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CDATA in xquery
by Erol Akarsu 02 Dec '13

02 Dec '13

I would like to generate CDATA of one xmk construct like this. This does not calculate $1,$f2 and $f3 and insert their serialized version into features tag Can we do this in xquery? let $allfs := <record> <name>{$name}</name> <features> <![CDATA[ <h3>Features:</h3> <br/> <ul> <li>{$f1}</li> <li>{$f2}</li> <li>{$f3}</li> </ul> ]]> </features> </record> Erol Akarsu

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Re: [basex-talk] office paper
by niki 02 Dec '13

02 Dec '13

Dear Sir, It's a nice day! I’m NIKI. We are a company mainly in export paper products. We have been in this field for many years. Our paper products contains copy paper, newsprint paper, offset paper, NCR paper etc. Should any of the item be of interest to you, please let me know. We shall be glad to give you our the most favorable price upon receipt of your detailed requirements. May be now you have regular partner. If So, please leave my message in your email box, maybe someday it will be useful. Best Wishes! Enjoy your work! Regards, Niki Skype：xinyangpaper Xinyang Paper Add:28 xincheng industry zone,chengyang district, qingdao city,shandong province Email:xinyang02@xy-sy.net Web:www.xinyangpapers.com Mobile:86 15833992251

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Decoupling custom code with restxq
by Wiemer, Sebastian 02 Dec '13

02 Dec '13

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XQUERY command and PHP
by Tsvetanka Georgieva-Trifonova 02 Dec '13

02 Dec '13

Hi Basex, My question is about the command XQUERY [query]. Does it work with any XQuery queries or only with XPath? I tried the following: <?php include("BaseXClient.php"); // create session $session = new Session("localhost", 1984, "admin", "admin"); $session->execute("open myfirstdatabase"); echo $session->execute("xquery for $n in //country[name = 'Switzerland'] return $n") ; // close session $session->close(); ?> This example causes the error: [XPST0003] Incomplete 'window' expression.' But the following example: <?php include("BaseXClient.php"); // create session $session = new Session("localhost", 1984, "admin", "admin"); $session->execute("open myfirstdatabase"); echo $session->execute("xquery //country[name = 'Switzerland']") ; // close session $session->close(); ?> is executed without error. The difference between the two examples is that one uses XQuery and another - XPath expression. Please, tell me whether the command XQUERY can be used with any XQuery queries and how exactly? Thanks & regards, Tsvetanka

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Full text queries ok :)
by Ingarao Maud 02 Dec '13

02 Dec '13

Hello everybody Thanks to your help Christian, our full text queries yet work fine. I still don't understand exactly what the problem was and why we got 500 internal errors. Maybe a too heavy query and thus a memory problem ? Anyway now with this kind of writing, the queries are completed : declare function desanti:display-tags($collection, $dataType, $mode){ let $label := if($dataType = "subject") then "concepts" else "personnes" return <div class="{ $mode }"> <h6>{ $label }</h6> <span>{ for $term in $collection group by $term order by $term collation "?lang=fr" let $occurrences := count( ft:search('Desanti', $term)/..[local-name() = $dataType][ parent::*:controlaccess/ parent::*:c/ ancestor::*:dsc/ parent::*:archdesc/ parent::*:ead/ parent::document-node() ] ) return if($mode = "cloud") then ( <span><a style="font-size:{ $occurrences idiv 10 + 1 }em;padding:{ $occurrences idiv 10 }px;" title="{ $occurrences }" href="/restxq/desanti/{$label}/{$term}">{$term}</a></span> ) else ( <span class="{ $occurrences }"><a href="/restxq/desanti/{$label}/{$term}">{ $term }</a> ({ $occurrences }) </span> ) }</span> </div> }; Thanks a lot !!! Maud -- _« Ne travaillez jamais »_ MAUD INGARAO IHPC (UMR 5037) Institut d'histoire de la pensée classique, de l'Humanisme aux Lumières Ecole Normale Supérieure de Lyon - Site Descartes - Bureau R322 15 Parvis René Descartes - BP7000 - 69342 Lyon CEDEX 07 +33 4 37 37 65 79 - maud.ingarao(a)ens-lyon.fr _Je suis absente le vendredi | Out of office on Fridays_ http://pensee-classique.ens-lyon.fr [1] http://institutdesanti.ens-lyon.fr [2] http://ahn.ens-lyon.fr [3] http://www.mutec-shs.fr [4] http://www.projet-plume.org [5] http://www.cahier.paris-sorbonne.fr/ [6] Links: ------ [1] http://pensee-classique.ens-lyon.fr [2] http://institutdesanti.ens-lyon.fr [3] http://ahn.ens-lyon.fr [4] http://www.mutec-shs.fr [5] http://www.projet-plume.org [6] http://www.cahier.paris-sorbonne.fr/

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Perf issue
by jean-marc Mercier 01 Dec '13

01 Dec '13

Hello, I am encountering a performance issue with BaseX interpreter, illustrated by the snippet code above. This code first creates a sequence of 100000 integers, taking more than a minute with my environment. Then it creates a BaseX map of 100000 integers, taking 0.1 sec. This issue seems to be due to a poor performance of the operator () (see function local:id below). This could be an issue for the BaseX interpreter, or a problem with my environment, but might be also a XQUERY 3.0 "leak". Have you any idea ? cheers Jean-Marc declare function local:id($el) as function() as item()* {function(){ $el }}; declare function local:new() {local:id(())}; declare function local:new($map,$item) {local:id(($map(),$item))}; let $nb := 100000 return let $testid := fn:fold-left(for $i in 1 to $nb return $i,local:new(), function($map,$entry){local:new( $map,$entry )}) let $basexmap := fn:fold-left(for $i in 1 to $nb return map:entry($i,$i),map:entry(0,0), function($entry,$map){map:new( ($map,$entry) )}) return (fn:count(prof:time( $testid )),fn:count(prof:time( $basexmap )))

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default element namespace and restxq
by sechel＠math.tu-berlin.de 29 Nov '13

29 Nov '13

Hi, I'm experiencing problems using a default element namespace in a restxq module. Here is a working example taken from the default restxq module. All I addded is the namespace of the response element. module namespace page = 'http://basex.org/modules/web-page'; declare namespace test = 'http://test-namespace.org'; declare %rest:path("/ajax/hello/{$world}") %rest:GET function page:hello($world as xs:string) as element(test:response) { <test:response> <test:title>Hello { $world }!</test:title> <test:time>The current time is: { current-time() }</test:time> </test:response> }; If I now introduce a default element namespace just to simplify notation, I get a NullPointerException module namespace page = 'http://basex.org/modules/web-page'; declare default element namespace 'http://test-namespace.org'; declare %rest:path("/ajax/hello/{$world}") %rest:GET function page:hello($world as xs:string) as element(response) { <response> <title>Hello { $world }!</title> <time>The current time is: { current-time() }</time> </response> }; java.lang.NullPointerException at org.basex.query.expr.Arr.has(Arr.java:46) at org.basex.query.func.StaticFuncCall.has(StaticFuncCall.java:137) at org.basex.query.QueryContext.mainModule(QueryContext.java:203) at org.basex.http.restxq.RestXqResponse.create(RestXqResponse.java:66) at org.basex.http.restxq.RestXqModule.process(RestXqModule.java:108) at org.basex.http.restxq.RestXqFunction.process(RestXqFunction.java:100) at org.basex.http.restxq.RestXqServlet.run(RestXqServlet.java:31) at org.basex.http.BaseXServlet.service(BaseXServlet.java:58) at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) 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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preprocessor instructions for BaseX XQUERY interpreters ?
by jean-marc Mercier 29 Nov '13

29 Nov '13

Hello, I have some questions about BaseX interpreter. 1) Is there a way to send preprocessor instructions to BaseX interpreter ? I am looking to a way to tell the interpreter to skip code based on external instructions, mainly to distinguish the behavior between debug / release modes. This is achieved in C++ with the macro set of instructions #define, #if, #endif etc... I was wondering whether there exists such a mechanism in XQUERY. Note : processor instructions might not be relevant for XQuery, since interpreters are heavily optimized. 2) Could you confirm that BaseX interpreter will not try to interpret "dead" code ? To emulate processor instructions with XQUERY, I am presently using dynamic local variable declarations as (declare function debug(){true()/false()}), and encapsulating my code with a lot of "if (debug()) then (.1.) else (.2.)". Can you confirm that BaseX interpreter skip looking at (.1.) or (.2.) accordingly to the debug function return value ? Cheers Jean-Marc

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New user requiring help in population of database
by Ando Roy 28 Nov '13

28 Nov '13

Hi all, I'm a new user of BaseX and would like to get myself up to speed with development as quickly as possible.Hope to get some pointers from the experts here, as I'm still picking up the concepts required in the use of XML Databases. I am experimenting with porting over some content from an existing RDBMS project to BaseX and would like to know how to go about doing it. I have already designed a XML schema based on my RDBMS model and would like to know how I can quickly go about populating the database in BaseX. Just a few quick questions here: 1. How should I go about creating the tree structure and its nodes (i.e. elements with attributes)? I'm a little confused (perhaps because I'm trying to approach it from a RDBMS perspective). 2. Is there a quick way to populate the database from some existing data sets (i.e. CSV or text files)? Thanks! Regards, Roy

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BaseX Interpreter / Eclipse integration issue ?
by jean-marc Mercier 28 Nov '13

28 Nov '13

Hi, Within my environment, I am experiencing some frustrating behavior of the Xquery Basex engine. I've done my best to single out the problem in the following XQUERY code : declare function local:wtf($x as item() ) {function() { $x}}; declare function local:dummy($f,$x) { if(fn:empty($f())) then local:wtf($x) else local:wtf(())}; declare variable $insert := local:dummy(function(){ () }, function() { (), ()} ); fn:count($insert()) The issues are : 1) executing this code yields an "Improper use? Potential bug?" exception (see details further on). 2) If I change the execution query to be fn:count(local:dummy(function(){ () }, function() { (), ()} )()) ( I just copy and pasted the value of $insert into the fn:count(..) ) then the query is executed normally, returning "1". 3) If I change the function declaration local:wtf as follow declare function local:wtf($x) {function() { $x}}; (I just removed "as item()"), then the query is executed normally, returning "1". Can you reproduce it with another environment ? Cheers, Jean-Marc Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de Version: BaseX 7.8 beta 6aeaebf Java: Oracle Corporation, 1.7.0_05 OS: Windows 7, amd64 Stack Trace: java.lang.NullPointerException at org.basex.query.value.item.FuncItem.inlineExpr(FuncItem.java:308) at org.basex.query.func.DynFuncCall.optimize(DynFuncCall.java:58) at org.basex.query.func.DynFuncCall.compile(DynFuncCall.java:39) at org.basex.query.expr.Arr.compile(Arr.java:40) at org.basex.query.func.StandardFunc.compile(StandardFunc.java:60) at org.basex.query.MainModule.compile(MainModule.java:63) at org.basex.query.QueryCompiler.compile(QueryCompiler.java:70) at org.basex.query.QueryCompiler.compile(QueryCompiler.java:61) at org.basex.query.QueryContext.analyze(QueryContext.java:270) at org.basex.query.QueryContext.compile(QueryContext.java:253) at org.basex.query.QueryProcessor.compile(QueryProcessor.java:71) at org.basex.core.cmd.AQuery.query(AQuery.java:81) at org.basex.core.cmd.XQuery.run(XQuery.java:22) at org.basex.core.Command.run(Command.java:323) at org.basex.core.Command.execute(Command.java:92) at org.basex.server.LocalSession.execute(LocalSession.java:121) at org.basex.server.Session.execute(Session.java:37) at org.basex.core.Main.execute(Main.java:146) at org.basex.BaseX.<init>(BaseX.java:119) at org.basex.BaseX.main(BaseX.java:38)

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Reg : Group By Clause
by ChandraSekhar 28 Nov '13

28 Nov '13

Dear Team , I am following the below steps to execute my XQuery 1) I am Created collection with the MyFile.xml 2) I am running the query which is in attached file(query.txt) on the above collection 3) I am Grouping the C4 element for Grouping 4)I am running this query in java Java code : new XQuery(query).execute(context,fileoutstream); Query running properly when I am not using the group by clause Problem : If I use the group by ,exception is coming like out of main memory,can you please tell me Is their any alternate to reduce the memory when using group by Thanks & Regards Chandra Sekhar -- This message is for the intended recipient only. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of the information is strictly prohibited. __

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HTML serialization error
by Lars Johnsen 28 Nov '13

28 Nov '13

When converting files from xml to html, there appeared a serialization error saying something to the effect that x84 was an illegal html character. The files were written using file:write with parameter $params defined as: let $params := <output:serialization-parameters><output:method value="html"/></ output:serialization-parameters> When sending the html directly to the browser (not writing to file and using the above declaration), the browser (chrome) appeared to be ok, and displayed the full html. Processing the text through normalize-unicode() didn't help. The error persisted. Is there a way to fix the text before submitting it to file:write()? All the best Lars G Johnsen National Library of Norway

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how to develop our repository lib package?
by easy 27 Nov '13

27 Nov '13

hi,all, what's the extension package specifinition? can I install exist-db 's xar package into basex? -- 此致 easy 莫愁前路无知己，天下谁人不识君。

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Getting 404s through restxq
by Joe Templeman 26 Nov '13

26 Nov '13

Hi all, we are running basex through jetty and we're seeing basex get into a state where it returns nothing but 404, saying that no function for the request can be found even when they are completely valid paths and when we restart jetty, they work OK again. I can't seem to track down what state it ends up in to cause such a behavior, all of the files are there and nothing changes between restarts. Has anybody ever come across this before? Does anyone have any advice on how best to debug this issue? Thanks, Joe

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Line Number for Node
by Jeremy Moseley 26 Nov '13

26 Nov '13

Hi Guys, I am trying to find the line number of a node in the original XML source file. Is this information possibly stored in the database when the document is parsed? If that is not the case, is it possible to retrieve the original XML file after it has been inserted? Thanks, Jeremy

2 1

Database-level locking
by Charles Duffy 24 Nov '13

24 Nov '13

Howdy -- Something I'd like to see would be the ability to make assertions about which databases a query will need a write lock on, such that the queries will fail at runtime if such an assertion was made but more locks are needed than were declared. This could allow more fine-grained locking to be used in places where global locks presently apply, without loss of safety. ...or is there an existing alternative that I've missed?

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document update timestamp?
by Pascal Heus 24 Nov '13

24 Nov '13

Is there any way to retrieve the date/time a document was pushed into a BaseX database? We have an external tool that needs to sync a folder holding XML files with a BaseX database (and we don't want to reload the entire content each time). Not an issue for new or deleted files but would like to be able to determine if a file/document in the DB is outdated. Note that a db/folder 'sync' feature could be nice to have as built-in feature. Thanks! *P

2 1

search into basex talk archive ?
by jean-marc Mercier 22 Nov '13

22 Nov '13

Hi, is there a (convenient) way to search into basex talk archives ? At present time, I downloaded some of the monthly archive to look at, but it is a little bit tedious... Cheers

2 2

Bug with Full Text functions ?
by Maud Ingarao 20 Nov '13

20 Nov '13

Hi everybody ! We are very excited that our BaseX kit for Digital Humanities Corpus is almost done and we look forward to presenting it to you ! We only have a last bug using the Full Text functions. The very same function call works fine through the rest api but generates a 500 Servor Internal Error through our restxq files. Example (you won't be able to access this private server) : http://ahn-basex.cbp.ens-lyon.fr:8984/rest/Desanti?query=count(collection('Desanti')/*[local-name() = 'ead']/*[local-name() = 'archdesc']/*[local-name() = 'dsc'] //*[local-name() = 'c']/*[local-name() = 'controlaccess']/*[local-name() = 'persname'][text() contains text 'Aristote']) works fine and returns the number of occurrences whereas let $occurrences := count(collection("Desanti")/*[local-name() = 'ead']/*[local-name() = 'archdesc']/*[local-name() = 'dsc']//*[local-name() = 'c'] /*[local-name() = 'controlaccess']/*[local-name() = 'persname'][text() contains text 'Aristote']) generates one of the two ERROR 500 below. PS : ft:count does't work and return 0 occurrences Thanks a lot und bis bald ! Maud and Nathalie HTTP ERROR 500 Problem accessing /desanti/catalogue. Reason: Unexpected error: Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de Version: BaseX 7.7 Java: Sun Microsystems Inc., 1.6.0_27 OS: Linux, amd64 Stack Trace: java.lang.NullPointerException ------------------------------------------------------------------------ /Powered by Jetty:/// or HTTP ERROR 500 Problem accessing /brede/theme. Reason: Unexpected error: Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de Version: BaseX 7.7 Java: Sun Microsystems Inc., 1.6.0_27 OS: Linux, amd64 Stack Trace: java.lang.NullPointerException at org.basex.query.ft.FTContainsExpr.item(FTContainsExpr.java:44) at org.basex.query.ft.FTContainsExpr.item(FTContainsExpr.java:24) at org.basex.query.expr.ParseExpr.ebv(ParseExpr.java:92) at org.basex.query.expr.ParseExpr.test(ParseExpr.java:106) at org.basex.query.expr.Preds.preds(Preds.java:133) at org.basex.query.path.IterStep$1.next(IterStep.java:42) at org.basex.query.path.CachedPath.iter(CachedPath.java:103) at org.basex.query.path.CachedPath.iter(CachedPath.java:106) at org.basex.query.path.CachedPath.iter(CachedPath.java:72) at org.basex.query.expr.ParseExpr.ebv(ParseExpr.java:94) at org.basex.query.expr.ParseExpr.test(ParseExpr.java:106) at org.basex.query.expr.Preds.preds(Preds.java:133) at org.basex.query.path.IterStep$1.next(IterStep.java:42) at org.basex.query.path.IterStep$1.next(IterStep.java:31) at org.basex.query.path.IterPath$1.next(IterPath.java:70) at org.basex.query.path.IterPath$1.next(IterPath.java:41) at org.basex.query.gflwor.For$1.next(For.java:71) at org.basex.query.gflwor.Let$1.next(Let.java:74) at org.basex.query.gflwor.GFLWOR$2.next(GFLWOR.java:72) at org.basex.query.expr.Constr.add(Constr.java:66) at org.basex.query.expr.CElem.item(CElem.java:91) at org.basex.query.expr.CElem.item(CElem.java:23) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:68) at org.basex.query.QueryContext.value(QueryContext.java:339) at org.basex.query.gflwor.Let$1.next(Let.java:75) at org.basex.query.gflwor.GFLWOR$2.next(GFLWOR.java:72) at org.basex.query.iter.Iter.value(Iter.java:64) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:71) at org.basex.query.QueryContext.value(QueryContext.java:339) at org.basex.query.func.StaticFunc.invValue(StaticFunc.java:199) at org.basex.query.func.BaseFuncCall.value(BaseFuncCall.java:62) at org.basex.query.func.StaticFuncCall.iter(StaticFuncCall.java:84) at org.basex.query.gflwor.GFLWOR$2.next(GFLWOR.java:76) at org.basex.query.expr.Constr.add(Constr.java:66) at org.basex.query.expr.CElem.item(CElem.java:91) at org.basex.query.expr.CElem.item(CElem.java:23) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:68) at org.basex.query.QueryContext.value(QueryContext.java:339) at org.basex.query.gflwor.Let$1.next(Let.java:75) at org.basex.query.gflwor.GFLWOR$2.next(GFLWOR.java:72) at org.basex.query.expr.Constr.add(Constr.java:66) at org.basex.query.expr.CElem.item(CElem.java:91) at org.basex.query.expr.CElem.item(CElem.java:23) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:68) at org.basex.query.QueryContext.value(QueryContext.java:339) at org.basex.query.expr.Switch.value(Switch.java:91) at org.basex.query.QueryContext.value(QueryContext.java:339) at org.basex.query.gflwor.Let$1.next(Let.java:75) at org.basex.query.gflwor.GFLWOR$2.next(GFLWOR.java:72) at org.basex.query.expr.Constr.add(Constr.java:66) at org.basex.query.expr.CElem.item(CElem.java:91) at org.basex.query.expr.CElem.item(CElem.java:23) at org.basex.query.expr.ParseExpr.iter(ParseExpr.java:46) at org.basex.query.gflwor.GFLWOR$2.next(GFLWOR.java:76) at org.basex.query.iter.Iter.value(Iter.java:64) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:71) at org.basex.query.QueryContext.value(QueryContext.java:339) at org.basex.query.func.StaticFunc.invValue(StaticFunc.java:199) at org.basex.query.func.BaseFuncCall.value(BaseFuncCall.java:62) at org.basex.query.QueryContext.value(QueryContext.java:339) at org.basex.query.value.item.FuncItem.invValue(FuncItem.java:180) at org.basex.query.func.DynFuncCall.value(DynFuncCall.java:58) at org.basex.query.func.DynFuncCall.iter(DynFuncCall.java:63) at org.basex.query.QueryContext.iter(QueryContext.java:328) at org.basex.query.expr.Constr.add(Constr.java:65) at org.basex.query.expr.CElem.item(CElem.java:91) at org.basex.query.expr.CElem.item(CElem.java:23) at org.basex.query.expr.ParseExpr.iter(ParseExpr.java:46) at org.basex.query.QueryContext.iter(QueryContext.java:328) at org.basex.query.expr.Constr.add(Constr.java:65) at org.basex.query.expr.CElem.item(CElem.java:91) at org.basex.query.expr.CElem.item(CElem.java:23) at org.basex.query.expr.ParseExpr.iter(ParseExpr.java:46) at org.basex.query.QueryContext.iter(QueryContext.java:328) at org.basex.query.expr.Constr.add(Constr.java:65) at org.basex.query.expr.CElem.item(CElem.java:91) at org.basex.query.expr.CElem.item(CElem.java:23) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:68) at org.basex.query.QueryContext.value(QueryContext.java:339) at org.basex.query.func.StaticFunc.invValue(StaticFunc.java:199) at org.basex.query.func.BaseFuncCall.value(BaseFuncCall.java:62) at org.basex.query.QueryContext.value(QueryContext.java:339) at org.basex.query.value.item.FuncItem.invValue(FuncItem.java:180) at org.basex.query.func.DynFuncCall.value(DynFuncCall.java:58) at org.basex.query.func.DynFuncCall.iter(DynFuncCall.java:63) at org.basex.query.QueryContext.iter(QueryContext.java:328) at org.basex.query.expr.List$1.next(List.java:120) at org.basex.query.expr.Constr.add(Constr.java:66) at org.basex.query.expr.CElem.item(CElem.java:91) at org.basex.query.expr.CElem.item(CElem.java:23) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:68) at org.basex.query.QueryContext.value(QueryContext.java:339) at org.basex.query.func.StaticFunc.invValue(StaticFunc.java:199) at org.basex.query.func.BaseFuncCall.value(BaseFuncCall.java:62) at org.basex.query.QueryContext.value(QueryContext.java:339) at org.basex.query.value.item.FuncItem.invValue(FuncItem.java:180) at org.basex.query.func.DynFuncCall.value(DynFuncCall.java:58) at org.basex.query.func.DynFuncCall.iter(DynFuncCall.java:63) at org.basex.query.QueryContext.iter(QueryContext.java:328) at org.basex.query.expr.List$1.next(List.java:120) at org.basex.query.expr.Constr.add(Constr.java:66) at org.basex.query.expr.CElem.item(CElem.java:91) at org.basex.query.expr.CElem.item(CElem.java:23) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:68) at org.basex.query.QueryContext.value(QueryContext.java:339) at org.basex.query.func.StaticFunc.invValue(StaticFunc.java:199) at org.basex.query.func.TailFuncCall.value(TailFuncCall.java:47) at org.basex.query.QueryContext.value(QueryContext.java:339) at org.basex.query.func.StaticFunc.invValue(StaticFunc.java:199) at org.basex.query.func.BaseFuncCall.value(BaseFuncCall.java:62) at org.basex.query.func.StaticFuncCall.iter(StaticFuncCall.java:84) at org.basex.query.MainModule.iter(MainModule.java:93) at org.basex.query.QueryContext.iter(QueryContext.java:282) at org.basex.http.restxq.RestXqResponse.create(RestXqResponse.java:73) at org.basex.http.restxq.RestXqModule.process(RestXqModule.java:108) at org.basex.http.restxq.RestXqFunction.process(RestXqFunction.java:100) at org.basex.http.restxq.RestXqServlet.run(RestXqServlet.java:31) at org.basex.http.BaseXServlet.service(BaseXServlet.java:58) at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:457) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1075) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:384) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1009) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) at org.eclipse.jetty.server.Server.handle(Server.java:370) at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489) at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:949) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1011) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:644) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235) at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:668) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543) at java.lang.Thread.run(Thread.java:679) -- /« Ne travaillez jamais »/ *Maud Ingarao* IHPC (UMR 5037) Institut d'histoire de la pensée classique, de l'Humanisme aux Lumières Ecole Normale Supérieure de Lyon - Site Descartes - Bureau R322 15 Parvis René Descartes - BP7000 - 69342 Lyon CEDEX 07 +33 4 37 37 65 79 - maud.ingarao(a)ens-lyon.fr /Je suis absente le vendredi | Out of office on Fridays/ http://pensee-classique.ens-lyon.fr http://institutdesanti.ens-lyon.fr http://ahn.ens-lyon.fr http://www.mutec-shs.fr http://www.projet-plume.org http://www.cahier.paris-sorbonne.fr/

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Bugreport V7.7 java.lang.ArrayIndexOutOfBoundsException
by Bodo Hüsemann 20 Nov '13

20 Nov '13

Hi BaseX team, Using BaseX 7.7 in an embedded Java Application Server Ive encountered the following reproducible error. The error occurs if the same query is issued the second time after the first has been successfully executed (after restarting the server the query will run again the first time ok and the second time with this error). This indicates a potential concurrency or non-closed cursor bug to me, but I dont see the problem and surely we shouldnt get an java.lang.ArrayIndexOutOfBoundsException even if with my bad code quality. Could you please have a look and advise to improve my code, or fix a potential bug? Many thanks in advance, Bodo Error stack trace: WARNING 2013.11.19 23:00:36 Error while loading document: sqlQuery_ora_F30929C659D0CED7525C61A7D149E7D4C0301A18 org.basex.core.BaseXException: Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de Version: BaseX 7.7 Java: Oracle Corporation, 1.7.0_15 OS: Windows 7, amd64 Stack Trace: java.lang.ArrayIndexOutOfBoundsException: 2 at org.basex.io.random.TableDiskAccess.flush(TableDiskAccess.java:124) at org.basex.data.DiskData.finishUpdate(DiskData.java:212) at org.basex.core.cmd.Add.run(Add.java:109) at org.basex.core.Command.run(Command.java:345) at org.basex.core.Command.exec(Command.java:321) at org.basex.core.Command.execute(Command.java:78) at org.basex.core.Command.execute(Command.java:90) at org.basex.server.ClientListener.execute(ClientListener.java:386) at org.basex.server.ClientListener.add(ClientListener.java:357) at org.basex.server.ClientListener.run(ClientListener.java:100) at org.basex.server.ClientSession.receive(ClientSession.java:259) at org.basex.server.ClientSession.send(ClientSession.java:246) at org.basex.server.ClientSession.send(ClientSession.java:284) at org.basex.server.ClientSession.add(ClientSession.java:134) at de.infabswissarmy.control.XMLDBManagerBaseX.putDoc(XMLDBManagerBaseX.java:25 2) at de.infabswissarmy.control.XMLDBManagerBaseX.putDoc(XMLDBManagerBaseX.java:56 ) at de.infabswissarmy.control.QueryTask.sqlQuery(QueryTask.java:258) at de.infabswissarmy.control.QueryTask.query(QueryTask.java:138) at de.infabswissarmy.control.QueryTask.run(QueryTask.java:283) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) org.basex.core.BaseXException: java.nio.channels.OverlappingFileLockException at org.basex.server.ClientQuery.cache(ClientQuery.java:81) at org.basex.server.Query.more(Query.java:74) at de.infabswissarmy.control.XMLDBManagerBaseX.query(XMLDBManagerBaseX.java:86) at de.infabswissarmy.control.XMLDBManagerBaseX.queryDoc(XMLDBManagerBaseX.java: 131) at de.infabswissarmy.control.QueryTask.query(QueryTask.java:192) at de.infabswissarmy.control.QueryTask.run(QueryTask.java:283) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Relevant source extract: private static void putDoc(String inContainerName, String inDocumentRef, byte[] inDocument){ ClientSession mySession = null; try { mySession = getClientSession(); // document already exists? if(existsDoc(inContainerName, inDocumentRef)){ // delete old document mySession.execute(new Open(inContainerName)); mySession.execute(new Delete(inDocumentRef)); } mySession.execute(new Open(inContainerName)); // add new document mySession.add(inDocumentRef, new ByteArrayInputStream(inDocument)); } catch (IOException e) { logger.warning("Error while loading document: " + inDocumentRef); e.printStackTrace(); }finally { if (mySession != null){ try { mySession.close(); } catch (IOException e) {} } } } public ArrayList<String> query(String inQuery, String[][] inArgs){ ClientSession mySession = null; ClientQuery myQuery = null; ArrayList<String> tmpString = new ArrayList<String>(); try { mySession = getClientSession(); myQuery = mySession.query(inQuery); // bind variable if (inArgs != null){ for (int i=0; i < inArgs.length; i++){ myQuery.bind("$" + inArgs[i][0], inArgs[i][1]); } } while (myQuery.more()){ tmpString.add(myQuery.next()); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } finally { if (myQuery != null){ try { myQuery.close(); } catch (BaseXException e) { // ignore } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } if (mySession != null){ try { mySession.close(); } catch (BaseXException e){ //ignore } catch (IOException e){ // TODO Auto-generated catch block e.printStackTrace(); } } } return tmpString; }

2 2

Re: [basex-talk] Is it right query using ft:search ?
by John Best 20 Nov '13

20 Nov '13

Hi Dirk, Thanks for your reply.. What will be the query for the following structure - I tried your yesterday's query it achieved the result as required. My structure was not exactly the same as mentioned yesterday. I thought, I would modify it as per my structure. But, I was not successful. Below is my complete structure. I want to search the MainDesc, which have 2 child nodes viz; shortDesc and longDesc. <Docs> <Doc> <DocTitle C="1"></DocTitle> <MainDesc> <shortDesc></shortDesc> <longDesc> some text <B>to make the word(s) bold Optional</B> some text <I>to make the word(s) italic Optional</I> some text <U>to have an underline Optional</U> some text some text </longDesc> </MainDesc> <FullDesc></FullDesc> </Doc> </Docs> ------------------------------------------------------------------------- Hello John, I guess your second query isn't really doing what you intend it to do. Actually, it will yield the same output as your first query (the child step /MainDesc will only have the effect that fragments without MainDesc as a child will be filtered out). I guess the following query should work (at least if I understood correctly what you are trying to achieve): for $x in ft:search("docMaster", ("emf","waves"), map{'mode':='all words'})/parent::*:MainDesc/ parent::*:Doc return $x/DocTitle/text() Thereby, you using the parent step you assure that the found text node was actually inside a MainDesc node. Please also note that there is a difference between an ancestor step and a parent step and as you seem to know your structure it might be easier and faster to simply use parent. Cheers, Dirk -- Have a nice day JBest

2 1

Schema Validation Error
by Paul Fancher 19 Nov '13

19 Nov '13

I am trying to get a working schema validation, and I'm hitting a hangup: Context: db:open("Test","NewXMLSchema.xsd") <schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:tns=" http://www.example.org/NewXMLSchema" targetNamespace=" http://www.example.org/NewXMLSchema" elementFormDefault="qualified"> <element name="test" type="tns:test"/> <complexType name="test"> <sequence> <element name="item" type="string" maxOccurs="unbounded" minOccurs="1"/> </sequence> </complexType> </schema> db:open("Test","NewFile1.xml") <tns:test xmlns:tns="http://www.example.org/NewXMLSchema" xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation=" http://www.example.org/NewXMLSchema NewXMLSchema.xsd "> <tns:item>Poke</tns:item> <tns:item>Poke</tns:item> <tns:item>Poke</tns:item> </tns:test> Test Code: declare namespace tns = "http://www.example.org/NewXMLSchema"; validate:xsd-info("/tns:test", db:open("Test","NewXMLSchema.xsd")) The error message I get back is "Fatal: Content is not allowed in prolog." Any ideas what's going on? Paul shoutout to the the people behind eclipse and the Eclipse XML Editors and Tools for some really awesome development software!

2 4

Blocking threads on updating calls
by Joe Templeman 19 Nov '13

19 Nov '13

Hi, I've e-mailed before about this issue, but that was a while ago so I wanted to start a new thread. I'm currently experiencing a situation where all calls (updating or otherwise) are being blocked by any updating call within the same database, even when GLOBALLOCK is set to false. The setup is that we have a restxq endpoint which is checks if the requested content is loaded and if it isn't, we use a java library to fetch the content and then add it to the database. We return a restxq:forward, to the requested endpoint which thens processes the request, assuming the content exists. For some reason however, even with GLOBALLOCK set to false,

3 9

GUI Editor, Code Completions
by Christian Grün 19 Nov '13

19 Nov '13

Dear followers, we are interested to get your opinion on the code completions that we’ve just added to the text editor of our BaseX GUI [1]. You are invited to propose templates that you are missing here! Many of you would probably love to have context-based code completions (such as all functions in the current context, etc.). All I can say is that this is indeed planned for a future version of BaseX. Beside that, we’ve just added an implementation of the upcoming EXPath Binary Module [2]. As usual, a new stable snapshot is available, which contains the new features [3]. Thanks all, Christian [1] http://docs.basex.org/wiki/Shortcuts#Code_Completions [2] http://docs.basex.org/wiki/Binary_Module [3] http://files.basex.org/releases/latest/

2 1

Is it right query using ft:search ?
by John Best 19 Nov '13

19 Nov '13

Hi Team, Below is my XML Structure - <Docs> <Doc> <DocTitle C="1"></DocTitle> <MainDesc></MainDesc> <FullDesc></FullDesc> </Doc> <Doc> <DocTitle C="2"></DocTitle> <MainDesc></MainDesc> <FullDesc></FullDesc> </Doc> ............ ............ </Docs> I have to search the Full Text DB of above documents with 3 different options - 1. Complete Document 2. Only in MainDesc (Main Description) 3. Only in FullDesc (Full Description) Below is the query, using ft:search, for the first options, mentioned above for $x in ft:search("docMaster", ("emf","waves"), map{'mode':='all words'})/ancestor::*:Doc return $x/DocTitle/text() Now, this is for the 2nd options, i.e; for MainDesc - for $x in ft:search("docMaster", ("emf","waves"), map{'mode':='all words'})/ancestor::*:Doc/MainDesc return $x/DocTitle/text() Is it right ? I am little bit confused.. -- Have a nice day JBest

2 1

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