On 19/04/2008, Michael Kay <mike(_at_)saxonica(_dot_)com> wrote:
It would be really useful if it returned the actual dateTime
> at the time of the call so you could implement a progress
> reporting feature in the transform - you could say how many
> records were processed in a given time and based on that
> suggest when the transform might finish.
It wouldn't be as useful as you think. Let's say you use an extension
function that does this, as has been suggested:
<xsl:variable name="startTime" select="xx:current-dateTime()"/>
... do some processing ...
<xsl:variable name="endTime" select="xx:current-dateTime()"/>
<xsl:message select="$endTime - $startTime"/>
The final result will be a negative duration, because Saxon will evaluate
$endTime before it evaluates $startTime.
ha, good point - that should be the #1 example for describing what
lazy evaluation is...
It is easy enough though to ensure startTime is evaluated at the start
of processing.
--
Andrew Welch
http://andrewjwelch.com
Kernow: http://kernowforsaxon.sf.net/
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