XOM API for Processing XML with Java

[Elliotte Harold <elharo AT metalab.unc.edu>]

Wolfgang Hoschek wrote:

> Can you be more specific? How and why would that remove other 
> optimizations?

In the current code base I've paid a lot of attention to making sure 
each object carries around the minimum number of references it possibly 
can, is not initialized until it is use,d and is initialized to the 
minimum size it needs to be. This took quite a bit of work and 
profiling, all of which has to be redone when you redesign the 
underlying structures.

My initial attempt to remove the Attributes class increased memory usage 
because saving a few bytes per element did not compensate for losing the 
very carefully crafted ands measured optimizations in the Attributes 
class. Eventually, I could reproduce these in the Element class too, 
without the Attributes class, but it's not low-hanging fruit.

--
Elliotte Rusty Harold  elharo AT metalab.unc.edu
XML in a Nutshell 3rd Edition Just Published!
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