Subject: Re: Filtering XML to improve performance
From: Erik Bruchez <erik@xxxxxxxxxxx>
Date: Mon, 22 Mar 2004 11:01:20 -0800
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Instead of using SAX to preprocess the data, you could use STX:
http://joost.sourceforge.net/
You would have to create a pipeline that does the following:
XML parser -> STX -> XSLT
This way, the XSLT transformer would work on a potentially much smaller
document. You can create such pipelines "by hand" using the SAX API, or use
higher-level tools (look for "XPL pipelines" in Google).
-Erik
Kenny Akridge wrote:
Sorry if this is a FAQ- please point me in the right direction if so.
Let's say my xml is this:
<root>
<items>
<onlyImportantItem>THIS</onlyImportantItem>
<junkItem>foo</junkItem>
<moreJunk>foo</moreJunk>
<stillMoreJunk>foo</stillMoreJunk>
</items>
<items>
<onlyImportantItem>THAT</onlyImportantItem>
<junkItem>foo</junkItem>
<moreJunk>foo</moreJunk>
<stillMoreJunk>foo</stillMoreJunk>
</items>
...
...
...
</root>
If I only mainly want to work with <onlyImportantItems>, is there a way that
I can filter out all the other data I don't need when I do the transform?
So for instance, I don't want the XML parser searching through all the
garbage, I want it cut down to just the data I need. Can I do something
like this at the beginning of all my xsl sheets?
Thanks.
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