BaseX-Talk

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5250 discussions

BaseX 8.0: The XMLPrague 2015 Edition
by Christian Grün 09 Feb '15

09 Feb '15

Dear XML aficionados, We are proud to present you Version 8.0 of BaseX, your XML database system and XQuery processor (http://basex.org)! It is being released in alignment with the XML Prague 2015 Conference. We provide you with quite a bunch of new and exciting features: XQUERY - Support for XQuery 3.1 is nearly complete - We switched to a new default serialization ("adaptive") - Index rewritings have been improved, more precise cost estimations - MIXUPDATES option: update items and return results at the same time - New modules: Array and User Module - New annotations: %basex:inline, %basex:lazy - 13 of our modules were updated and extended WEB APPLICATIONS - DBA: Database Administration in the Browser - RESTXQ: regular expressions in paths, support for quality factors - AUTHMETHOD option: choose between Basic and Digest authentication STORAGE - Faster document index (storing paths to all XML documents) - Replace documents in-place whenever possible - Updatable index structures now take much less space - AUTOOPTIMIZE option: optimize after each update SECURITY - Revised user management; users are stored as XML - Digest authentication, Salted SHA256 - Clients in various languages updated GUI - Better code completions The documentation is available at http://docs.basex.org. We are looking forward to your feedback, Christian BaseX Team

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XSD 1.1 Validation
by Alex R. Loayza 07 Feb '15

07 Feb '15

Hello, I tried to use xsd-info() to validate using a schema 1.1. However, I got the following error: Fatal:s4s-elt-invalid-content.1: The content of '#AnonType_reporte' is invalid. Element 'assert' is invalid, misplaced, or occurs too often. According to the validation module documentation, said module uses "Java’s standard validators". Does this refer to Xerces? If not, is there a way to call Xerces to perform validation from BaseX? Or maybe any other way to validate with 1.1? Thank you. Alex

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USER option and WebDAV?
by C. M. Sperberg-McQueen 07 Feb '15

07 Feb '15

The documentation [1] says: The WebDAV service uses the database user credentials in order to perform authentication and authorization. If database user and password are explicitly specified when starting the BaseX HTTP Server using the corresponding startup options, WebDAV will not request additional user authentication from the client. [1] http://docs.basex.org/wiki/Webdav I take this to mean that if I start basexhttp from a directory my-app, with a .basex file containing, among other things, USER = myappuser PASSWORD = lips_are_sealed then when the client issues a PUT request against a URI of the form http://localhost:8984/webdav/my_app_dir/mydoc34.xml the PUT will be accepted and mydoc34.xml will be added to the database or updated there, depending on whether myappuser has WRITE privileges to the database my_app_dir. I also take it to be saying that the WebDAV server will not ask the client for credentials. (This last is important to me because it appears that in some Web browsers an XForms submission that requires credentials will cause the browser to ask the user for userid and password, and in other browsers the submission will fail silently. If I can just have BaseX use the application-specific user quietly, that will work fine for this particular application.) However, what I'm seeing suggests that WebDAV is not using the userid specified in the .basex configuration file -- in my tests, one browser is prompting me for credentials and another is failing silently. I suppose that what I'm seeing may be consistent with an error in the password in the .basex file, but I have tried it with passwords that are hard to mistype, so I don't think that that's it. I have not found a command to ask the server what user I currently am (the equivalent of whoami). Am I misreading the documentation? -- **************************************************************** * C. M. Sperberg-McQueen, Black Mesa Technologies LLC * http://www.blackmesatech.com * http://cmsmcq.com/mib * http://balisage.net ****************************************************************

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Are WebDAV authorization failures returning 200? Or is the BaseX log being optimistic?
by C. M. Sperberg-McQueen 06 Feb '15

06 Feb '15

I'm a little puzzled. As other mail (just sent) describes, I'm having some trouble getting PUT requests to work in some browsers; as far as I can tell, the current cause is that WebDAV is requesting credentials for the PUT, and the browser is not asking the user for the credentials. However, when a PUT request fails for lack of credentials, or for wrong credentials, I would expect the request to return an HTTP 401. Instead, the BaseX log seems to show 200 requests, both for the initial request from the client without credentials, and for the second request, whether the second request was made with correct credentials (and succeeded) or with bad credentials (and failed). Is the WebDAV service really returning a 200, or are the logs inaccurate? -- **************************************************************** * C. M. Sperberg-McQueen, Black Mesa Technologies LLC * http://www.blackmesatech.com * http://cmsmcq.com/mib * http://balisage.net ****************************************************************

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installation error while installing BaseX80-20150205.202308.exe on windowsmachine
by Rob Stapper 06 Feb '15

06 Feb '15

HI, See subject. Rob --- Dit e-mailbericht is gecontroleerd op virussen met Avast antivirussoftware. http://www.avast.com

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Iter.get() giving null
by ankit kumar 06 Feb '15

06 Feb '15

Hi, I am trying to execute a query in java and trying to fetch the result set using Iter Object. But Iterating through the result set return "null", but when i am executing the same query and getting Result object i am able to see the result set. Why this is happen. Please Help Me. QueryProcessor pr = new QueryProcessor("let $a := /data/product/* return $a ",context); pr.context(dataset); Now I am taking Iter object as: Iter itr=pr.iter(); Now, executing itr.get(0) gives me "null", but when i execute it as Result rs = pr.execute() Sytem.out.println("Products ::" + rs) ... it shows the fetch products. But, also itr.next().serialise() also gives me the result.

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BaseX for dummies part 2
by Paul Swennenhuis 06 Feb '15

06 Feb '15

Hi all, I am happy to announce that part 2 of my BaseX for dummies is ready. It deals with deploying and configuring BaseX on a virtual Amazon Web Services server. See http://docs.basex.org/wiki/Getting_Started, or go directly to http://www.swennenhuis.nl/basexfordummies/BaseX_for_dummies_part_2.pdf Best regards, and happy days! Paul

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Main Memory Allocation For Fetch Data In BaseX
by ankit kumar 06 Feb '15

06 Feb '15

Hi, We have requirement to group elements on specific criteria. We are grouping by creating a new XML and grouping similar elements by creating a new element under which we are putting the similar elements. I just wanted to know whether all fetched element resides in Main Memory or some kind of reference is stored in basex which later retrieve the elements form XML database. Suppose we have in some element in database. We are firing queries in database and grouping by append some new element. let $a := /data/product[@category = "abc"] let $b := /data/product[@category = "bcd"] let $c := <product><abc>{$b}</abc><bcd>$b</bcd></product> My question is, Will $c hold all the xml data in main memory or will it contains reference to $a , $b which points to the data in database ?. Thanks $ Regards Ankit Kumar

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duplicate keys, because of missing commit
by Christoph Gaukel 06 Feb '15

06 Feb '15

Hallo, the following xquery results in duplicate keys or missed updates, if we get two messages of the same person in one xml-document. All updates in the database are done at the end of the xquery and the reading inbetween gets the old state of the database. Is there a command to persist the actual state (like commit in sql)? If not, i need some help for my design, because i have no idea, how to get a stable processing. Kind regards, Christoph (: Verarbeitung einer Bestandslieferung (1600). :) declare namespace xmeld="http://www.osci.de/xmeld21"; declare namespace kmeld="http://www.krz-swd.de/kmeld"; import module namespace kmeldFkt="http://www.krz-swd.de/kmeld/Fkt" at "kmeldFkt.xq"; declare variable $file := "/home/christoph/Beruf/KRZ/Referenznachrichten/16.001.001.001a-1600.xml"; for $s in doc($file)/xmeld:kirche.bestandslieferung.1600/xmeld:sachzusammenhang, $k in $s/xmeld:initialGeliefertesKirchenmitglied/xmeld:kirchenmitglied let $n := $s/preceding-sibling::xmeld:nachrichtenkopf, $key := kmeldFkt:bildeIdMitglied($n, $k), $m_alt := (: Mitglied im Bestand :) collection("XMeldDB")/kmeld:XMeldDB/kmeld:personenbestand/kmeld:Mitglied[@ID eq $key] let $m_neu := if ($m_alt) then kmeldFkt:updateMitglied($m_alt, $k, $s, $n) else kmeldFkt:createMitglied($k, $s, $n) return if($m_alt) then replace node $m_alt with $m_neu else insert node $m_neu into collection("XMeldDB")/kmeld:XMeldDB/kmeld:personenbestand

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Startup scrips for RHEL/Centos/Fedora?
by Gioele Barabucci 05 Feb '15

05 Feb '15

Hello, the RHEL/Centos/Fedora packages do not contain the /etc scripts needed to lauch BaseX as a normal chkconfig service. Has anybody written such scripts? Could they be distributed inside the packages? Regards, -- Gioele Barabucci <gioele(a)svario.it>

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