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

error importing one million documents using console
by Patrick Schäfer 07 Jul '10

07 Jul '10

Hi, I am trying to import one million documents within a directory to basex using the console as described on the faq-page. The command I am using is: java -cp BaseX61.jar org.basex.BaseXClient -vc "create DB /home/tuscreen/cml tuscreen " Immediately after execution the server throws an exception: Exception in thread "Thread-6" java.lang.NullPointerException at org.basex.build.DiskBuilder.close(DiskBuilder.java:102) at org.basex.build.DiskBuilder.abort(DiskBuilder.java:88) at org.basex.core.Progress.abort(Progress.java:98) at org.basex.core.Proc.run(Proc.java:146) at org.basex.core.Proc.exec(Proc.java:109) at org.basex.server.ServerProcess.run(ServerProcess.java:128) When importing a small fraction of the data, everything works fine. Is there any way to import all documents? Thank you Patrick

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Feature Requests
by Swaminathan S 06 Jul '10

06 Jul '10

Hi Christian, Please find below my feature requests: 1) Support constraints (xsd validation and user defined constraints (like support for database triggers)) 2) Transaction support - a rollback feature 3) CData declarations to be retained Thanks Swaminathan Sahiram

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BaseX embedded
by Charles F. Munat 06 Jul '10

06 Jul '10

I'm working on a Maven web project and I'd like to use BaseX in embedded mode to store XML and XHTML documents. I've experimented with other databases in embedded mode, and generally I include a jar (hopefully via Maven, though not always), then I can use the API to create a session, create databases, collections, and documents, run queries, etc. I found the well-hidden Maven configuration to add Maven to the pom.xml file, but I am having a hard time finding any documentation or examples that show me how to use the API. The examples I have found use sockets to connect to a running instance of the database server. This is not what I had in mind. Is it the only way to use BaseX, or am I missing a more direct way? Thanks for clarification... Chas.

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Reminder about your invitation from sayali Kulkarni
by sayali Kulkarni (LinkedIn Invitations) 06 Jul '10

06 Jul '10

LinkedIn ------------ This is a reminder that on June 21, sayali Kulkarni sent you an invitation to become part of his or her professional network at LinkedIn. Follow this link to accept sayali Kulkarni's invitation. https://www.linkedin.com/e/87foxj-gbacdcas-1u/doi/1401339739/ZCnLLJ4a/gir_8… Signing up is free and takes less than a minute. On June 21, sayali Kulkarni wrote: > To: [basex-talk(a)mailman.uni-konstanz.de] > From: sayali Kulkarni [sayalikulkarni7(a)gmail.com] > Subject: sayali Kulkarni wants to stay in touch on LinkedIn > > I'd like to add you to my professional network on LinkedIn. > > - sayali Kulkarni The only way to get access to sayali Kulkarni's professional network on LinkedIn is through the following link: https://www.linkedin.com/e/87foxj-gbacdcas-1u/doi/1401339739/ZCnLLJ4a/gir_8… You can remove yourself from sayali Kulkarni's network at any time. -------------- ------ (c) 2010, LinkedIn Corporation

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Feature Requests?
by Christian Grün 05 Jul '10

05 Jul '10

Hi everyone, thanks for your continuous and diligent feedback on BaseX and its development. As we are currently rescheduling priorities for new features, we invite you to give us a summary, or list, of the features you'd want to have integrated most desperately in BaseX. There is always enough to do anyway. Don't hesitate to get visionary, or greedy, though; the more serious input we get, the better we'll be able to serve everyone's needs in future. All the best, Christian ___________________________ Christian Grün University of Konstanz Department of Computer & Information Science D-78457 Konstanz, Germany Tel: +49-7531-88-4449, Fax: +49-7531-88-3577 http://www.inf.uni-konstanz.de/~gruen

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Passing java objects as XQuery parameters using XQJ
by Stefano Santoro 03 Jul '10

03 Jul '10

Hi, I am having trouble binding a java object to an XQuery external variable. Here is my simple java class: public class Provami { private int items; private String name; public Provami() { } public Provami(String name, int items) { this.items = items; this.name = name; } public String getName() { return this.name; } public void setName(String name) { this.name = name; } public int getItems() { return this.items; } public void setItems( int items) { this.items = items; } } and here is my XQuery sample declare namespace provami = "java:Provami"; declare variable $bar as xs:anyAtomicType external; let $foo := provami:new() return element a { element i {provami:setName($foo, 'nome'), provami:getName($foo)}, element i {provami:getName($bar)} } I have tried two approaches with XQJ: 1) to create an atomic type groovy:000> otype = conn.createAtomicType(XQItemType.XQBASETYPE_ANYATOMICTYPE, new QName("java:Provami"),null) groovy:000> ixpr.bindObject(new QName("bar"), new Provami("passato", 4), otype) ERROR org.basex.api.xqj.BXQException: No mapping known for 'Provami'. at org.basex.api.xqj.BXQAbstract.create (BXQAbstract.java:128) at org.basex.api.xqj.BXQDynamicContext.bindObject (BXQDynamicContext.java:147) at groovysh_evaluate.run (groovysh_evaluate:13) ... 2) I have also tried to create an item groovy:000> itm = conn.createItemFromObject(new Provami('roba',4), null) ERROR org.basex.api.xqj.BXQException: No mapping known for 'Provami'. at org.basex.api.xqj.BXQAbstract.create (BXQAbstract.java:128) at org.basex.api.xqj.BXQDataFactory.createItemFromObject (BXQDataFactory.java:231) at org.basex.api.xqj.BXQDataFactory.createItemFromObject (BXQDataFactory.java:39) at groovysh_evaluate.run (groovysh_evaluate:13) ... Could you please advice on how I may successfully bind the parameter. Thanks Stefano

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Re: [basex-talk] Newbie questions
by Andreas Weiler 02 Jul '10

02 Jul '10

Dear Nigel, > 1. Where is the main body of BaseX documentation? Our homepage (docs & publications), the mailing list, and the source code all serve as documentation; due to lack ofresources, we can't offer you more. > 2. I can’t see a service on my machine called “BaseX”. What’s doing > the server-side work? I’m using Windows 7. You have to start the BaseXServer in a console and then you can talk to it with your client. A service functionality which runs in the background of windows isnt available yet. > 3. The PHP example does this... $cmd = "xquery 1 to 10" which it sends > to the sever and gets a result. As far as I know that’s not a normal > valid xquery command yet it returns a result ok. I would expect $cmd = > "1 to 10" to work ok but not $cmd = "xquery 1 to 10". Do all queries > to BaseX using the PHP API have to start with the string “xquery “, > followed by the xquery itself? You have to send the "xquery" keyword to the server for identify the correct command you want to execute. There are a lot of commands additional to "xquery" (see http://www.inf.uni-konstanz.de/dbis/basex/commands). If you use the QueryIteratorExample you can just send the query itself, like 1 to 10, cause here you can only execute queries and no other commands. > 4. Where’s the documentation for the PHP API so I can find the answer > to the above question myself? There is a readme file (https://svn.uni-konstanz.de/dbis/basex/trunk/api/etc/) and the code files it self are documented. > 5. Is there a web-based forum for BaseX? There is just this mailing-list, but your questions will be answered really fast. I hope this helps, dont hesitate to ask for more. Kind regards, Andreas Nigel Alderton schrieb: > > Hi, I’m a BaseX newbie struggling with the basic “Hello world” type > stuff and struggling to find documentation to answer my questions... > > 1. Where is the main body of BaseX documentation? > > 2. I can’t see a service on my machine called “BaseX”. What’s doing > the server-side work? I’m using Windows 7. > > 3. The PHP example does this... $cmd = "xquery 1 to 10" which it sends > to the sever and gets a result. As far as I know that’s not a normal > valid xquery command yet it returns a result ok. I would expect $cmd = > "1 to 10" to work ok but not $cmd = "xquery 1 to 10". Do all queries > to BaseX using the PHP API have to start with the string “xquery “, > followed by the xquery itself? > > 4. Where’s the documentation for the PHP API so I can find the answer > to the above question myself? > > 5. Is there a web-based forum for BaseX? > > Thanks > > Nigel > > ------------------------------------------------------------------------ > > _______________________________________________ > BaseX-Talk mailing list > BaseX-Talk(a)mailman.uni-konstanz.de > https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk >

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Newbie questions
by Nigel Alderton 01 Jul '10

01 Jul '10

Hi, I'm a BaseX newbie struggling with the basic "Hello world" type stuff and struggling to find documentation to answer my questions... 1. Where is the main body of BaseX documentation? 2. I can't see a service on my machine called "BaseX". What's doing the server-side work? I'm using Windows 7. 3. The PHP example does this... $cmd = "xquery 1 to 10" which it sends to the sever and gets a result. As far as I know that's not a normal valid xquery command yet it returns a result ok. I would expect $cmd = "1 to 10" to work ok but not $cmd = "xquery 1 to 10". Do all queries to BaseX using the PHP API have to start with the string "xquery ", followed by the xquery itself? 4. Where's the documentation for the PHP API so I can find the answer to the above question myself? 5. Is there a web-based forum for BaseX? Thanks Nigel

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Re: [basex-talk] Abstürze basex/DeepFS bei vielen Dateien
by Christian Grün 01 Jul '10

01 Jul '10

Hallo Markus, im aktuellen DeepFS-Code kenne ich mich nicht bis ins Detail aus. Ich leite Deine Mail mal an Bastian L. und Alex weiter; vielleicht haben sie ein paar Ideen? Grüße, Christian ___________________________ 2010/6/17 Markus Roth <markus.roth(a)uni-konstanz.de>: > Hallo Christian, > > ich bin derzeit ein wenig am Rumspielen mit DeepFS und es tritt > kontinuierlich ein Fehler auf (immer zum gleichen Zeitpunkt): too many open > files. > Wenn ich das Limit für offene file handles hochsetze per ulimit -n (standard > in der bash sind 1024), dann kommt der Fehler später, aber trotzdem. > Siehe dazu weiter unten. > Warum sollte baseX aber so viele offene file handles haben? Mit dem > Lesen/Schreiben zusammen sollten es ja nicht so arg viele sein. Oder werden > u.U. (da die Traversierungs-Fkt. wohl rekursiv sein dürfte) je nach Tiefe > des aktuellen Pfades die Ascendants offen gelassen? Da der Fehler in der > Konsole mehrfach ausgegeben wird bis zum Abbruch: gibt es mehrere parallele > "crawler"/Indexer? > Inwiefern die Volltext-Indexierung bzw. inkludieren der Textdaten Einfluß > hat habe ich noch nicht betrachtet (also die folgenden Daten/Fehler sind mit > den Standardvoreinstellungen von DeepFS OHNE Volltext-Indexierung und > Inklusion von Text entstanden). > > > Gruß, > Markus > > > Linux (CentOS 5.4 final) || basex 6.1 & 6.1.5 -> too many open files > ca. 115k Dateien > XML-Nodes: ulimit: > 1,74Mio 1024 > 1,75Mio 2048 > 1,77Mio 4096 > 1,91Mio 16384 > 3,38Mio 200000 > > Windows XP SP3 hatte mit ca. 73k Dateien keine Probleme (konnte auch nicht > rausfinden wie hoch da das OFH ist) > > > Auszug aus der Fehlermeldung: > > java.io.FileNotFoundException: /root/BaseXData/DeepFS/tbli.basex (Too many > open files) > at java.io.FileOutputStream.open(Native Method) > at java.io.FileOutputStream.<init>(FileOutputStream.java:209) > at java.io.FileOutputStream.<init>(FileOutputStream.java:160) > at org.basex.io.DataOutput.<init>(DataOutput.java:49) > at org.basex.io.DataOutput.<init>(DataOutput.java:38) > at org.basex.io.TableDiskAccess.flush(TableDiskAccess.java:77) > at org.basex.data.DiskData.flush(DiskData.java:122) > at org.basex.data.DiskData.cls(DiskData.java:134) > at org.basex.data.Data.close(Data.java:128) > at org.basex.core.proc.Close.close(Close.java:46) > at org.basex.core.proc.Close.run(Close.java:29) > at org.basex.core.Proc.run(Proc.java:139) > at org.basex.core.Proc.run(Proc.java:163) > at org.basex.core.proc.Open.run(Open.java:30) > at org.basex.core.Proc.run(Proc.java:139) > at org.basex.core.Proc.run(Proc.java:163) > at org.basex.core.proc.CreateFS.run(CreateFS.java:54) > at org.basex.core.Proc.run(Proc.java:139) > at org.basex.core.Proc.exec(Proc.java:109) > at org.basex.core.Proc.exec(Proc.java:123) > at org.basex.gui.GUICommands$49.run(GUICommands.java:931) > /root/.basexwin could not be written. > >

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basex
by evan＠wingonwing.com 28 Jun '10

28 Jun '10

Hello, I would like to do some development with basex. I downloaded the project and am looking for a book or documentation to print out. What sort of references do you suggest. I am looking for more documentation than I found on the main page documentation from your website. Thanks, Evan

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Reminder about your invitation from sayali Kulkarni
by sayali Kulkarni (LinkedIn Invitations) 28 Jun '10

28 Jun '10

LinkedIn ------------ This is a reminder that on June 21, sayali Kulkarni sent you an invitation to become part of his or her professional network at LinkedIn. Follow this link to accept sayali Kulkarni's invitation. https://www.linkedin.com/e/87foxj-gaz2pgqu-5s/doi/1401339739/ZCnLLJ4a/gir_8… Signing up is free and takes less than a minute. On June 21, sayali Kulkarni wrote: > To: [basex-talk(a)mailman.uni-konstanz.de] > From: sayali Kulkarni [sayalikulkarni7(a)gmail.com] > Subject: sayali Kulkarni wants to stay in touch on LinkedIn > > I'd like to add you to my professional network on LinkedIn. > > - sayali Kulkarni The only way to get access to sayali Kulkarni's professional network on LinkedIn is through the following link: https://www.linkedin.com/e/87foxj-gaz2pgqu-5s/doi/1401339739/ZCnLLJ4a/gir_8… You can remove yourself from sayali Kulkarni's network at any time. -------------- ------ (c) 2010, LinkedIn Corporation

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Small project based on BaseX
by iorulezz＠gmail.com 27 Jun '10

27 Jun '10

Hello all, we are two master students at the university of Utrecht. We have a DB Architecture class that includes a small project (15%*7.5 ECTS= 1.125 ECTS). So, BaseX looks like a good chance to work on such a project. Our idea so far is based on some benchmarking experiments and small summary on how it works (maybe its relation with Monet) including any experiments we run (5-6 pages). Do you have anything better for us to do (maybe something you can get advantage of yourselves) or any guidelines/hints/whatever? Take into account that out time limit is approximately a week (full-time) and that we cannot do more work that what deserves 2.25ECTS for the 2 of us. I look forward to an answer (so we can decide and start working -the deadline is 9/7-. Best regards, Antonis

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Small project based on BaseX
by iorulezz＠gmail.com 27 Jun '10

27 Jun '10

Hello all, we are two master students at the university of Utrecht. We have a DB Architecture class that includes a small project (15%*7.5 ECTS= 1.125 ECTS). So, BaseX looks like a good chance to work on such a project. Our idea so far is based on some benchmarking experiments and small summary on how it works (maybe its relation with Monet) including any experiments we run (5-6 pages). Do you have anything better for us to do (maybe something you can get advantage of yourselves) or any guidelines/hints/whatever? Take into account that out time limit is approximately a week (full-time) and that we cannot do more work that what deserves 2.25ECTS for the 2 of us. I look forward to an answer (so we can decide and start working -the deadline is 9/7-. Best regards, Antonis

1 0

Small project based on BaseX
by iorulezz＠gmail.com 27 Jun '10

27 Jun '10

Hello all, we are two master students at the university of Utrecht. We have a DB Architecture class that includes a small project (15%*7.5 ECTS= 1.125 ECTS). So, BaseX looks like a good chance to work on such a project. Our idea so far is based on some benchmarking experiments and small summary on how it works (maybe its relation with Monet) including any experiments we run (5-6 pages). Do you have anything better for us to do (maybe something you can get advantage of yourselves) or any guidelines/hints/whatever? Take into account that out time limit is approximately a week (full-time) and that we cannot do more work that what deserves 2.25ECTS for the 2 of us. I look forward to an answer (so we can decide and start working -the deadline is 9/7-. Best regards, Antonis

1 0

Small project based on BaseX
by iorulezz＠gmail.com 27 Jun '10

27 Jun '10

Hello all, we are two master students at the university of Utrecht. We have a DB Architecture class that includes a small project (15%*7.5 ECTS= 1.125 ECTS). So, BaseX looks like a good chance to work on such a project. Our idea so far is based on some benchmarking experiments and small summary on how it works (maybe its relation with Monet) including any experiments we run (5-6 pages). Do you have anything better for us to do (maybe something you can get advantage of yourselves) or any guidelines/hints/whatever? Take into account that out time limit is approximately a week (full-time) and that we cannot do more work that what deserves 2.25ECTS for the 2 of us. I look forward to an answer (so we can decide and start working -the deadline is 9/7-. Best regards, Antonis

1 0

Small project based on BaseX
by iorulezz＠gmail.com 27 Jun '10

27 Jun '10

Hello all, we are two master students at the university of Utrecht. We have a DB Architecture class that includes a small project (15%*7.5 ECTS= 1.125 ECTS). So, BaseX looks like a good chance to work on such a project. Our idea so far is based on some benchmarking experiments and small summary on how it works (maybe its relation with Monet) including any experiments we run (5-6 pages). Do you have anything better for us to do (maybe something you can get advantage of yourselves) or any guidelines/hints/whatever? Take into account that out time limit is approximately a week (full-time) and that we cannot do more work that what deserves 2.25ECTS for the 2 of us. I look forward to an answer (so we can decide and start working -the deadline is 9/7-. Best regards, Antonis

1 0

ADMIN permission needed for basex:read(...)
by Sandra Maria Silcot 27 Jun '10

27 Jun '10

Fellow basex users, Test case: (as 'admin' user:) run file1.xq, containing: let $test := basex:read('/tmp/222.readme') return <test>{$test}</test> Returns, as expected: <test>readme from basex </test> But when run as any other user WITHOUT admin privilige (from the log): RUN /tmp/222 Error: ADMIN permission needed. 7.75 ms Behaviour is the same if the file is copied to be inside the basex home directory e.g. basex:read('222.readme'). I would like to be able to read files in basex queries as a non-admin user. But perhaps the admin restriction on this behaviour is by design? Cheers, Sandra

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possible bug
by szabolcs kurdi 25 Jun '10

25 Jun '10

Hi! I'm not 100% sure if it is a bug in BaseX or it's just me, but maybe it's better to post it. The error below happens after importing lots of xml files (~100mb) and then calling Optimize - on Arch linux, inside Virtualbox. The same process finishes without problems on Windows XP. 0 [SwingWorker-pool-3-thread-1] ERROR com.rosamez.jdvdkat.DbManager - Could not optimize the db. Possible bug? Feedback is welcome: info(a)basex.org BaseX 6.1.7: java.lang.ArrayIndexOutOfBoundsException: 0 org.basex.util.Num.size(Num.java:84) org.basex.index.ValueBuilder.writeWithNum(ValueBuilder.java:176) org.basex.index.ValueBuilder.merge(ValueBuilder.java:125) org.basex.index.ValueBuilder.build(ValueBuilder.java:75) org.basex.index.ValueBuilder.build(ValueBuilder.java:1) org.basex.core.proc.ACreate.index(ACreate.java:116) org.basex.core.proc.ACreate.index(ACreate.java:91) org.basex.core.proc.Optimize.stats(Optimize.java:90) org.basex.core.proc.Optimize.run(Optimize.java:35) org.basex.core.Proc.run(Proc.java:140) org.basex.core.Proc.exec(Proc.java:110) org.basex.core.Proc.execute(Proc.java:67) com.rosamez.jdvdkat.DbManager.optimize(DbManager.java:240) com.rosamez.jdvdkat.AddAllFilesWorker.doInBackground(AddAllFilesWorker.java:34) com.rosamez.jdvdkat.AddAllFilesWorker.doInBackground(AddAllFilesWorker.java:14) javax.swing.SwingWorker$1.call(SwingWorker.java:277) java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) java.util.concurrent.FutureTask.run(FutureTask.java:138) javax.swing.SwingWorker.run(SwingWorker.java:316) java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) java.lang.Thread.run(Thread.java:619) Thanks! Szabolcs

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Another Bug
by Dave Glick 23 Jun '10

23 Jun '10

I think I've found another bug (I promise I don't spend my whole day sitting around thinking of ways to break Basex). The test XML is at the bottom of this message. I'm not sure how to classify this bug, but consider the results of the following queries with the initial context set to <bbb>. Query: count(./preceding-sibling::*)+1 Result: 2 (as expected) Query: /test/a/ab/*[2] Result: <abb> (as expected) Query: /test/a/ab/*[count(./preceding-sibling::*)+1] Result: <aba><abb><abc> (was expecting just <abb> as before) This problem also appears to affect FLOWR expressions when using "for" but not "let"... Query: let $p := count(./preceding-sibling::*)+1 return /test/a/ab/*[$p] Result: <abb> (as expected) Query: for $p in 2 return /test/a/ab/*[$p] Result: <abb> (as expected) Query: for $p in count(./preceding-sibling::*)+1 return /test/a/ab/*[$p] Result: <aba><abb><abc> (was expecting just <abb> as before) Text XML: <test> <a> <aa/> <ab> <aba/> <abb/> <abc/> </ab> <ac/> </a> <ba/> <bb> <bba/> <bbb/> <bbc/> </bb> <bc/> </test>

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BaseX - 5 stars rated on GearDownload.com
by gear＠geardownload.com 23 Jun '10

23 Jun '10

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document-uri() and directory structure within collections
by C. M. Sperberg-McQueen 21 Jun '10

21 Jun '10

I've used BaseX to create a database of the XML Schema Test Suite, by specifying (in the GUI) the test suite's root directory and a filter of *.xml. (Well, to be completely explicit it's the root directory of a mirror in which each file is a symbolic link to the real test suite directories; this allows me to exclude ill-formed input and rename all XSD files as .xsd.xml.) But I find that when I retrieve an element $e and ask what document it was in, using document-uri($e), I do not get the expected result: I get the file name of the document, but I do not get the path to the document, only the path to the database root. For example: the BaseX database I'm working with was created by indexing directory /home/xmlschema/mirror-11. And for a query result element $a found in document /home/xmlschema/mirror-11/msData/additional/test73850.xml the expression document-uri($a/root()) returns /home/xmlschema/mirror-11/test73850.xsd.xml instead of the expected /home/xmlschema/mirror-11/msData/additional/test73850.xml (Side note: I do realize that the 'root()' in '$a/root()' is irrelevant; it's there to work around a bug in another XQuery processor, which shall remain nameless, which otherwise returns the empty sequence. Yes, it's true: I am seeing other XQuery engines as well as BaseX. I blush to admit it, because it makes me seem kind of promiscuous, but it's true.) Is this a bug? Did I do something wrong / set some parameter wrong when creating the database?) Is there a workaround? If it matters, I'm running BaseX 5.7 (cannot move to BaseX 6 at the moment because no Java 6 is available for my current hardware and software). -- **************************************************************** * C. M. Sperberg-McQueen, Black Mesa Technologies LLC * http://www.blackmesatech.com * http://cmsmcq.com/mib * http://balisage.net ****************************************************************

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Fwd: Re: document-uri() and directory structure within collections
by Imsieke, Gerrit, le-tex 21 Jun '10

21 Jun '10

should go to the list, too... -------- Original Message -------- Subject: Re: [basex-talk] document-uri() and directory structure within collections Date: Mon, 21 Jun 2010 22:48:22 +0200 From: Imsieke, Gerrit, le-tex <gerrit.imsieke(a)le-tex.de> Organization: le-tex publishing services GmbH To: C. M. Sperberg-McQueen <cmsmcq(a)blackmesatech.com> I asked the same question recently. In reaction they implemented base-uri() in 6.1.4, which works as required. Reading the spec, I find it hard to recognize any semantic differences between base-uri() and document-uri(). Gerrit On 21.06.2010 22:37, C. M. Sperberg-McQueen wrote: > I've used BaseX to create a database of the XML Schema Test Suite, > by specifying (in the GUI) the test suite's root directory and > a filter of *.xml. (Well, to be completely explicit it's the > root directory of a mirror in which each file is a symbolic > link to the real test suite directories; this allows me to > exclude ill-formed input and rename all XSD files as .xsd.xml.) > > But I find that when I retrieve an element $e and ask what > document it was in, using document-uri($e), I do not get > the expected result: I get the file name of the document, > but I do not get the path to the document, only the path > to the database root. > > For example: the BaseX database I'm working with was created > by indexing directory /home/xmlschema/mirror-11. And for > a query result element $a found in document > /home/xmlschema/mirror-11/msData/additional/test73850.xml > the expression document-uri($a/root()) returns > > /home/xmlschema/mirror-11/test73850.xsd.xml > > instead of the expected > > /home/xmlschema/mirror-11/msData/additional/test73850.xml > > (Side note: I do realize that the 'root()' in '$a/root()' is > irrelevant; it's there to work around a bug in another XQuery > processor, which shall remain nameless, which otherwise > returns the empty sequence. Yes, it's true: I am seeing > other XQuery engines as well as BaseX. I blush to admit it, > because it makes me seem kind of promiscuous, but it's > true.) > > Is this a bug? Did I do something wrong / set some parameter > wrong when creating the database?) Is there a workaround? > > If it matters, I'm running BaseX 5.7 (cannot move to BaseX 6 > at the moment because no Java 6 is available for my current > hardware and software). > -- Gerrit Imsieke Geschäftsführer / Managing Director le-tex publishing services GmbH Weissenfelser Str. 84, 04229 Leipzig, Germany Phone +49 341 355356 110, Fax +49 341 355356 510 gerrit.imsieke(a)le-tex.de, http://www.le-tex.de Registergericht / Commercial Register: Amtsgericht Leipzig Registernummer / Registration Number: HRB 24930 Geschäftsführer: Gerrit Imsieke, Svea Jelonek, Thomas Schmidt, Dr. Reinhard Vöckler

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sayali Kulkarni wants to stay in touch on LinkedIn
by sayali Kulkarni 21 Jun '10

21 Jun '10

LinkedIn ------------ I'd like to add you to my professional network on LinkedIn. - sayali Kulkarni sayali Kulkarni Looking for a job Pune Area, India Confirm that you know sayali Kulkarni https://www.linkedin.com/e/isd/1401339739/ZCnLLJ4a/ ------ (c) 2010, LinkedIn Corporation

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create / aler problem
by szabolcs kurdi 19 Jun '10

19 Jun '10

Hi! I seem to have some problems with creating or renaming databases with dots in their names. From java using create (I'm using CreateColl) they are created fine, but from the gui the last set is truncated (something.dot1.dot2 -> something.dot1). Rename (AlterDB from 6.1.7) can't rename a db with dots in its name, but no BaseXException is raised. Is it a bug, or just using dots in the names (which are directory names of course) is not advised? Thanks! Szabolcs

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XQuery FLOWR and Context
by Dave Glick 18 Jun '10

18 Jun '10

Hello again, You guys do such a great job of answering and responding to questions and concerns on this board, thanks again for that Christian. This next one might be a case of misunderstanding the standard on my part, but I'm seeing some odd things with XQuery when using a different initial context than the document root. Take the following XML: <test> <a> <aa/> <ab> <aba/> <abb/> <abc/> </ab> <ac/> </a> <ba/> <bb> <bba/> <bbb/> <bbc/> </bb> <bc/> </test> Here is the result of several different XQuery commands with different initial contexts (I've loaded the document into the BaseX GUI and am setting initial context by double-clicking the element in the grid view)... Query: . Context: document, Result: The entire document (as expected) Context: , Result: The element and all its content (as expected) Query: let $v := . return $v Context: document, Result: The entire document (as expected) Context , Result: The entire document (was expecting the element and all its content!) Query: .//ab Context: document, Result: Result: The <ab> element and its content (as expected) Context , Result: Nothing (as expected) Query: let $v := //ab return $v Context: document, Result: The <ab> element and its content (as expected) Context: , Result: The <ab> element and its content (as expected) Query: let $v := .//ab return $v Context: document, Result: The <ab> element and its content (as expected) Context: , Result: The <ab> element and its content (was expecting nothing!) As you can see, it seems to behave counter to expectations when the initial context is not the document and I use the initial context in the FLOWR expression. I attempted to test in other tools, but it appears that setting the initial context for an XQuery expression is actually a difficult feature to find. It's not a totally academic question, though - the system we're building uses initial contexts pretty extensively. I know that context is not maintained in XQuery, but can the initial context not be used in variable assignment or other components of a FLOWR expression? Thanks, Dave

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