Cart
|
[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: XML Performance in a Transacation
 --- Michael Kay <mike@s...> wrote: > > A new performance oriented parser implementation > must come with a > > straightforward API, or else it will matter little > in practise. > > I agree strongly with this sentiment. It's > performance in the hands of the > average user that's important, not performance in > the hands of benchmarking > gurus. Important part of this, too, is a sensible layering of components: very few drivers know much about the car engine itself, and tuning/maintenance is generally left to professionals. As such, having highly specialized low-level components does not in and of itself defeat the end goal of higher performance processing pipelines. To me there are somewhat natural stacking orders; streaming parser -> tree models -> processors modifying tree models; and pipelining at appropriate levels. There is nothing more frustrating than reading about developers who pipeline xml processing by full serialization back to text, and reparsing; just to go from, say, DOM to JDOM. It can also prevent the problem of "swiss pocket knife" solutions that try to do everything for everyone (about the biggest concern I'd have regarding, say, Xerces, is its multiple goals from tree models to streaming parsing, xml, wml AND html, and so forth), when different tools/libs can focus on the slice they are in best position to deal with. That's of course where well-designed interfaces are needed (as you and Wolfgang pointed out). For what it's worth, I also think that better awareness of simple usage patterns for existing APIs would help a lot. For APIs like SAX and StAX, the number of rules to follow is quite small, albeit none of the rules is necessarily immediately intuitive without some knowledge of parser implementations in general. -+ Tatu +- __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com 
|
PURCHASE STYLUS STUDIO ONLINE TODAY!Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced! 
Download The World's Best XML IDE!Accelerate XML development with our award-winning XML IDE - Download a free trial today! Subscribe in XML format
|
|||||||||
