---------- Forwarded message ----------
From: Christian Grün <christian.gruen@gmail.com>
Date: 2013/1/22
Subject: Re: [basex-talk] Fwd: dynamic web application, XQJ, BaseX
To: marco fregonese <marcofregonese@gmail.com>, Charles Foster <charles@cfoster.net>
Cc: BaseX <basex-talk@mailman.uni-konstanz.de>

Marco,

thanks for the example. The reason for the error message is that your
query will be executed server-side, and the server has no information
on the working directory the client was started from.

Two possible solutions for that:
– if you place your modules in the module repository of your BaseX
server, there will be no need to specify the exact location [1]
– you could try to use the absolute path to your file (I agree this is
probably not the approach that’s most desirable)

I’ll be passing this question on to Charles Foster, the architect of
our XQJ implementation: what’s your experience with expressions that
import other modules?

Best,
Christian

[1] http://docs.basex.org/wiki/Repository
___________________________

> ---------- Forwarded message ----------
> From: marco fregonese <marcofregonese@gmail.com>
> Date: 2013/1/21
> Subject: Re: [basex-talk] dynamic web application, XQJ, BaseX
> To: Christian Grün <christian.gruen@gmail.com>
>
>
> There is a class in my Java web application that has a method that, after
> connecting to my BaseX database, execute a query on it.
> This query (associated to the "xquerystring" variable), after importing a
> library module and pointing the processor to the file containing the library
> module("library_module.xq"), uses the function "lib:getparts()".
> Now, after executing this method, I noticed that:
> with BaseX 7.3 the Xquery processor (o whatever it is, I don't know) looks
> for "library_module.xq" in the filesystem $HOME/basex/bin,
> while with BaseX 7.5 the processor looks for "library_module.xq" in $HOME.
> My question basically is: what is that makes the processor (or whatever it
> is) look for the file "library_module.xq" in $HOME/basex/bin (with BaseX
> 7.3) and in $HOME (with BaseX 7.5)?
>
> Hope I've been clear.
>
> Thanks
>
> PS: in BaseX GUI everything works fine: the XQuery processor looks for the
> file containing the library module in the same folder where the main module
> is.
> Example of main module:
>
> import module namespace lib="http://www.example.com/my_library_module" at
> "library_module.xq";
>
> lib:getparts()
>
> The following is the code of the class I've talked about:
>
> package xqu;
>
> import java.io.File;
> import java.io.FileNotFoundException;
> import java.io.FileOutputStream;
> import java.io.PrintStream;
>
> import javax.xml.namespace.QName;
> import javax.xml.xquery.XQConnection;
> import javax.xml.xquery.XQException;
> import javax.xml.xquery.XQExpression;
> import javax.xml.xquery.XQResultSequence;
>
> import con.Connection;
>
> public class Query {
>
> public static void getAllParts(String a, String sc) throws XQException,
> FileNotFoundException
> {
> File file = new File(sc);
> FileOutputStream fos = new FileOutputStream(file);
> PrintStream ps = new PrintStream(fos);
> System.setOut(ps);
>
> XQConnection con = Connection.getConnection();
> XQExpression xqe = con.createExpression();
>
> xqe.bindString(new QName("b"), a, null);
>
> String xqueryString =
> // using backslash for escaping "
> "import module namespace
> lib=\"http://www.example.com/library_module\"" +
> "at \"library_module.xq\";" +
> "declare variable $b external; " +
> "lib:getparts($b)";
>
> XQResultSequence rs = xqe.executeQuery(xqueryString);
>
> String b = rs.getSequenceAsString(null);
>
> con.close();
>
> System.out.println(b);
>
>
> }
> }
>
> 2013/1/20 Christian Grün <christian.gruen@gmail.com>
>>
>> Hi Marco,
>>
>> sorry for the late feedback. Can you reproduce the issues in the BaseX
>> GUI or on command line?
>>
>> Best,
>> Christian
>> ___________________________________
>>
>

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