Subject: Re: [xsl] perfomance question about selecting from child-node From: "Braumüller, Hans" <H.Braumueller@xxxxxxxxxxxx> Date: Fri, 23 May 2003 10:44:19 +0200 |
Hello, regarding Michael comment about my silly question: is it not obvious in my case(i shortcut my question), because i need from the xml-information-source for each node row some data, but i output a html-rows from the template rule for DARKONTRAKT (a child from each row). To summarize a walking on a parent node seems no big difference with other methods, like passing parameters. It seems that like post David that major selections like <snip comment="David Carliste"> If you were searching up arbitrary amounts, ancestor::*[this and that and the other] then not doing that search and passing down a parameter will probably start to win </snip> one should go better with passing parameters. Thanks for your time, Hans It might be a silly question, but I would have thought the obvious way of coding this was: > <xsl:template match="row"> > <xsl:value-of select="tannr"/> > <xsl:value-of select="tscreate"/> > <xsl:value-of select="tsupdate"/> > <xsl:apply-templates select="DARKONTRAKT"/> > </xsl:template> In any case, the only way to get answers to this kind of question is to try it on your chosen XSLT processor and see. I would expect the difference to be very small on most processors. Michael Kay > -----Original Message----- > From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx > [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of > Braumüller, Hans > Sent: 22 May 2003 15:36 > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx > Subject: [xsl] perfomance question about selecting from child-node > > > Hello friends, > > a short perfomance question about selecting from child-node > > XML (... = etc) > /********************/ > <DARLEHEN> > ... > <row num="16"> > <tannr>20010013</tannr> > <tscreate>2001-06-01-12.17.02.162000</tscreate> > <tsupdate>2001-06-01-14.46.15.125000</tsupdate> > <geschart ztp="true"/> > <DARKONTRAKT num="16"> > <credit_line>1000000,00</credit_line> > <isonominal>EUR</isonominal> > <kontraktnr>1</kontraktnr> > > > </DARKONTRAKT> > <DARKONTRAKT num="17"> > ... > </DARKONTRAKT> > </row> > <row num="17"> > ... > </row> > ... > </DARLEHEN> > XSLT (... = etc) > /********************/ > > What is better for getting a faster transformation in > general? 1. When i am transcurring node-set "DARLEHEN" doing > an applying template for "row" with rule > <xsl:template match="row"> > <xsl:apply-templates select="DARKONTRAKT"> > <xsl:with-param name="tannr" select="tannr"/> > <xsl:with-param name="tscreate" select="tscreate"/> > <xsl:with-param name="tsupdate" select="tsupdate"/> > <!-- §_010 --> > <xsl:with-param name="geschartZTP" select="geschart/@ztp"/> > </xsl:apply-templates> > </xsl:template> > > then putting the values of the parameters on the node-set > DARKONTRAKT out > > 2. > Or make a direct applying template DARKONTRAKT and from there > getting the tree one step up, like > <xsl:value-of select="../tannr"/></xsl:attribute> > <xsl:value-of select="../tscreate"/> > <xsl:value-of select="../tsupdate"/> > <xsl:value-of select="../geschart/@ztp"/> > > Imagine hundreds of rows in the xml-source! > > Thanks, > > Hans Braumüller > Systementwickler Web-Design > Hanse Orga AG > Oldesloer Straße 63 > D-22457 Hamburg > Telefon: (+49) 040 51 48 08-62 > Telefax: (+49) 040 51 48 08-88 > E-Mail: h.braumueller@xxxxxxxxxxxx > > > > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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