Derek Hohls wrote:
(... the example below says one has to know how to do caching of XSPs' -
I still do not know how to do this but fortunately no one has yet complained
about the speed of the generators - to me the issue is optimizing the speed
of the transformers - anyone tried doing DocBook on the fly?? -- but the
point is here is that you dont' need to know this stuff in order to get started;
optimization is a second or third order stage of learning)
Here's the problem: While it's true that XSPs (and generators by association) are incredibly fast for the most part, the lack of caching can be a serious bottleneck because, as you point out, the generators are just the first part of a chain. XSLT transformers are usually cacheable. Put two or three transformers in a chain and you're looking at some processing time. If your underlying XSP isn't caching, the transformers can't cache and have to reprocess the same data over again. If the XSP caches, the transformations cache as well; It's a double win!
Cocoon 2.0.4 has a caching XSP example already. In CVS, the caching API has changed and the example no longer works; However, there's a wiki doc on a 2.1dev version:
http://wiki.cocoondev.org/Wiki.jsp?page=XSPCachingWithCocoonHEAD
And I do DocBook-like transformations. Actually, we use a superset of Simplified DocBook (http://www.oasis-open.org/docbook/xml/simple/). Most of the transformations templates are very simple (eg. <para> to <p>, <ulink> to <a>).
- Miles
I'm at about level 4c now... and at each stage I get new insights into just how powerful and essential the sitemap is.
I can almost see it now: resumes with the Cocoon levels. Java: 3 years; Intermediate C++: 5 years; Advanced COBOL: 12 years; Advanced Cocoon: 2 years; Level 7 ;-) - Miles --------------------------------------------------------------------- Please check that your question has not already been answered in the FAQ before posting. <http://xml.apache.org/cocoon/faq/index.html> To unsubscribe, e-mail: <[EMAIL PROTECTED]> For additional commands, e-mail: <[EMAIL PROTECTED]>
