BaseX-Talk January 2020

basex-talk@mailman.uni-konstanz.de

25 participants
25 discussions

Options for ft:search
by Sebastian Zimmer 15 Mar '21

15 Mar '21

Hi, I'd like to request a feature concerning the ft:search method: An `lserror` option that works exactly like the global option `LSERROR`. It would be nice if we could set the maximum Levenshtein distance specifically for each fuzzy search without having to adjust the global option. Another question on ft:search: Is there a reason why it doesn't have a `case` option just like ft:contains has one? Best regards, Sebastian

2 3

Feature Request: Save untitled, open scripts when exiting GUI
by Andreas Mixich 30 Jul '20

30 Jul '20

SublimeText has this nifty feature, that it saves all open tabs, even if the have no representation on the filesystem, so one can continue exactly, where one has left off. I find myself often to have several, unnamed, XQueries open, to test this concept, to compose that function, etc. It would be nice, if one could simply shut off and have them reopened next time without naming a file and saving each item in question. -- Minden jót, all the best, Alles Gute, Andreas Mixich

2 6

9.2.1 not found in maven central
by andreas.hengsbach＠nexoma.de 07 May '20

07 May '20

Hi, is there a reason, that I can't find the current Version (9.2.1) in maven central? Thanks and best regards, Andreas

3 3

Huge No of XML files.
by Sreenivasulu Yadavalli 03 Mar '20

03 Mar '20

Hi Team, We have a big problem for creating the collection bcoz of large no of xmls. Every day we are moving collections around 55k to 60k no of xml files large account. Its taking more than 18 hours. At that time we want access the collection for generating report its on lock mode and scrip that collection. Please help and do needful. Regards, YSL

4 22

BaseX and validating the entire database
by ERRINGTON Luke 03 Feb '20

03 Feb '20

Hello, We are evaluating moving from an RDBMS (Oracle), to BaseX as much of our source data originate in XML files and converting to tables in a relational schema is painful. In general BaseX looks great! However, one thing that we lose is referential integrity, and the ability to validate data in one XML file that is referring to data in another. Are there any possibilities within BaseX or an additional module that can do this? For example: * Can we validate using a schema that applies across a collection of documents, rather than just one? * Can we use Schematron (which looks cool) to apply its inteRnal XPaths to the entire collection of documents? * Or both? * Something else? We could try using XLinks, but that would involve changing our XML data/structure, and my understanding is that BaseX doesn't support (let alone validate) them, anyway. A situation I have in mind is something like (very, very simplified): A.xml <object id="1" name="One"> </object> B.xml <object id="2" name="Two"> </object> X.xml <mapping object_from_id="1" object_to_id="2" /> Is there any way to ensure that when X.xml is added to the database that the object IDs that it is referring to actually exist in the database too? I would also like to be able to ensure that all of the <object>s in the database have unique id attributes. A schema can do this within a file, but how can I ensure that when a new object xml file is added that it is not using an ID that already exists? Thanks for any answers, Luke

8 18

db:optimize
by Ветошкин Владимир 30 Jan '20

30 Jan '20

3 14

Load LibreOffice- and Word-documents?
by Ben Engbers 28 Jan '20

28 Jan '20

Hi, While we were discussing possible usecases for basex, a colleague asked me if it is also possible to load libreoffice and Word documents into Basex and then perform full-text analysis on them. In essence, these are both XML files, so it should be possible. Does anybody have experience with this? Ben

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NullPointerException parsing trivial query using XQJ (CLI works)
by Andreas Sewe 28 Jan '20

28 Jan '20

Hi, I get a weird NPE/parse error when interfacing with BaseX 9.3.1 via XQJ and even occurs for the following minimal query: <html>{.}</html> In other words, I just want to interpolate the context item. The gist of the XQJ calls is the following: > XQPreparedExpression expression = connection.prepareExpression("<html>{.}</html>"); > expression.bindDocument(XQConstants.CONTEXT_ITEM, "<context/>", null, null); > XQResultSequence results = expression.executeQuery(); > results.writeSequence(System.out, null); This results in the following message > XQJQS001 - Invalid XQuery syntax, syntax does not pass static validation. and a long and unfortunately obfuscated stack trace: > java.lang.NullPointerException > at net.xqj.basex.bin.bz.a(Unknown Source) > at net.xqj.basex.bin.bv.c(Unknown Source) > at net.xqj.basex.bin.bC.bE(Unknown Source) > at net.xqj.basex.bin.bC.by(Unknown Source) > at net.xqj.basex.bin.bC.bu(Unknown Source) > at net.xqj.basex.bin.bC.bj(Unknown Source) > at net.xqj.basex.bin.bC.bi(Unknown Source) > at net.xqj.basex.bin.bC.bh(Unknown Source) > at net.xqj.basex.bin.bC.aY(Unknown Source) > at net.xqj.basex.bin.bC.aX(Unknown Source) > at net.xqj.basex.bin.bC.aW(Unknown Source) > at net.xqj.basex.bin.bC.aV(Unknown Source) > at net.xqj.basex.bin.bC.aU(Unknown Source) > at net.xqj.basex.bin.bC.aT(Unknown Source) > at net.xqj.basex.bin.bC.aS(Unknown Source) > at net.xqj.basex.bin.bC.aR(Unknown Source) > at net.xqj.basex.bin.bC.aQ(Unknown Source) > at net.xqj.basex.bin.bC.aP(Unknown Source) > at net.xqj.basex.bin.bC.aO(Unknown Source) > at net.xqj.basex.bin.bC.aN(Unknown Source) > at net.xqj.basex.bin.bC.aM(Unknown Source) > at net.xqj.basex.bin.bC.aL(Unknown Source) > at net.xqj.basex.bin.bC.aK(Unknown Source) > at net.xqj.basex.bin.bC.R(Unknown Source) > at net.xqj.basex.bin.bC.Q(Unknown Source) > at net.xqj.basex.bin.bC.N(Unknown Source) > at net.xqj.basex.bin.bC.bS(Unknown Source) > at net.xqj.basex.bin.bC.bR(Unknown Source) > at net.xqj.basex.bin.bC.bM(Unknown Source) > at net.xqj.basex.bin.bC.bL(Unknown Source) > at net.xqj.basex.bin.bC.bK(Unknown Source) > at net.xqj.basex.bin.bC.by(Unknown Source) > at net.xqj.basex.bin.bC.bu(Unknown Source) > at net.xqj.basex.bin.bC.bj(Unknown Source) > at net.xqj.basex.bin.bC.bi(Unknown Source) > at net.xqj.basex.bin.bC.bh(Unknown Source) > at net.xqj.basex.bin.bC.aY(Unknown Source) > at net.xqj.basex.bin.bC.aX(Unknown Source) > at net.xqj.basex.bin.bC.aW(Unknown Source) > at net.xqj.basex.bin.bC.aV(Unknown Source) > at net.xqj.basex.bin.bC.aU(Unknown Source) > at net.xqj.basex.bin.bC.aT(Unknown Source) > at net.xqj.basex.bin.bC.aS(Unknown Source) > at net.xqj.basex.bin.bC.aR(Unknown Source) > at net.xqj.basex.bin.bC.aQ(Unknown Source) > at net.xqj.basex.bin.bC.aP(Unknown Source) > at net.xqj.basex.bin.bC.aO(Unknown Source) > at net.xqj.basex.bin.bC.aN(Unknown Source) > at net.xqj.basex.bin.bC.aM(Unknown Source) > at net.xqj.basex.bin.bC.aL(Unknown Source) > at net.xqj.basex.bin.bC.aK(Unknown Source) > at net.xqj.basex.bin.bC.R(Unknown Source) > at net.xqj.basex.bin.bC.Q(Unknown Source) > at net.xqj.basex.bin.bC.P(Unknown Source) > at net.xqj.basex.bin.bC.d(Unknown Source) > at net.xqj.basex.bin.bC.b(Unknown Source) > at net.xqj.basex.bin.bC.a(Unknown Source) > at net.xqj.basex.bin.bC.a(Unknown Source) > at net.xqj.basex.bin.bJ.<init>(Unknown Source) > at net.xqj.basex.bin.bd.a(Unknown Source) > at net.xqj.basex.bin.H.<init>(Unknown Source) > at net.xqj.basex.bin.H.a(Unknown Source) > at net.xqj.basex.bin.u.a(Unknown Source) > at net.xqj.basex.bin.u.a(Unknown Source) > at net.xqj.basex.bin.w.prepareExpression(Unknown Source) > at net.xqj.basex.bin.w.prepareExpression(Unknown Source) Executing the same query using "bin/basex -i context.xml query.xq" outputs the expected result: > <html> > <context/> > </html> I have a minimal (Maven-based) test project, in case you want to reproduce the bug. I can also file the issue on GitHub, if that's the preferred method, but if I read <https://github.com/BaseXdb/basex/issues/new> correctly, then I should post here first. Best wishes, Andreas

2 3

Test for changes in the data structure
by benjamin.tobler＠sbb.ch 28 Jan '20

28 Jan '20

Dear all I am extracting some nodes from a xml document. The structure of the xml document can change over time. Therefore, I would like to install a mechanism, which is testing for changes of the data structure of the relevant nodes. The schema is described in multiple xsd documents but one xsd document is referring to all others (screenshot). [cid:image003.jpg@01D5D502.4E0C7DB0] I was testing the complete xml against the this xsd, which is referring to all other xsds, but I received the error message: "Validation could not be started: Java heap space" by using the function "validate:xsd". However, actually I only want to test the data structure of specific nodes and not the complete xml for changes. Is it possible to do this with BaseX? Thank you for your help! Best Regards Benjamin

2 1

saxon.jar on docker image
by France Baril 26 Jan '20

26 Jan '20

Hi I'm using the public 9.3.1 image. I've been able to set up most of my app, but I get an error when trying to apply an xsl. Cannot compile and the error mention that Xalan is used. I just added the saxon9.jar in /srv/basex/lib/custom the way I would have on my normal local installation. FROM basex/basexhttp:9.3.1 ... COPY ./image-setup-files/bx/saxon9.jar /srv/basex/lib/custom/saxon9.jar 17:04:57.447 172.17.0.1:39752 admin 400 Stopped at /srv/basex/webapp/Accounting_Bilans.xqm, 301/25: [xslt:error] ERROR: 'Could not compile stylesheet' FATAL ERROR: 'Error checking type of the expression 'funcall(lower-case, [parameter-ref(legal-entity/reference)])'.' :Error checking type of the expression 'funcall(lower-case, [parameter-ref(legal-entity/reference)])'. javax.xml.transform.TransformerConfigurationException: Error checking type of the expression 'funcall(lower-case, [parameter-ref(legal-entity/reference)])'. at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl.newTemplates(TransformerFactoryImpl.java:988) at org.basex.query.func.xslt.XsltTransform.transform(XsltTransform.java:122) at org.basex.query.func.xslt.XsltTransform.transform(XsltTransform.java:62) at org.basex.query.func.xslt.XsltTransform.item(XsltTransform.java:40) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:50) at org.basex.query.expr.gflwor.GFLWOR.value(GFLWOR.java:80) at org.basex.query.func.StaticFunc.invValue(StaticFu... 5305.15 ms -- France Baril Architecte documentaire / Documentation architect france.baril(a)architextus.com

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BaseX-Talk January 2020