- BaseX-Talk - mailman.uni-konstanz.de

basex xsl:fo (Apache FOP) module?
by Maximilian Gärber 22 Feb '14

22 Feb '14

Hi, is there an integration of Apache FOP available? Regards, Max

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Query plan via REST interface?
by Christian Lang 21 Feb '14

21 Feb '14

Hi, is it possible to obtain the query plan via the BaseX REST interface? I tried: curl -i -X POST -H "Content-Type: application/xml" -d "<query xmlns=' http://basex.org/rest'><text>some_query_here</text><option name='xmlplan' value='true'/></query>" "http://xyz" but this only returns the query results, not the plan. Thanks, Christian

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Using Client/Server? How-to
by Pratik Kharwade 21 Feb '14

21 Feb '14

Hi, I am using BaseX to store certains documents. Till now as the DB was small, I alone was able to handle it ie.; check, modify etc etc. operations. Now the documents are in tons and I have kept 2 guys to work on the same, with proper training, I need to have a client-server setup. I have gone through the Database Server wiki. Being new to this kind of environment, I have few questions, might be quite basic, but strange to me :) As far as I know and have understood what I will have to do is - 1. I will have to keep the DB on a server with proper networking so that the clients can access the DB. 2. I will have to change the DB path on clients (in Preferences) and it would be the Server's path. 3. Instead of running the stand-alone, I will have to start Server and on clients, the BaseX Client. So far, I haven't tried this, as any mistake on my part or of employees' might damage the DB. I need a proper guidance to start with it. Regs Pratik

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fn:doc-available()
by Hans-Juergen Rennau 19 Feb '14

19 Feb '14

Dear BaseX team, I am puzzled by the behaviour of fn:doc-available when applied to a zip file: doc-available('/user/xsd/niem-2.1.zip') yields this error: [BXDB0006] Database path '/user/xsd/niem-2.1.zip' yields no documents. Kind regards, Hans-Juergen

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function parse-xml() very slow in embedded mode
by Johan Mörén 19 Feb '14

19 Feb '14

Hi I'm using BaseX in embedded mode (no database) and need to transform an xml payload that contains elements containing string-encoded xml in this form ... <str><objectInstance fetchDate="2014-02-14T13:00:53.374+01:00"> <createdDateTime>2012-12-04T08:55:26.195Z</createdDateTime> </objectInstance></str> ... I have both tried using xquery update (copy, modify) and with a simple identity-transform function that intercepts the <str/> element and replaces it with the results of parse-xml(.) When executing the query in BasexGUI both solutions performs very well. However if i invoke it via the QueryProcessor in my java-process it is 50 to 100 times slower. Any clues to what i might be missing? Regards, Johan Mörén

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Updating Functions and Custom Types
by Stefan Sechelmann 19 Feb '14

19 Feb '14

Hello BaseX Team, we are currently using BaseX with great success in a WebApp/Database environment. Firstly I want to thank you for the great work on version 7.8, we like the new new features very much. Here are two feature requests that we would love to see being included in the future: - We have a test suite that invokes various updating functions using the standalone client. On the other hand non-updating functions are tested by a query test suite using the unit module. It would be great to include the tests for updating functions into the xquery test suite thus removing the condition that a test function must not be updating. - Inside our restxq backend we have a lot of functions that pass complex data structures to other functions or receive them via http. In order for these functions to be correctly typed we would need custom type support via XML-schema includes. This would greatly improve the quality of our code. Greetings and best regards Stefan -- Stefan Sechelmann DFG-Forschungszentrum Matheon Mathematik für Schlüsseltechnologien Technische Universität Berlin Sekretariat MA 8-3 Tel. 030/314 29 486 Straße des 17. Juni 136 Fax 030/314 79 282 10623 Berlin sechel(a)math.tu-berlin.de http://www.math.tu-berlin.de/~sechel

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Revisiting XMLPrague
by Christian Grün 18 Feb '14

18 Feb '14

Dear subscribers, it was great to meet some of you live in Prague! And once again I would like to thank all our speakers (Lars Johnsen, Gerrit Imsieke, Yoann Maingon, Jean-Marc Mercier and Michael Sperberg-McQueen) for making the user meeting to a memorable event! Have fun with BaseX 7.8, and we are looking to your feedback, Christian PS: Maybe we'll see each other in London or Amsterdam, or at the Balisage? We'll tell you in time if we will be participating as well.

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issue with HTML:parse
by Sophie Petit 18 Feb '14

18 Feb '14

Dear BaseX team, I'm using BaseX for my studies with Xavier-Laurent Salvador from Paris13. I've got a puzzling issue with html:parse. I'm trying the request below using html:parse in order to get a list of the urls from a webpage and I'm getting this message error: "Ligne 19: Invalid character found: '"' " for $x in (html:parse(http:send-request( <http:request method='get' override-media-type=' application/octet-stream' href= 'http://www.crealscience.fr/'/ >) [2])//@href[matches(.,"http")]) return $x The same request gives this kind of output errors with any url. Html:parse stops at any error in the page's HTML code. A header with "declare option output:method "text";" was added to the request but it didn't solve the problem. If I insert the same request in a RestXQ file, it works perfectly. Do you have any suggestions to solve that problem? Best, Sophie Petit (basex 7.8 on debian)

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Sought: a pattern of file:list usage
by Hans-Juergen Rennau 18 Feb '14

18 Feb '14

Dear BaseX team, perhaps you have a recommendation concerning the use of the file module. The issue at hand is this. The function file:list (like any function in the file module, per EXPath specification) resolves relative paths against the current working directory. But the fn:doc function, on the other hand, resolves (per default) relative URIs against the static base URI of the containing XQuery module. If an application receives relative directories as external parameters and then obtains file names via file:list - how can one access the listed files, not knowing what the current working is, thus not knowing how to resolve those relative paths? As far as I can see, neither XQuery nor the file module offer a way how to learn the current working directory. One way out would be this pattern: avoid passing to file:list relative paths as supplied from without; but pass to the function always the result of resolving any relative paths against the static base URI of the tool. And, of course, specify your application to resolve relative paths against the tool URI, rather than against the working directory. It is a bit awkward to ask the user to specify relative paths against the tool location, but the only alternative which I now see would be to ask the user to supply the working directory explicitly. But perhaps I overlook something? Do you have a better solution to the general problem? Kind regards, Hans-Juergen

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Using BaseX as a standalone xquery library in Java
by Johan Mörén 18 Feb '14

18 Feb '14

Anything special to think about when using BaseX outside the database-context? I have built some solutions using the QueryProcessor for generating filesystem reports using the supplied modules for calculating file-sizes and checksums. I hava also built a number of wrappers for calling and aggregating results from web-services. All these queries are embedded and run in our normal java-processes. Everything has worked out really well. And BaseX gives you access to a lot of good functionality like XQuery 3.0 and a rich set of modules. But I'm a bit curious if there are any drawback or special things to think about with using Basex as a general xquery-library like you would use Saxon for example? Regards, Johan Mörén

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