XOM API for Processing XML with Java

[Randall R Schulz <rschulz AT sonic.net>]

Wolfgang,

On Wednesday 25 October 2006 11:52, Wolfgang Hoschek wrote:
> ...
> >
> > By the way, perhaps I should mention that I plan to use eXist for
> > XML persistence in the system I'm building.
>
>  From a XOM perspective, Nux adds features on top of XOM. Basically,
> I'd recommend to use plain XOM where that's sufficient and pull in
> those add-on features where they seem to have enough value for
> whatever problem you may have at hand.
>
> ...
>
> XOM is a main-memory XML model and can't be made persistent. I think
> the eXist database doesn't know anything about XOM, so for getting
> data in and out of eXist you'll probably wind up not using XOM at
> all, or converting XOM to and from some standard such as SAX, DOM or
> StaX.


I plan to use eXist as a free-standing service, not as a library 
component linked directly to my code. Thus I will interact with it 
using XML in text form and that is why I require XML handling to link 
into my existing code at the edges.

[
Further background:

I already have a large library of Java types that are to be made 
persistent in XML using eXist, and my intention is to use XOM (or Nux) 
in the conversion between those internal types and XML equivalents.

The source of the information represented by these internal types is a 
variety of human-oriented logic languages (KIF and the TPTP problem 
format, e.g.). The internal data structures are used by theorem-proving 
and logic programming algorithms. The purpose for the XML repository is 
largely to add support for creating human-interfaces for building and 
managing theory libraries and knowledge bases. So while there's a 
single internal representation for the formulas, there are several 
external ones, XML being the newest.

I might add that building Web interfaces using JSP and custom tags, (my 
first attempt) is much too tedious for my taste and still doesn't 
address content persistence. Using XML and its toolset gives me a huge 
leg up in persistence, content management and Web-based UI 
construction.
]


Randall Schulz