CODEWITHSUNDEEP
xmlcommand-linexquerysaxon
cdarwin
cdarwin

Reputation: 4291

Automating xquery execution against multiple files with Saxon 9.6HE

I have a query that specifies in a file the document to read.

I need to execute this query against many files, so I'd need something like passing the filename from the commandline.

I don't know how to do this. How can I solve my problem?

An example of my query file is 

for $i in doc("myfile") 
return $i

and I'm running it with this commandline

#!/bin/bash
java -cp "./tagsoup/tagsoup-1.2.1.jar:./saxon/saxon9he.jar" net.sf.saxon.Query -x:org.ccil.cowan.tagsoup.Parser  $1

Upvotes: 2

Views: 517

Answers (1)

Michael Kay
Michael Kay

Reputation: 163262

The simplest approach is to pass the source document as the context item for the query. Change the query to

for $i in . return $i

(which simplifies to just ".")

and set the source document in the -s:source.xml option on the command line.

You can also declare external variables in the query and set them from the command line, for example

declare variable $uri external; doc($uri)

then

java net.sf.saxon.Query -q:query.xq uri=source.xml

I guess from the question that you didn't manage to find the documentation for the Saxon XQuery command line: it is here:

http://saxonica.com/documentation/index.html#!using-xquery/commandline

Note that although this is the direct answer to your question, you will get much better performance using the collection() approach suggested by @DanielHaley, because it avoids the overheads of initialising the Java VM and compiling the query for each file that is processed.

Upvotes: 2

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