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

Re: [basex-talk] DXQ
by Lukas Lewandowski 16 Nov '11

16 Nov '11

Hi Eric, Thanks for the links to the papers about distributed XQuery. Currently we are evaluating different approaches to distribute and query XML data. Basically, we are interested in using such an approach directly out of XQuery. The complexity for XQuery developers should be as small as possible, therefore we prefer solutions which do not extend XQuery specification with complex hierarchical structures. The "Distributed XQuery-based integration and visualization of multimodality brain mapping data" approach looks interesting and straightforward. We do more research in distribution approaches within the next weeks. regards Lukas On Monday, November 14, 2011 17:32 CET, Christian Grün <christian.gruen(a)uni-konstanz.de> wrote: > Hi Eric, > > nice to have your update! > > > I've been seeing quite a bit of chatter about cloud computing and > > distributed systems at work of recent. I think over the next few years, > > there is going to be a dire need for Distributed XQuery with our government > > customers. They have massive amounts of XML data and it keeps growing. > > That's good to know; it's also reflected in the feedback we're getting > on BaseX. We have some students working on getting BaseX in the cloud; > it will be interesting to get their opinion on DXQ.. @Lukas, Dirk, > Lukas: could you have a look at the two papers referenced by Eric, and > give some feedback? > > > http://www.cs.washington.edu/homes/kmorton/paper.pdf > > http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2636687/ > > Regarding the Android port: do you think your code base is already > complete enough to be published, or to be given away? > > Thanks, > Christian

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documentation question
by C. M. Sperberg-McQueen 16 Nov '11

16 Nov '11

For complicated reasons, one of the copies of BaseX I am working with at the moment is (as far as I can tell) version 6.7; is there a convenient way to find the 6.7 documentation on the BaseX site? Or should one just read the current documentation and be prepared to ignore all the material marked as new in 7.0? I'm particularly interested in reading up on the http interface, which I know has changed a lot in 7.0. At some point, I expect that that copy of BaseX will be upgraded to version 7, but for now if I want to work with that copy, I need to address it in 6.7 terms. Michael Sperberg-McQueen -- **************************************************************** * C. M. Sperberg-McQueen, Black Mesa Technologies LLC * http://www.blackmesatech.com * http://cmsmcq.com/mib * http://balisage.net ****************************************************************

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basexError
by blue 15 Nov '11

15 Nov '11

Hello. I am Isao. I'm japanese. Sorry, I can't speak english. When I use basex, SessionInfo output error log. I sent query to BaseXServer from ClientApplication(C#) repeatedly. -------error log------- Potential bug? Improper use? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de Version: BaseX 7.0.1 Java: Oracle Corporation, 1.7.0_01 OS: Linux, i386 Stack Trace: java.lang.RuntimeException: Not expected: Data Access out of bounds [pre:7081866, indexSize:16184, access:16184 > 16183]. org.basex.util.Util.notexpected(Util.java:67) org.basex.io.random.TableDiskAccess.cursor(TableDiskAccess.java:394) org.basex.io.random.TableDiskAccess.read1(TableDiskAccess.java:107) org.basex.data.Data.kind(Data.java:319) org.basex.query.item.DBNode.parent(DBNode.java:218) org.basex.query.item.DBNode$9.next(DBNode.java:410) org.basex.query.path.IterStep$1.next(IterStep.java:46) org.basex.query.iter.NodeIter.next(NodeIter.java:1) org.basex.query.path.IterPath$1.next(IterPath.java:67) org.basex.query.iter.NodeIter.next(NodeIter.java:1) org.basex.query.expr.For$1.next(For.java:91) org.basex.query.expr.FLWR$1.next(FLWR.java:62) org.basex.core.cmd.AQuery.query(AQuery.java:101) org.basex.core.cmd.XQuery.run(XQuery.java:22) org.basex.core.Command.run(Command.java:328) org.basex.core.Command.exec(Command.java:309) org.basex.core.Command.execute(Command.java:77) org.basex.server.ClientListener.run(ClientListener.java:200)

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'replace node' with new XML namespace prefix
by Laurent Chevalier 14 Nov '11

14 Nov '11

Hi. I've found a strange behaviour with the xquery "replace node" command. It seems that new namespace declarations within the XML tree added are not taken into account. Please, find hereafter a JUnit test code. Laurent package com.cyim.basex.test.ns; import org.junit.After; import org.junit.Assert; import org.junit.Before; import org.junit.Test; import org.basex.server.ClientSession; import org.basex.util.Util; /** * Test support of XML namespaces. * * @author Laurent Chevalier l.chevalier(a)cyim.com */ public final class NamespaceTest { /** Client session. */ private ClientSession session; /** Database name. */ protected static final String DB = Util.name(NamespaceTest.class); /** * Opens a client session, creates a database and loads documents. * @throws java.io.IOException IO exception */ @Before public void setUp() throws java.io.IOException { session = new ClientSession("localhost", 1984, "admin", "admin"); session.execute(String.format("create db %s <default/>", DB)); // Loads documents. addDoc("doc/1"); addDoc("doc/2"); addDoc("doc/3"); } /** * Adds a document. * @param uri * @throws java.io.IOException */ private void addDoc(String uri) throws java.io.IOException { // Document content. java.lang.StringBuilder qs = new java.lang.StringBuilder(); qs.append("<rdf:RDF xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\" xmlns:core=\"http://rdfs.cyim.com/CoreContent#\">\n"); qs.append(String.format(" <core:Container rdf:about=\"%s\"/>\n", uri)); qs.append("</rdf:RDF>"); // Adds it. java.io.InputStream in = new java.io.ByteArrayInputStream(qs.toString().getBytes("UTF-8")); try { session.add(uri, in); } finally { in.close(); } } /** * Drops the database and close remaining client sessions. * @throws java.io.IOException IO exception */ @After public void tearDown() throws java.io.IOException { session.execute("drop db " + DB); session.close(); } /** * Inserts a node. * * @param uri Document uri. * @throws java.io.IOException IO exception */ private void insertNode(String uri) throws java.io.IOException { java.lang.StringBuilder qs = new java.lang.StringBuilder("xquery\n"); qs.append("declare namespace rdf = \"http://www.w3.org/1999/02/22-rdf-syntax-ns#\";\n"); qs.append("declare namespace core = \"http://rdfs.cyim.com/CoreContent#\";\n"); qs.append("declare namespace wfdata = \"http://rdfs.cyim.com/WorkflowData#\";\n"); qs.append("insert node ") .append("<wfdata:Workflow xmlns:wfdata=\"http://rdfs.cyim.com/WorkflowData#\">\n") .append(" <wfdata:raiseOn>2011-11-01T11:34:08Z</wfdata:raiseOn>\n") .append("</wfdata:Workflow>\n") .append("into /rdf:RDF/*[@rdf:about=\"" + uri + "\"] "); session.execute(qs.toString()); } /** * Replaces a node and declares the 'wfdata' prefix on the 'core:Container' node. * * @param uri Document uri. * @throws java.io.IOException IO exception */ private void replaceNode(String uri) throws java.io.IOException { java.lang.StringBuilder qs = new java.lang.StringBuilder("xquery\n"); qs.append("declare namespace rdf = \"http://www.w3.org/1999/02/22-rdf-syntax-ns#\";\n"); qs.append("declare namespace core = \"http://rdfs.cyim.com/CoreContent#\";\n"); qs.append("declare namespace wfdata = \"http://rdfs.cyim.com/WorkflowData#\";\n"); qs.append("replace node /rdf:RDF/*[@rdf:about=\"" + uri + "\"] with <core:Container rdf:about=\"" + uri + "\" xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\" xmlns:core=\"http://rdfs.cyim.com/CoreContent#\" xmlns:wfdata=\"http://rdfs.cyim.com/WorkflowData#\">\n") .append(" <wfdata:Workflow>\n") .append(" <wfdata:raiseOn>2011-11-01T11:34:08Z</wfdata:raiseOn>\n") .append(" </wfdata:Workflow>\n") .append("</core:Container>\n"); session.execute(qs.toString()); } /** * Replaces a node and declares the 'wfdata' prefix on the 'wfdata:Workflow' node. * * @param uri Document uri. * @throws java.io.IOException IO exception */ private void replaceNode2(String uri) throws java.io.IOException { java.lang.StringBuilder qs = new java.lang.StringBuilder("xquery\n"); qs.append("declare namespace rdf = \"http://www.w3.org/1999/02/22-rdf-syntax-ns#\";\n"); qs.append("declare namespace core = \"http://rdfs.cyim.com/CoreContent#\";\n"); qs.append("declare namespace wfdata = \"http://rdfs.cyim.com/WorkflowData#\";\n"); qs.append("replace node /rdf:RDF/*[@rdf:about=\"" + uri + "\"] with <core:Container rdf:about=\"" + uri + "\" xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\" xmlns:core=\"http://rdfs.cyim.com/CoreContent#\">\n") .append(" <wfdata:Workflow xmlns:wfdata=\"http://rdfs.cyim.com/WorkflowData#\">\n") .append(" <wfdata:raiseOn>2011-11-01T11:34:08Z</wfdata:raiseOn>\n") .append(" </wfdata:Workflow>\n") .append("</core:Container>\n"); session.execute(qs.toString()); } /** * Query. Select depending on added node. * * @param expected Number of expected results. * @throws java.io.IOException IO exception */ private void query(int expected) throws java.io.IOException { // Query using wildcards. java.lang.StringBuilder qs = new java.lang.StringBuilder("xquery\n"); qs.append("declare namespace rdf = \"http://www.w3.org/1999/02/22-rdf-syntax-ns#\";\n"); qs.append("for $c in /rdf:RDF/*[//*:raiseOn<\"2011-11-02T14:19:07Z\"]\n"); qs.append("return <item about=\"{data($c/@rdf:about)}\" raiseOn=\"{data($c//*:raiseOn)}\"/>\n"); String results = session.execute(qs.toString()); System.out.println("\n" + qs.toString() + "\n" + results); Assert.assertEquals("Missing results!", expected, results.isEmpty()?0:results.split("\r\n|\r|\n").length); // Query using namespace. qs = new java.lang.StringBuilder("xquery\n"); qs.append("declare namespace rdf = \"http://www.w3.org/1999/02/22-rdf-syntax-ns#\";\n"); qs.append("declare namespace wfdata = \"http://rdfs.cyim.com/WorkflowData#\";\n"); qs.append("for $c in /rdf:RDF/*[//wfdata:raiseOn<\"2011-11-02T14:19:07Z\"]\n"); qs.append("return <item about=\"{data($c/@rdf:about)}\" raiseOn=\"{data($c//wfdata:raiseOn)}\"/>\n"); results = session.execute(qs.toString()); System.out.println("\n" + qs.toString() + "\n" + results); Assert.assertEquals("Missing results!", expected, results.isEmpty()?0:results.split("\r\n|\r|\n").length); } /** * Test entry point. * @throws java.io.IOException IO exception */ @Test public void run() throws java.io.IOException { System.out.println("Query using unchanged documents."); query(0); System.out.println("\nInserts a node to doc/1."); insertNode("doc/1"); System.out.println("\nQuery. Should get 1 document."); query(1); System.out.println("\nReplaces a node in doc/2 and declares the 'wfdata' prefix on the 'core:Container' node.\n."); replaceNode("doc/2"); System.out.println("\nQuery. Should get 2 documents."); query(2); System.out.println("\nReplaces a node in doc/3 and declares the 'wfdata' prefix on the 'wfdata:Workflow' node.\n."); replaceNode2("doc/3"); System.out.println("\nDatabase content:"); System.out.println(session.execute("xquery /")); System.out.println("\nQuery. Should get 3 documents."); System.out.println("This test is going to fail without wildcards as if the new node linked to 'wfdata' prefix was not seen."); query(3); } }

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Revised command-line API
by Christian Grün 13 Nov '11

13 Nov '11

Dear all, Starting with Version 7.0.3 (which might end up in 7.1), I have spent some time in reworking our command-line API. The latest revision is found at: http://files.basex.org/releases/latest/ Some of the new features: * a single dash ("-") is now supported to parse from standard input * multiple inputs, query files, queries and database commands can now be specified and will be evaluated in sequential order * spaces and commas are now alllowed in the declaration of variable bindings * variable bindings have been extended to support the Clark and EQName notations * arguments may now contain spaces if they are enclosed in quotes The new features are also documented in our Wiki: http://docs.basex.org/wiki/Startup_Options_(Snapshot) Everyone's feedback is welcome! Have fun, Christian ___________________________ BaseX Team Christian Grün Uni KN, Box 188 D-78457 Konstanz http://www.basex.org

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output option with filenames with space in windows
by Randy reed 13 Nov '11

13 Nov '11

This is probably an elementary question but I am using basex on windows and trying to invoke the program with -o option, but it keeps choking on the space in the file name. I've tried escaping the name with \ but to no avail. Heres the line: C:\>java -cp "C:\Program Files\Basex\basex.jar" org.basex.BaseX -o"C:\Documents and Settings\reedrw\My Documents\audit.xml" "C:/Documents and Settings/reedrw/My Documents/My Dropbox/student_ind_detail_byname_no_ext_var.xq" The error is: Error: File or directory "and Settings\reedrw\My Documents\audit.xml C:/Document s and Settings/reedrw/My Documents/My Dropbox/student_ind_detail_byname_no_ext_var.xq" not found. So it looks to me that the -o has stopped at the space and then it hast taken the rest as the full path of the actual query. Just to be clear I have tried it java -cp "C:\Program Files\Basex\basex.jar" org.basex.BaseX -o"C:/Documents and Settings/reedrw/My Documents/audit.xml" "C:/Documents and Settings/reedrw/My Documents/My Dropbox/student_ind_detail_byname_no_ext_var.xq" as well and that generates the same error thanks in advance -- Dr. Randall Reed Assistant Professor, Dept. of Philosophy and Religion Appalachian State University

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BaseXGUI Execution Problem (Windows 7 - 64bit)
by N.Ilker ERCIN 13 Nov '11

13 Nov '11

Hi there, I've downloaded BaseX installation file (BaseX703-20111111.185755.exe) and installed it on my PC, running "Windows 7 - *64bit* - English" version. No problems occured during installation. However when I tried to run Basex GUI (using the link file on the desktop / using the actual BaseX.exe / using BasexGui.bat / using basex.jar), GUI does not run. *BaseX.exe* : When I run it, a "javaw.exe" appears in the Task Manager but the GUI is not displayed. *BaseX.bat* : When I run it, the exception below is printed in the command line, but no further action appears. ----- Not found: /img/cmd-²nfo.png Uncaught error fetching image: java.lang.NullPointerException at sun.awt.image.URLImageSource.getConnection(Unknown Source) at sun.awt.image.URLImageSource.getDecoder(Unknown Source) at sun.awt.image.InputStreamImageSource.doFetch(Unknown Source) at sun.awt.image.ImageFetcher.fetchloop(Unknown Source) at sun.awt.image.ImageFetcher.run(Unknown Source) ----- *Basex.jar* : When I run it, the splash with "Launching BaseX - Please Wait" appears but nothing more. "javaw.exe" appears in the Task Manager. *NOTE-1* : There is NO PROBLEM with basexserver.bat and basexclient.bat, I can do what i want to do, using the command line. *NOTE-2* : I've the latest version of JavaRE (jre-6u29-windows-x64.exe) installed on my PC. *NOTE-3* : When I tried the same BaseX installation on my friends PC (Windows 7 - *32 bit *- English) "Basex.exe" works just fine, GUI is displayed successfully. *NOTE-4* : Before this version, I repeated same steps with BaseX-701.exe installation, but the problems were just the same. Please help me :( Am I doing something wrong? -- N. Ilker ERCIN

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BaseX has been updated on Filecluster.com
by FileCluster Support 12 Nov '11

12 Nov '11

Dear Developer, You have received this email because we have updated BaseX and this was the contact email for the application. Your application update status BaseX has been updated on FileCluster.com to the 7.0.2 version. You can check out your application on our site at: http://www.filecluster.com/Business-Office/Database-Management/Download-Bas… If you want to let your users know about your software page on FileCluster.com, to rate it and review it, you can also use this banner to link it: Promote your software As a software website, it`s our duty to help the developers promote their software. Fortunatelly, our software promotions are cost free, for more informations please visit our promotion page. Submit your press releases We are also accepting press releases from software developers. All you have to do is to submit your press release and we will take care of the rest. Useful developer links All the essential links you need as a developer on FileCluster.com: Link to us - download banners or text links for linking to FileCluster.com Submit your software - Submit your software via PAD or manually Submit your press release - submit your press releases using our online form Contact Us - contact our editors Promote your software - our promotions page If you do not wish to receive any further notifications or confirmations from FileCluster.com, please send us an email and request a contact removal (email removal). Keep in mind that this means you will not receive ANY contact from us, including: software promotions, update confirmations or security alerts (antivirus and spyware test results). Regards, Renta Cezar - Senior Editor FileCluster Labs www.filecluster.com

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FileGuru: BaseX 7.0.2 Published Today at FileGuru
by FileGuru 12 Nov '11

12 Nov '11

Dear BaseXWe are www.fileguru.com Editors. We have published your software BaseX 7.0.2 today in our site. Watch your listing here: Location: http://fileguru.com/BaseX/info Category: Business \ Information Database Your software has been reviewed and received 5 of 5 stars award. We like to congratulate you for this great useful software. Please feel free to display the award on your website and promotional materials. We recommend you to link your software, because this link will increase your ranking in the search engine and categories. And your software should be visible on the top! So, to provide a link to FileGuru from your site, you can find nice buttons at http://www.fileguru.com/linkus You can link to your software info page http://fileguru.com/BaseX/info Sincerely yours, FileGuru Team - http://www.fileguru.com © 2000-2011, FileGuru.

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BaseX 7.0.2: 11-11-11 Edition
by Christian Grün 11 Nov '11

11 Nov '11

Dear list, we have just released a new maintenance release of BaseX, which contains the following features and updates: FULL TEXT - Stemming support for Japanese text corpora (thanks to Toshio HIRAI!) STARTUP - Updated start scripts (thanks to Ralf Jung!) - System property "org.basex.path" added to specify project's home directory (thanks to malamut2!) XQUERY - Numerous minor XQuery 3.0 enhancements and fixes - Fix for db:optimize() calls (thanks to Martin Hillert!) STORAGE - Fix to retain newly introduced namespaces (thanks to Laurent Chevalier!) USERS - Default privileges for new users set to "none" (thanks to Pascal Heus!) REST - query base URI for evaluated queries is now $HTTPPATH (thanks to Florent Georges!) We recommend all of you to switch to the latest version.. Have fun, Christian BaseX Team

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