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From "Dmitri Plotnikov" <dmi...@apache.org>
Subject Re: [JXPath] Plans for JNDI, JMX and Filesystems?
Date Sat, 03 Jan 2004 19:44:05 GMT
In my opinion, XPath is much too weak of a query language for relational
databases. What you want is something like XQuery, which is a superset of
XPath that includes relational semantics a la SQL.

I wonder if there is an open source project similar to JXPath, but with
XQuery as the base language.  I looked at the SourceForge project called
JXQuery.  Very interesting, but it does not appear to have ambitions beyond
XML applications. Did I misunderstand?

Mapping of XPath semantics to Java objects is a highly contraversial issue -
when I was building JXPath I had to make many decisions on that front that I
myself was not very comfortable with.  I can only imagine the magnitude of
this problem if we try to map XQuery to arbitrary object models.  Can
anybody see an easy solution there?

- Dmitri


----- Original Message ----- 
From: "Brian McCallister" <mccallister@forthillcompany.com>
To: "Jakarta Commons Users List" <commons-user@jakarta.apache.org>
Sent: Friday, January 02, 2004 11:15 PM
Subject: Re: [JXPath] Plans for JNDI, JMX and Filesystems?


> I don't know about these, but I am trying to talk any of the JXPathers
> into helping put together the ability to query persistent object models
> via OJB (which will mean building OJB queries from JXPath AST's or
> something)...
>
> -Brian
>
> On Jan 2, 2004, at 3:49 PM, Michael Nascimento Santos wrote:
>
> > Hey,
> >
> > I just would like to know if there are any plans for JXPath to provide
> > special support for navigating JNDI, JMX and filesystems.
> >
> > Thanks,
> > Michael
> >
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