RE: XPath or XQuery

In principle both XPath and XQuery are capable of determining which
documents from a given collection of documents satisfy some condition.
XQuery differs from XPath in that it has richer capabilities for defining
the criteria.
 
In practice, the XPath and XQuery specifications speak of a "collection" of
documents at a very abstract level. Whether this collection can be mapped to
a set of documents in an operating system folder or directory depends on the
implementation. Many implementations are likely to work only on documents
that have been preloaded into a database. You are asking about product
features which have quite deliberately been left outside the scope of the
language specification.
 
Michael Kay

-----Original Message-----
From: Noemí Matías [mailto:nmatias2000@hotmail.com] 
Sent: 21 June 2003 12:13
To: public-qt-comments@w3.org
Cc: Noemí
Subject: XPath or XQuery


Hello all.
I´m new at XQuery and XPath and I´m not clear about how it works.
 
I have a set of xml documents in a directory and I need to select the
documents that satisfy a condition from a Java application. For example, to
select all documents whose node Name was 'John'. I don´t want to use any
kind of database. 
So, is it possible to make this query with XPath?. Can only XPath use to
make a query to one document or can it make querys to a set of documents?.
Should I use XQuery?.
Thanks in advance. 
 
 Noemí