XOM API for Processing XML with Java

[Wolfgang Hoschek <whoschek AT lbl.gov>]

As far as I can see (and I've seen no explanation or solid argument  
to the contrary) these trial impls have no merit at all, not in time,  
not in space, not in robustness, compactness, or in any other way.  
Feel free to make a convincing case, but please, to safe everyone's  
time, preferably after you've actually run those through a solid test  
and benchmark harness.

Plus, as I said it's a *bug* to put a QName into the cache before it  
has been determined that it lexiaclly conforms to the XML spec.  
Subsequent get() are not checked because the assumption is that  
whatever is in the cache has been checked previously, ensuring one  
cannot get non-XML nonsense from the cache.

Wolfgang.

On Jun 13, 2005, at 1:03 PM, norwoods wrote:

> i would like to try a least the cases of a cache for all QNames as  
> in QName2 and a possibly partial cache as in your proposal  
> implemented in QName4.  i do not check validity in these  
> implementations because they are synchronized and validity checking  
> can be done out of sync.
>
> norwood sisson
>
> Wolfgang Hoschek wrote:
>
>
> > I have no idea what you're trying to achieve with all those  
> > trials  beyond what I proposed.
> >
> > Also you seem to ignore lexical and semantic XML QName checking.  
> > If  you take that into account then QName, the cache, and its  
> > usage  should be separted rather than intermingled. The last thing  
> > anyone  wants is to get() a QName from a cache that does not  
> > conform to the  XML spec (since it has been put() into the cache  
> > before checking it).  Also note that QName.intern() and the  
> > lexical checks are not always  necessary, for example consider  
> > Element.build() as called from a  NonVerifyingXOMHandler.
> >
> > Wolfgang.
> >
> > On Jun 13, 2005, at 12:27 PM, norwoods wrote:
> >
> >
> > > here is another attempt at a cache.  this uses an LRUCache.  it  
> > > can  return a QName object with the methods qName=QName3.newQName 
> > > (name,  uri); or qName=QName3.newQName(QName3.qualifyName 
> > > (prefix,  localName), uri);