Re: [xsl] dynamic selection of elements

["J.Pietschmann" <j3322ptm at yahoo dot de>]

Michael Zehrer wrote:
> Hi list,
>
> I have a performance problem with xalan:evaluate, first the scenario:
>
> <somegeneratedxml>
> 	<wishlist>
> 		<item id="length">
> 		<item id="weight">
> 		<item id="speed">
> 	</wishlist>
> 	<data>
> 		<item>
> 			<length>100</length>
> 			<height>100</height>
> 			<weight>100</weight>
> 			<color>red</color>
> 			<speed>100</speed>
> 		</item>
...
> the wishlist items are dynamic and represent the set of data that I want to pick from each item in the data set, so I constructed for each wishlist/item a path with xalan:evaluate, which selects the elements from each data/item, but this is very slow. A better idea anyone?
Try
  <xsl:key name="pick-ip" match="*" use="name()"/>
   ...
  <xsl:template match="item">
   <xsl:apply-templates selec="key('pick-it',@id)"/>
   ...
This can be extended to slightly more complicated cases.


HTH
J.Pietschmann


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