Re: [xml-dev] java and xpath

[Liam Quin <liam@w3.org>]

On Tue, May 01, 2007 at 08:27:09AM -0700, c b wrote:
> so I shouldn't be utilizing the double-forward slash "//" but the
> single forward-slash since "//" goes to the root node and then gets
> all descendants?  I believe early-on I did do that but got a bit lost
> b/c I hit the default namespace prefix problem and just tried to make
> it work...

You're not alone, it's a common mistake.

>   therefore, I should be doing "/sdp:service/sdp:trip", correct?  Even
>   so, though, should I be using a different library?  XPathAPI vs  JAX
>   vs.. ?  can you make a recommendation

I'm not really able to make a recommendation, mostly because I don't
know enough about your application.

>   ... I am not sure how I would go about using XQuery from within Java
>   though...  it seems that is a better fit for jsp/html pages, etc.
>   why do you think that would be better for my purposes?
There are certainly some XQuery implementations that work with
(or as) servlets.

I don't know enough about what you're trying to do to be certain
what would be best for you.  I can only suggest that you consider
using XQuery.  Certainly on my own personal Web site, the
Search interface at http://www.fromoldbooks.org/Search/
was built with XQuery, and took only a couple of hours to have
something good enough to try out on the production server, and
less than a day to have fairly robust production code.  Most
of that time was spent getting a working cache.

Liam

-- 
Liam Quin, W3C XML Activity Lead, http://www.w3.org/People/Quin/
http://www.holoweb.net/~liam/ * http://www.fromoldbooks.org/