Subject: [xsl] Search for efficiency...(building nodes dynamically) From: "Ahsan Ali" <doubleletter@xxxxxxxxx> Date: Thu, 2 Mar 2006 18:36:43 +0400 |
Hi all, I have an XML file of 6588 Airport elements as follows: <apt code="AAF" city="Apalachicola" country="United States" state="FL">Municipal Apt.</apt> .... In an XSLT program, I am processing yet another XML document that has the following format: <availabilitytable> <avail> <origin>XYZ</origin> <destination>XYZ</destination> </avail> <avail> <origin>XYZ</origin> <destination>XYZ</destination> </avail> </availabilitytable> These are an approx of 15-20 'avail' elements. The problem: I have written the XSL sheet in such a way that for every 'origin' and 'destination' element, the <apt> nodeset is traversed to get the airport name of a given code. Therefore, if there are duplicate origins/destinations (which is very probable in my case) there will be unnecessary multiple traversals. So I thought of building a nodeset of all origins/destinations, removing duplicates, and then looking up the <apt> file. The Question(s): Since I will need the result node later on in the XSL file, where do I store it ? And how do I build a result node like this ? If this is not feasible, what is the best method to avoid multiple traversals of such a large tree ? Any help is appreciated, Regards, Ahsan
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