------------------- > Content Management Department > Hippo Webworks > Grasweg 35 > 1031 HW Amsterdam > The Netherlands > Tel +31 (0)20 6345173 > Fax +31 (0)20 6345179 > arje(at)hippo(dot)nl / www.hippo.nl > > > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list -- Peter Davis The system was down for backups from 5am to 10am last Saturday. XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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