Subject: RE: [xsl] Re: Re: Re: Unbounded element grouping/concatenation From: "Gupta, Raman K [CI]" <raman.k.gupta@xxxxxxxxxxxxx> Date: Thu, 11 Dec 2003 15:46:24 -0500 |
> The recursive algorithm works very well for me with > XalanJ2.4.1. It is also > much faster than the variant with generate-id(). > > I tested it with a record (type="normal"), which has 200 > following siblings > record (type="continuation"). True, but when you raise the number of continuation records, it will eventually fail (for me, somewhere between 1000 and 1200 records, but this may vary somewhat depending on your java environment and stack memory. I need to support at least four or five thousand. > With this source xml the recursive transformationtakes 781 ms > to run. The > transformation with generate-id() takes 18687 ms. Yes, the recursion is very much faster... that is why I wished Xalan did tail recursion optimization. If there is no other option, I will use the generate-id() method. Also note that the generate-id() exhibits O(n^2) behavior, while the recursive method should exhibit O(n). That was why I am still hoping there is a way to do it recursively (for a significant number of continuation records). Cheers, Raman Gupta XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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