You can also combine two XPath queries into one with an "or"
clause. I have heard it works, I haven't tried it. When I want
to do two different searches, I actually execute two searches and
then do an intersection or a union on the keys that are returned.
I suspect that you could do an "or" or an "and", depending on
whether you wanted a union or an intersection.
Mark
"Robert S. Koberg" wrote:
> Hi,
>
> Jeff Greif wrote:
> > I'm not sure I understand what you're proposing to do, but you cannot use
> > XPath to join multiple documents, as far as I know. Suppose I have the
> > XPath expression
> > /authorization/users/user/[EMAIL
> > PROTECTED]/authorization/groups/group/@id]
> > which is the revised version of your join query. How is the XPath processor
> > supposed to know that the two different appearances of /authorization stand
> > for two distinct trees, or whether it is supposed to find
> > /authorization/users and /authorization/groups in the same document? If you
> > want to join across multiple documents, you need to mash them into one
> > document first, *I believe*.
> >
>
> You could do something like:
>
> <xsl:variable
> name="ext_doc"
> select="document('/uri/resolved/to/something.xml')/authorization"/>
>
> then you could do:
>
> /authorization/users/user/[EMAIL PROTECTED]/groups/group/@id]
>
> best,
> -Rob
--
Mark J Stang
System Architect
Cybershop Systems
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