​​Hi Ilko,

The repo folder was completely empty.

So you want to install it in the repository, using repo install?

My test was installing via copying the jar to basex/lib/ where it works (for me). If I use repo install I get the same problem as you.

This may be a bug/feature. It is possible that using the full EXPath Packaging [1] xar would work although I have not tried it. This would involve adding an XQuery file with expath-pkg.xml and basex.xml files to create a xar wrapping the jar, structured as here [2] The issue [3] may be relevant.

Regards /Andy ​ hello-test.jar https://drive.google.com/file/d/0B_HWsgek7hAeTjFnSFg3cGVpMXc/view?usp=drive_web ​ [1] http://docs.basex.org/wiki/Repository#Java_2 [2] https://github.com/expkg-zone58/metadata-extract/tree/master/src/main [3] https://github.com/BaseXdb/basex/issues/1413

On 8 May 2017 at 11:44, kovacic kovacic@dke.uni-linz.ac.at wrote:

Hi Andy,

I have removed all other existing modules before installing this module. The repo folder was completely empty.

Regards Ilko

Am 05.05.2017 um 19:29 schrieb Andy Bunce:

Hi IIko

Your code and:

declare namespace t='org.basex.modules.Hello'; let $obj := t:new('works for me') return t:hello($obj)

Returns:

Hello works for me

Could be be that you have multiple versions of the jar on the path?

Regards /Andy

On 5 May 2017 at 11:20, kovacic kovacic@dke.uni-linz.ac.at wrote:

...

Hi all,

I am running BaseX 8.6.3 currently and struggling with the inclusion of modules written in Java. I have extended the Hello World example:

package org.basex.modules;

public class Hello {

private String str = "BaseX";

public Hello() {}

public Hello(String str) {
    this.str = str;
}

public String hello(final String world) {
    return "Hello " + world;
}

public String hello() {
    return "Hello " + str;
}

}

I can pack it into a jar-file and install it successfully. My jar-file is structured as following:

hello.jar

• META-INF
  • MANIFEST.MF
• org
  • basex
    • modules
      • Hello.class

Here is the content of my manifest.mf:

Manifest-Version: 1.0 Main-Class: org.basex.modules.Hello

The methods of the Hello-class can be called without any problems when the module is imported:

import module namespace t='org.basex.modules.Hello';

t:hello('text')

However, when I try to explicitly create the object by calling the constructor (new) with arguments it fails:

declare namespace t='org.basex.modules.Hello';

let $obj := t:new('test')

return ''

When I try to call the constructor I receive the error [XPST0017] Unknown function: Q{org.basex.modules.Hello}new.

Since I am able to execute the FileWriter example ( http://docs.basex.org/wiki/Java_Bindings#Namespace_Declarations) which calls a constructor with an argument I would like to know if this behavior is a bug or if I am missing an important point.

Regards, Ilko

-- *Ilko Kovacic* Wissenschaftlicher Mitarbeiter Institut für Wirtschaftsinformatik - Data & Knowledge Engineering

*JOHANNES KEPLER UNIVERSITÄT LINZ* Altenberger Straße 69 Science Park III, S3 111 4040 Linz, Österreich T +43 732 2468 4286 <+43%20732%2024684286> ilko.kovacic@jku.at www.dke.jku.at