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

server time out
by Cerstin Elisabeth Mahlow 05 Jun '13

05 Jun '13

Hi, I run several web applications using various CGI scripts to read and update BaseX databases via various XQUERIES. I use the "basexserver -S" command to start the server on a CentOS Server. Maybe this is not the very best idea. I already split the data into various databases to avoid concurrent reading and writing. And I have a simple cron job running, that tests whether the BaseX server is still running and restarts it if it isn't running any more. However, my users get (or rather create) a time out from time to time. If the basex server then shut's down, the cron job would restart it and everything is fine again. In the last weeks, however, I discovered that after such a time out the Basex server seems to still be running, but doesn't answer any xquery any more. So I have to kill the process by hand and restart it again. Could you recommend a better solution to ensure smooth running of the Basex server even it sometimes a time out occurs? Thanks in advance and best regards Cerstin -- Dr. phil. Cerstin Mahlow Universität Basel Departement Sprach- und Literaturwissenschaften Fachbereich Deutsche Sprach- und Literaturwissenschaft Nadelberg 4 4051 Basel Schweiz Tel: +41 61 267 07 65 Fax: +41 61 267 34 40 Mail: cerstin.mahlow(a)unibas.ch Web: http://www.oldphras.net

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Using an XSD with BaseX (to provide extra type information)
by Ludovic Kuty 05 Jun '13

05 Jun '13

Hello, I would like to know if BaseX will use the XSD referenced in an XML document to get extra informations about types (he PSVI) and if it will validate the document in the process. If it does so, where do I have to store the XSD ? I would like to store it inside the database itself (or another one). I could also store it in the Web application provided by BaseX and make my URL point to it. In my opinion, the use of the validation module should not be necessary as it should happen automatically. Thank in advance for your insights and informations, Ludovic Kuty

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Logging Modules/Framework for XQuery
by Dustin Schultz 04 Jun '13

04 Jun '13

Hi, I'm wondering if there are any logging frameworks available for XQuery? I've searched around and can't find much other than the built in fn:trace and fn:error functions. I'm looking for something that can log to different levels (e.g. INFO, DEBUG, ERROR) but also be disabled for no output. I was thinking it would be something built around fn:trace and fn:error. I've considered writing a RESTful logging service – have others used this approach? Thanks, Dustin

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led under water light offer
by crystal2 04 Jun '13

04 Jun '13

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Re: [basex-talk] regarding web app. Development REST
by Arve Gengelbach 04 Jun '13

04 Jun '13

Hi Prakash, Perhaps this is interesting for other BaseX users aswell. Nice to hear our slides from the [BaseX User Meetup] at the recent XML Prague helped you. Did the [REST] article from our documentation help you? And regarding RESTXQ: Is there something you missed in the [RESTXQ] article? cheers Arve [BaseX User Meetup] http://files.basex.org/xmlprague2013/ [REST] http://docs.basex.org/wiki/REST [RESTXQ] http://docs.basex.org/wiki/RESTXQ Am 03.06.13 23:28, schrieb Prakash Thapa: > Hi Arve Gengelbach, > I found really nice slide about RESTXQ based web App. development in basex from http://files.basex.org/xmlprague2013/slides/Develop-RESTXQ-WebApps-with-Bas… which I was searching for long time. is there any link exact same format with REST not RESTXQ? git hub link would be great helpful. thank you > > regards > Prakash >

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XML London 2013, 2 days left to register
by Charles Foster 03 Jun '13

03 Jun '13

Calling all XML Aficionados!, XML London is a 2 day XML conference which will be held in central London on the weekend of 15th-16th June. There is a great line up of speakers, with exciting talks about new developments in XML and related technologies, such as XQuery, XSLT, XProc, XForms, the Semantic Web and SPARQL! There will be a Social Dinner on the Saturday night which promises to be great fun with a DemoJam for entertainment!! The full conference programme is available here: http://xmllondon.com/programme.jsp A full conference pass costs just £249 + VAT. Additional Social Dinner tickets for spouses cost just £60 + VAT each. There are student conference passes available at a discounted rate as well as group booking discounts. There are 2 days left to register for the conference to get a guaranteed social dinner place. Our caterers reasonably require 7 days notice of both the delegate numbers and their dinner choices, whilst we may still take Conference registrations after 5th June, we cannot guarantee a Conference Dinner, nor a choice of dinner. Regards, Charles Foster XML London, Programme Committee

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how to find a possibly corrupted node?
by Cerstin Elisabeth Mahlow 31 May '13

31 May '13

Hi, I have several databases basically consisting of several entries like this one: <entry> <lastChange>2013-04-30T08:20:00</lastChange> <user>marcel</user> <phraseme>Ad0190</phraseme> <annotated>no</annotated> <negation>?</negation> <genus>?</genus> <mediality>?</mediality> <meaning>?</meaning> <sentence>?</sentence> <question>?</question> <node>85750</node> <query>[text() contains text ('über' ftand 'den' ftand 'Hals' ftand 'kommen') distance at most 10 words]</query> <p>Gar gewiß hätte sie selbst der Teufel lebendig hingeführt, oder der Donner in die Asche gelegt, oder die Erde lebendig verschluckt, oder den wilden Thieren zum Raub worden, weil sie sich aber der Todten haben angenommen, so konnte sie kein zeitliches Unglück berühren. Nolite timere so fürchtet euch dann nicht, alle Liebhaber der armen Seelen im Fegfeuer, es kann euch so bald kein Unglück über den Hals kommen, die Todten helfen den Lebendigen.</p> <meta>?</meta> <semantics>?</semantics> <comment/> <merged>no</merged> <cite>?</cite> <sem>?</sem> <note/> </entry> For the web-application I run with ExtJS, I extract some data like the values for <user> etc. I also need the text stored in the <p> node, and I use the xquery stored in the <query> node as argument for ft:mark. So this part basically looks like this one: for $i at $p in //entry let $q := $i/query let $annotated := string($i/annotated) let $t := if ($i/p) then $i/p else $i/l let $ft :=concat("ft:mark($binding", $q, ")") let $bm := map{'$binding' := $t} return <div>{if ($annotated = "no") then xquery:eval($ft, $bm) else $t}</div> I get the query and the text and then apply the query to the text depending on the value for <annotation>. This works fine for most of the databases. However, for six or seven, I get a time-out, regardless of the size of the database. It works OK with DB consisting of several hundreds or only a dozen of such entries, but it does not work for the one I attach here as XML source (I created the DB via another xquery with whitespace chopping off and UPDINDEX ON, all indexes have been created. It is valid XML as far as I can see.) I tested it with the GUI, I use BaseX 7.7beta from April 24, with VM=-Xmx512m. If I change the return expression to: return <div>{if ($annotated = "no") then ($q, $t) else $t}</div> I get a result for all entries in about 35ms. And this query plan: Compiling: - simplifying descendant-or-self step(s) - converting descendant::*:entry to child steps - removing redundant $p as xs:integer cast. - atomic evaluation of ($annotated = "no") - inlining let $annotated := fn:string($i/annotated) - atomic evaluation of (fn:string($i/annotated) = "no") - removing variable $annotated - removing variable $ft - removing variable $bm - inlining let $q := $i/query - removing variable $q - inlining let $t := if($i/p) then $i/p else $i/l - removing variable $t Optimized Query: for $i at $p in document-node { "annotate-Ad0190.xml" }/*:root/*:entry return element div { (if((fn:string($i/annotated) = "no")) then ($i/query, if($i/p) then $i/p else $i/l) else if($i/p) then $i/p else $i/l) } Result: - Hit(s): 72 Items - Updated: 0 Items - Printed: 759 KB - Locking: local [annotate-Ad0190] Timing: - Parsing: 0.0 ms - Compiling: 1.14 ms - Evaluating: 34.44 ms - Printing: 7.8 ms - Total Time: 43.4 ms Query plan: <QueryPlan> <GFLWOR> <For> <Var name="$i" id="1"/> <at> <Var name="$p" id="0"/> </at> <IterPath> <DBNode name="annotate-Ad0190" pre="0"/> <IterStep axis="child" test="*:root"/> <IterStep axis="child" test="*:entry"/> </IterPath> </For> <CElem> <QNm value="div" type="xs:QName"/> <If> <CmpG op="="> <FNAcc name="string([item])"> <CachedPath> <VarRef> <Var name="$i" id="1"/> </VarRef> <IterStep axis="child" test="annotated"/> </CachedPath> </FNAcc> <Str value="no" type="xs:string"/> </CmpG> <List> <CachedPath> <VarRef> <Var name="$i" id="1"/> </VarRef> <IterStep axis="child" test="query"/> </CachedPath> <If> <CachedPath> <VarRef> <Var name="$i" id="1"/> </VarRef> <IterStep axis="child" test="p"/> </CachedPath> <CachedPath> <VarRef> <Var name="$i" id="1"/> </VarRef> <IterStep axis="child" test="p"/> </CachedPath> <CachedPath> <VarRef> <Var name="$i" id="1"/> </VarRef> <IterStep axis="child" test="l"/> </CachedPath> </If> </List> <If> <CachedPath> <VarRef> <Var name="$i" id="1"/> </VarRef> <IterStep axis="child" test="p"/> </CachedPath> <CachedPath> <VarRef> <Var name="$i" id="1"/> </VarRef> <IterStep axis="child" test="p"/> </CachedPath> <CachedPath> <VarRef> <Var name="$i" id="1"/> </VarRef> <IterStep axis="child" test="l"/> </CachedPath> </If> </If> </CElem> </GFLWOR> </QueryPlan> For the original query, i.e., applying ft:mark, I only get a "Out of main memory error" after roughly 60000ms. I don't see any suspicious going here. Do you have any idea what might be the reason for the time out? All other information I extract are returned in less than 100ms, the ft:mark seems to be the issue. Is there any way I can find out which of the entries is causing the time out? Thanks in advance and best regards Cerstin -- Dr. phil. Cerstin Mahlow Universität Basel Departement Sprach- und Literaturwissenschaften Fachbereich Deutsche Sprach- und Literaturwissenschaft Nadelberg 4 4051 Basel Schweiz Tel: +41 61 267 07 65 Fax: +41 61 267 34 40 Mail: cerstin.mahlow(a)unibas.ch Web: http://www.oldphras.net

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Perl and BaseX question (add document to existing db)
by m4058＠aol.com 30 May '13

30 May '13

I'm trying to add a document to an existing dababase xmark. Any idea on how to do this with Perl? $session->execute("create db database"); (would like the existing database xmark in here) print $session->info()."\n"; # add document $session->add("world/World.xml"); Thanks Mark Shortt

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namespaces and the doc() function: conflicting prefix bindings persist past their scope?
by C. M. Sperberg-McQueen 29 May '13

29 May '13

I'm having a puzzling experience with BaseX 7.6 running under Mac OS X 10.6.8. Consider the following document, in my file system as test.xml: <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <xsd:element name="back"/> <xsd:element name="body"> <xsd:annotation xmlns:xsd="http://www.w3.org/2000/10/XMLSchema"/> </xsd:element> <xsd:element name="bold"/> </xsd:schema> The query doc('.../test.xml')//xs:element returns not three elements, but just the first two. The third element is encountered after the prefix 'xsd' was temporarily rebound to a different namespace, and it is not recognized as being in the same namespace as the other 'element' elements. (Further investigation shows that the system believes it to be in namespace http://www.w3.org/2000/10/XMLSchema.) Some observations: - The behavior has nothing to do with the specific namespace or the fact that the XSD namespace is predefined; analogous behavior occurs with the following document: <a:a xmlns:a="http://example.com/a"> <a:b/> <a:b> <x xmlns:a="http://example.com/x"/> </a:b> <a:b/> </a:a> - If a database is built using the document just given, the query declare namespace foo = "http://example.com/a"; //foo:b returns two elements, not three. In my tests, it appeared not to matter whether I checked or unchecked the 'Use internal XML parser' box; I got two elements either way. - The behavior changes if the document is given literally in the query; the following query returns three {http://example.com/a}b elements, not two: declare namespace foo = "http://example.com/a"; let $doc := <a:a xmlns:a="http://example.com/a"> <a:b/> <a:b> <x xmlns:a="http://example.com/x"/> </a:b> <a:b/> </a:a> return $doc//foo:b Is this a bug, or am I doing something wrong? It looks as if something were going wrong in the XML parser's management of namespace bindings. Thanks for any light you can shed on the matter. In the short run I suppose I can try to revise my XSLT to suppress the unnecessary namespace rebindings. -- **************************************************************** * C. M. Sperberg-McQueen, Black Mesa Technologies LLC * http://www.blackmesatech.com * http://cmsmcq.com/mib * http://balisage.net ****************************************************************

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'http://apache.org/xml/features/xinclude' is not recognized.
by subbarao＠intense.in 28 May '13

28 May '13

Dear Basex, Does basex use any of the external xml parsers when it is running on some application server.In one of my server iam getting this exception org.basex.core.BaseXException: "file:/test/59813751_0.XML": Feature 'http://apache.org/xml/features/xinclude' is not recognized what might be the possible reasons for the above exception. Thanks & Regards Subbu

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Upload non xml files to basex
by nestor vb 27 May '13

27 May '13

Hello everyone: I was just wondering if is it possible to upload another file types to basex, for instance upload an xml with the lyrics of a song an upload a sample mp3 for instance. Regards, Nestor

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Re: [basex-talk] Storing and reading data - migrate from exist-db
by Christian Grün 27 May '13

27 May '13

Hi Bartosz (cc @basex-talk), if you want to cache your data in temporary files without losing synchronicity, you may take advantage of the (yet undocumented, but stable) locking options that have been introduced with BaseX 7.7. The following example query... declare option query:write-lock "file-io"; file:write-text("x.txt", '123') ...ensures that all other queries with a read-lock or write-lock option on the (arbitrarily chosen) "file-io" string, such as e.g.… declare option query:read-lock "file-io"; file:read-text("x.txt", '123') …will be queued until the query has been evaluated. Next, please note that XQuery demands that a doc() function in a query will always return the same document instance. In your example, this means that the second doc() function won’t repeatedly access the source file, but instead return the existing document node reference. You may surpass this by using fetch:text() or file:read-text() and parse-xml(): let $path := $path || '/index.xml' let $indexold := parse-xml(file:read-text($path))//index let $indexnew := <index>{ $indexold + 1 }</index> let $filewrite := file:write($path), $indexnew) let $index := parse-xml(file:read-text($path)) If you want to use pure XQuery (Update/3.0), however, you’ll have to split your query into several files, or you can use the helpful transform expression [1], which allows you to create updated main-memory instances, which can then be stored in databases or processed any other way. An example: copy $doc := parse-xml(file:read-text($path)) modify replace value of node $doc//index with $indexold + 1 return $doc As your problem is quite a frequent one, there’s some good chance that an upcoming version of XQuery Update will allow both updates and returned results in one query. I hope this gives you some inspiration, Christian [1] http://docs.basex.org/wiki/XQuery_Update#transform ___________________________ On Mon, May 27, 2013 at 12:44 PM, Bartosz Marciniak <marciniak.b(a)gmail.com> wrote: > Christan, > what I mean is reading updated data from db and then binding them to a > variable by let expression. > > > Initially, I tried to use file:write() function to store temporaty data in > the external file > using following solution: > > let $indexold := doc(concat($path , '/index.xml'))//index > let $indexnew := <index>{$indexold + 1}</index> > let $filewrite := file:write(concat($path , '/index.xml'), $indexnew, ()) > let $index := doc(concat($path , '/index.xml')) > > but I discoverd that the file:write() function is not synchronized. So I > tried to store temporary data in the db. > > > I hope I clearly presented the problem, if not please forget about that :-) > > > regards > Bartosz > > > > > > 2013/5/27 Christian Grün <christian.gruen(a)gmail.com> >> >> Hi Bartosz, >> >> ..what do you mean exactly with "the result"? >> >> Best, >> Christian >> >> > Christian, >> > thank you very much. This example works and explained a lot to me. >> > But could you just explain is it possible or not to evaluate further the >> > result? > >

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invalid collection name?
by C. M. Sperberg-McQueen 27 May '13

27 May '13

Using the GUI interface to BaseX 7.2, when I select Database / Open and Manage ..., I get a list of the databases I have built over the time I've been using BaseX. When I try to open the collection named MEP.bigbooks, though, I get an error box saying "Name 'MEP.bigbooks' is invalid." In the "Manage Databases" dialog box, the information about the collection appears normal and plausible (at least, the size is about what I expect, and so on). It's only when I try to open the collection that I run into the error. I get similar errors on other collections which have . in their name; I do not get errors when opening other collections built (as far as I can remember) at the same time from the same data, if their name does not include a full stop. When I try renaming the collection without the full stop, I get the same error message. When I try to issue the command ALTER DATABASE MEP.bigbooks MEPbigbooks from the server command area of the GUI, I get a short syntax summary in the Query Info area complaining about the syntax of the command. When I replace MEP.bigbooks with MEP\.bigbooks and "MEP.bigbooks", I also get syntax errors. If I close the GUI and just rename the directory within my BaseXData directory, the database appears to open normally. I think I have two questions: Q1 is just renaming the directory a safe way (assuming no server is currently working with the data) to rename a collection? Should I do the same for all the other collections I have that don't currently open? I assume that if the 7.2 GUI won't let me rename them, it also will have trouble deleting them, so a related question is: is just deleting a sub-directory of BaseXData a safe way to delete a collection? Q2 Did the rules for names of collections change? Or is there some other cause? Speaking for myself, I guess that as a user I haven't thought much about what characters should be allowed in collection names, but I may have assumed that if they are not unrestricted, they would be restricted to being legal NCNames. I do kind of like using dots in names, so you can count this as one vote for relaxing the naming rules at some convenient moment. It's not a really important point, of course. best, Michael -- **************************************************************** * C. M. Sperberg-McQueen, Black Mesa Technologies LLC * http://www.blackmesatech.com * http://cmsmcq.com/mib * http://balisage.net ****************************************************************

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Storing and reading data - migrate from exist-db
by Bartosz Marciniak 27 May '13

27 May '13

Hello, I'm trying to rewritte XQuery prepared for exist-db into baseX. I have a problem with storing data in the database. In exist-db xmldb:store() function returns a string and there is no problem to create let/return construct. Is it possible to create a similar solution in baseX? --- exist-db ----------------------------------------- xquery version "3.0"; declare function local:indexget() as item()* { let $index := doc('db/index.xml') return xs:integer($index/index/text()) }; declare function local:indexset($index as xs:integer) as xs:string? { let $newresource := xmldb:store('/db','index.xml', <index>{$index}</index>) return $newresource }; let $indexnew := local:indexget() + 1 let $newresource := local:indexset($indexnew) return local:indexget() ---------------------------------------------------- And these are baseX functions I wrote, but I don't know if is it possible to create solution similar to above? Can anyone help me solve this problem? ---- BaseX ---------------------------------------------- declare function local:indexget() as item()* { let $index := doc('/home/index.xml') return xs:integer($index/index/text()) }; declare %updating function local:indexset($index as xs:integer) { db:replace('index', 'index.xml', <index>{$index}</index>) }; (....) ------------------------------------------------------------ Regards Bartosz Marciniak

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Full Text Indexing 8 GB DB !!
by John Best 27 May '13

27 May '13

Hi Team, I have a XML DB with approx 8 GB in size. The size of the DB will go on increasing through monthly updates. The size of monthly update will be around 10 MB in size.As the DB is storing text documents, I will have to index the full-text index again, after updating to speed up the process. Sometimes, I get Heap Space error too !! My DB will be stored at the user end. Then how come I will be able to Optimize it? Also the DB is created using a huge XML file. After viewing the Statistics (http://docs.basex.org/wiki/Statistics), I came to understand that the size of my DB is stands no where, when compared to at least, first 15-16 entries !!. This situation has always troubled me a lot. May be I am doing it in wrong way.. Can you guys put light on this? -- Have a nice day JBest

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BaseXClient.php lacking more() and next()
by James Ball 26 May '13

26 May '13

Hello, I'm new to BaseX but am finding it very useful for somethings I'm working on. Today I've been working with the BaseX client for PHP and QueryExample.php fails for me saying the functions more() and next() are not defined. I'm not a PHP expert so I'm not sure if there is another way of achieving the same thing - but I did find an email chain on this list from April which suggested that the functions were missing and needed to be written by someone. I have taken the Ruby client as a guide and created the two functions in PHP but I'm just not sure that I've done it in the neatest way. 1) Is there a better way in PHP to get each result of a query so that more() and next() are not needed? 2) If not might my version of these functions be useful? If so, what is the process for submitting code? Thank you for your help. Regards, James Add two class variables $pos and $cache. public function more() { if ($this->cache == NULL) { $this->pos = 0; $this->session->send(chr(4).$this->id.chr(0)); while (!$this->session->ok()) { $temp = $this->session->readString(); $this->cache[] = $temp; } } return $this->pos < count($this->cache); } public function next() { if($this->more()) { return $this->cache[$this->pos++]; } }

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WSSE + basex
by Marco Lettere 24 May '13

24 May '13

Hello all, I'm currently learning about using Web service security for adding security related tokens to SOAP messages. The basex functions of the crypto module come in very handy. I'm a bit confused on how to put the signature inside the proper headers of the soap message. Are there any hints? Thank you. M.

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Re: [basex-talk] Processor for xsl.fo to create a pdf output
by Arve Gengelbach 24 May '13

24 May '13

Hi Elisabeth, Within XQuery, using the [Process Module], you could invoke any java based FO Processor as a java process. But therefor you first have to write the file to disk to hand it in as an argument. For example: proc:execute("java", ( "-Djava.awt.headless=true", "-classpath", $classpath, "org.apache.fop.cli.Main" (: , ... :) )) Depending on the FO Processor you use, refer to the invoking shell or batch script to see what arguments the java process needs. Hope this helps Arve Am 24.05.13 15:53, schrieb content agentis: > Is there a processor for *.fo files to create a pdf-file? > > This *.fo file is the result of a xsl-transformation and in the database. > > Outside the database I use the fop processor. Can this processor be > integrated and used in the database? > > How and what are the commands (xquery and command)? > > Best regards > > Elisabeth > > /____________________________________/ > > // > > /content///*agentis* > > Elisabeth Paul > > Marie-Curie-Straße 2 > > 79211 Denzlingen > > 07666/8813162 > > mailto: elisabeth.paul(a)contentagentis.de > > www.contentagentis.de > > > > _______________________________________________ > BaseX-Talk mailing list > BaseX-Talk(a)mailman.uni-konstanz.de > https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk > -- Arve Gengelbach, BaseX GmbH, http://basex.org |-- Firmensitz: Blarerstrasse 56, 78462 Konstanz |-- Registergericht Freiburg, HRB: 708285, Geschäftsführer: | Dr. Christian Grün, Dr. Alexander Holupirek, Michael Seiferle `-- Phone: 0049 7531 28 28 676, Fax: 0049 7531 20 05 22

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Processor for xsl.fo to create a pdf output
by content agentis 24 May '13

24 May '13

Is there a processor for *.fo files to create a pdf-file? This *.fo file is the result of a xsl-transformation and in the database. Outside the database I use the fop processor. Can this processor be integrated and used in the database? How and what are the commands (xquery and command)? Best regards Elisabeth ____________________________________ content agentis Elisabeth Paul Marie-Curie-Straße 2 79211 Denzlingen 07666/8813162 mailto: elisabeth.paul(a)contentagentis.de www.contentagentis.de

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using data() is slow!
by James Wright 22 May '13

22 May '13

Hey Again, Sorry if I am here often. I got my system up and running and at first was seeing 1 second query times which is unacceptable. I started doing some research and trying different things. Here are some interesting things I found: 1) Using data() is SLOW!!! For example: (//DataElement(data(Name) = 'Transformer'])[1] : this takes 350 ms avg to complete (Most of it evaluation)(//DataElement(Name = 'Transformer')[1] : this takes 4 - 10 ms. Not sure why this is, but its good to know. I'm assuming the data() usage circumvents the indexes or something... 2) In a dynamic context is often worthwhile to 'construct' a query with the names embedded and execute xquery:eval rather than using variables within the expression. For example when trying to find a node based on a key property name which you don't know until run time: ($page:database//DataElement[(*|@*)[name() = $keyPropName)] = $entityId])[1] Above query takes about 1200 ms to complete in our data. If you have more than one of these being executed, it jumps to 10,000 ms or more!! xquery:eval("($context//" || $entityListName || "[" || $keyPropertyName || " = $entityId])[1]", map{ '$context' := $page:database, '$entityId' := $entityId }) This query takes between 2 - 8 ms to complete. Awesome!! Just thought I would share my findings! So far I am really enjoying BaseX!! Thanks for all the hard work! - James

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Support for "Feature 'http://apache.org/xml/features/xinclude' is not recognized."
by subbarao＠intense.in 22 May '13

22 May '13

Dear BaseX, I am getting following exception while creating XML DB org.basex.core.BaseXException: "file://XML/Backup/149874654.XML": Feature 'http://apache.org/xml/features/xinclude' is not recognized. at org.basex.core.Command.execute(Command.java:73) at org.basex.core.Command.execute(Command.java:85) at core.data.CRSXqueryComp.addXML(CRSXqueryComp.java:123) And following are the Jars files using in my project BaseX671.jar basex-api.jar xmldb-api-1.0.jar xom-1.2.1.jar xwork-2.0.4.jar xalan.jar xalan-2.7.0.jar xercesImpl-2.9.1.jar xml.jar xml-apis.jar Please suggest me the way forward. Thanks & Regards Subbu

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Quick question regarding subsequences
by James Wright 22 May '13

22 May '13

Hey, In the BaseX implementation this query: ($context//*[name() = $type and data((*|@*)[name() = $entityMetadata/property[@key = 'true']/@name]) = $entityId])[1] Will the query execute completely and then a 'subset' of 1 will be extracted, or will it only execute until it find the '1st' item that matches the query? Maybe this is a general XQuery question but I figured it was implementation specific. - James

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Search based on count of particular word
by John Best 21 May '13

21 May '13

Hi there Below is a sample XML file. ******************************* <Docs> <Doc> <Name>Doc 1</Name> <Info>Hurray</Info> </Doc> <Doc> <Name>Doc 2</Name> <Info>Brinjal is king of vegetables.</Info> </Doc> <Doc> <Name>Doc 3</Name> <Info>Alexandar was a great king. His desire was to conquer the world and rule the world as a king.</Info> </Doc> <Doc> <Name>Doc 4</Name> <Info>I love cherries.</Info> </Doc> <Doc> <Name>Doc 5</Name> <Info>Mango is king of fruits. Alphonso is king of mangoes. So Alphonso is king's king.</Info> </Doc> </Docs> ************************ I want to search the <Info> tag for the word "king" and return the <Name> as output. I know this is simple... :) But the *order of the <Name> should be in order of the word searched (here it will be king) ie the most numbers will come first. * *Doc 5 (3 times king) * *Doc 3 (2 times king) * *Doc 2 (1 time king) * * * -- Have a nice day JBest

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[FULL TEXT] Indexing text in several languages
by Vincent 21 May '13

21 May '13

Dear BaseX Team, I have some text in different languages stored in my XML files (tagged with xml:lang attributes) and I'd like to perform efficient full text queries on it (using stemming, stopwords...). I planned to use full text index. I can't figure out how I can set full text index for different languages in a given database. Is there a way to do it ? Thanks, Vincent

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Re: [basex-talk] BaseX generate-id()
by Christian Grün 20 May '13

20 May '13

I’m not quite sure on what you were asking, but I noticed that the explanation of PRE and ID values in our Wiki was somewhat deficient. Please don‘t hesitate to have yet another look at the revised articles [1,2], which are hopefully more self-explanatory. If not, you are always invited to read the dissertation in more detail ;) [1] http://docs.basex.org/wiki/Database_Module#db:open-pre [2] http://docs.basex.org/wiki/Node_Storage _______________________________ On Mon, May 20, 2013 at 10:46 PM, James Wright <james.jw(a)hotmail.com> wrote: > How did I not notice this!! I have read through those modules so many times > now!! I think this is exactly what I was looking for. I expected there to be > some sort of persistent id because I skimmed the initial dissertation on > BaseX from several years ago and it talks about a persistent ID. In regards > to the 'pre' this ID represents the id of a node which 'hasn't' been > inserted yet but it does not necessarily denote the ID the node will take > when actually inserted... So whats the point? Is this more for internal > uses? Maybe I don't fully understand... > > Thanks for the quick reply! > > - James > >> From: christian.gruen(a)gmail.com >> Date: Mon, 20 May 2013 22:30:08 +0200 >> Subject: Re: [basex-talk] BaseX generate-id() >> To: james.jw(a)hotmail.com >> CC: basex-talk(a)mailman.uni-konstanz.de > >> >> Hi James, >> >> a node id generated via generate-id() is unique and the same during >> the runtime of a query. If you want to ensure that you are requesting >> the same nodes of a database, I recommend you to check out the >> node-id() and node-pre() functions of our database module [1]. >> >> Hope this helps, >> Christian >> >> [1] http://docs.basex.org/wiki/Database_Module >> ___________________________ >> >> On Mon, May 20, 2013 at 10:09 PM, James Wright <james.jw(a)hotmail.com> >> wrote: >> > In the W3C specs it says this method should generate the same ID for a >> > node >> > regardless of when its called. Is this how it is implemented in BaseX or >> > does it simply generate a random number? My testing seems to implicate >> > the >> > ladder. If it does generate the same ID for each node each time its run, >> > does it do ensure uniqueness at the db or resource level? >> > >> > Thx for your time. >> > - James >> > >> > _______________________________________________ >> > BaseX-Talk mailing list >> > BaseX-Talk(a)mailman.uni-konstanz.de >> > https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk >> >

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