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Re: [xsl] The benefits of exact selection

2009-11-06 11:07:23
<xsl:value-of select="/document/colors[1050]/color[140]/dec/@num"/>
is not same as <xsl:value-of select="//@num"/>

you can`t compare this two XPath`s alone from XML - it is same as
compare "soft with warm" :)

can bet your students high esimate comparing push and pool scheme for
XSLT (also known as data-driven and template-driven models)


2009/11/6 Michael Kay <mike(_at_)saxonica(_dot_)com>:

Using Saxon PE from inside Oxygen, I transformed 20 times for each.
Here is the average time as reported by Oxygen:

1) Exact selection: 4.1s
2) Wildcard selection: 5.0s

That is a difference. But it is also fair to say that for
most transformations, on a small dataset, it will be
impossible to measure a difference of any importance.


Does your transformation time include document parsing/building time? For a
small task like this, the parsing time will completely swamp the
transformation time. If the parsing time is 4.0s, then your figure shows the
transformation time is different by a factor of 10.

Regards,

Michael Kay
http://www.saxonica.com/
http://twitter.com/michaelhkay


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