BaseX-Talk

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5 participants
5249 discussions

slash operator in Basex 9.0.2
by Giuseppe Celano 06 Jul '18

06 Jul '18

I have noticed that in BaseX 9.0.2 a query like <j>fgrtu</j>/data(.)/replace(., "g", "h") gets evaluated (returning "fhrtu"), while in BaseX 8.x, Exist, and Zorba I get an error message (since, as expected, replace() is preceded not by a node but a string). Is this a bug? Ciao, Giuseppe

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Add line-number function
by Павел Павлов 05 Jul '18

05 Jul '18

Hello! Can you add to BaseX (as module) function "line-number" which retrieves the line number of the expression ? Same as in eXist-db ( http://exist-db.org/exist/apps/fundocs/view.html?uri=http://exist-db.org/xq… ) or saxon ( http://www.saxonica.com/html/documentation/functions/saxon/line-number.html ). it is very important for us because our users want see error line number in xml docs when our xquery scripts validate them.

2 1

file:write and arrow operator
by Giuseppe Celano 04 Jul '18

04 Jul '18

Hi All, I was wondering if there is a way to take full advantage of the arrow operator with file:write(). If I want to write the results of a query, it would be ideal, I think, if the first parameter of file:write() were the content to write and the second the path: in this case I could have: my query => file:write("myPath"), where I could easily comment out "=> file:write("myPath")", if needed. However, the first parameter of file:write() is the path, so I end up with using the function in the way I usually use all the other functions (this is not a big problem, but I was wondering if I could take advantage of the arrow operator here: wouldn't it be better to have the path as the second parameter in file:write()?). Ciao, Giuseppe

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basex csv import cmd
by Kittelmann, Maike 04 Jul '18

04 Jul '18

Dear BaseX users, I often make use of importing files to BaseX via command line. For XML this works fine. Currently, I work with CSV-files that I import to BaseX via GUI. I would like to automatize this process as I do with XML-Import files. Unfortunately, I didn't find any instructions so far how I can apply these same GUI CSV import settings to the import via command line. Is this possible? Best regards, Maike Kittelmann -- Maike Kittelmann Metadaten und Datenkonversion Georg-August-Universität Göttingen Niedersächsische Staats- und Universitätsbibliothek Göttingen D-37070 Göttingen Papendiek 14 (Historisches Gebäude, Raum 1.617) +49 551 39-10249 kittelmann(a)sub.uni-goettingen.de http://www.sub.uni-goettingen.de<https://email.gwdg.de/owa/redir.aspx?C=TxY71q4kfUCSjLXiZog64-dZmmdWU9EIVyC3…>

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Passing sequence of strings to the java class
by Alexander Shpack 03 Jul '18

03 Jul '18

Hey, team! Just simple question. How to pass sequence of string to the java class? let $values := for $i in (1 to 3) return $i cast to xs:string return j:exec($values) In case when local function returns one item all is good. Otherwise j:exec takes array of item()+, but not the array of stings. If you just call j:exec(("1","2")) than all works as expected. Any thoughts? Is it bug or feature? ;) BaseX 9.0 Thanks! -- s0rr0w

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XPST0003 for decimal formats without any properties
by Reece Dunn 02 Jul '18

02 Jul '18

Hi All, Given the query: declare decimal-format test; () BaseX 9.0 reports: Error: Stopped at basex-9.0/file, 1/28: [XPST0003] Decimal-format property '' is invalid. This is a valid XQuery 3.1 file, as https://www.w3.org/TR/xquery-31/#doc-xquery31-DecimalFormatDecl denotes the property production as "*", not "+". Kind regards, Reece

2 1

Host 'files.basex.org' not reachable
by Kristian Kankainen 02 Jul '18

02 Jul '18

Hi I wanted to download a newer version of BaseX, but wasn't able to do so because the host is unreachable: > $ wget http://files.basex.org/releases/9.0.2/BaseX902.zip > [...] Name or service not known And my old versions of BaseX (zip-edition of 8.67 and 9.0) doesn't want to start anymore: > $ ./basexgui > java.util.concurrent.ExecutionException: java.io.IOException: Unknown > host 'files.basex.org'. > [...] Is some of your servers down? Best regards, Kristian K

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Unexpected removal of BaseX Database
by Arjan Loeffen 02 Jul '18

02 Jul '18

Dear BaseX people, We create a backup of a BaseX 8.6.4 database using a windows scheduled process: call basexclient -V -Uadmin -Padmin -c "CREATE BACKUP imvertor-*" We have a server process that interacts with the databases, all called Imvertor-*. In accessing the database at certain moments the backup process seems to conflict with the update process. This is visible in the log: [...] 11:59:12.012 127.0.0.1:60319 admin REQUEST [GET] http://localhost:8984/rest/ imvertor-jobs 11:59:12.106 127.0.0.1:60319 admin 200 95.65 ms 11:59:12.121 127.0.0.1:60319 admin REQUEST [DELETE] http://localhost:8984/rest/imvertor-jobs/2018-06-14-11-58-17-450.xml 11:59:12.137 127.0.0.1:60319 admin 200 5.08 ms 11:59:12.137 127.0.0.1:60322 admin REQUEST [POST] http://localhost:8984/rest/imvertor-jobs 11:59:12.200 127.0.0.1:60322 admin 200 73.59 ms 11:59:12.215 127.0.0.1:60322 admin REQUEST [POST] http://localhost:8984/rest/imvertor-jobs 11:59:21.075 127.0.0.1:60323 admin REQUEST SET QUERYINFO 0.13 ms 11:59:21.075 127.0.0.1:60323 admin OK QUERYINFO: true 0.1 ms *11:59:21.184 127.0.0.1:60323 <http://127.0.0.1:60323/> admin REQUEST CREATE BACKUP imvertor-* 0.21 ms* *11:59:22.372 127.0.0.1:60322 <http://127.0.0.1:60322/> admin 400 Database 'imvertor-jobs_665091421' could not be renamed. 10166.92 ms* *11:59:22.372 127.0.0.1:60322 <http://127.0.0.1:60322/> admin REQUEST [POST] http://localhost:8984/rest/imvertor-jobs <http://localhost:8984/rest/imvertor-jobs>* *11:59:27.309 127.0.0.1:60323 <http://127.0.0.1:60323/> admin ERROR Database 'imvertor-jobs' is being updated, or update was not completed. Backup for 'imvertor-jobs-regression' was created in 53.29 ms. Backup for 'imvertor-jobs_665091421' was created in 1262.1 ms. Backup for 'imvertor-models' was created in 4760.92 ms. Backup for 'imvertor-models-regression' was created in 51.58 ms. 6128.15 ms* *11:59:27.309 127.0.0.1:60322 <http://127.0.0.1:60322/> admin 404 Database 'imvertor-jobs' was not found. 4932.96 ms* 12:01:03.465 127.0.0.1:60325 admin REQUEST [GET] http://localhost:8984/rest/?command=list 12:01:03.481 127.0.0.1:60325 admin 200 3.24 ms 12:01:03.543 127.0.0.1:60325 admin REQUEST [GET] http://localhost:8984/rest/ imvertor-jobs 12:01:03.543 127.0.0.1:60325 admin 404 Database 'imvertor-jobs' was not found. 0.36 ms 12:01:03.543 127.0.0.1:60325 admin REQUEST [PUT] http://localhost:8984/rest/ imvertor-jobs 12:01:03.575 127.0.0.1:60325 admin 201 Database 'imvertor-jobs' created in 13.47 ms. 22.83 ms [...] This is rather a serious problem; the whole database is lost. Our software is set up such that the database is created when it is not found. Hence the last log... Do you recognize the problem, and can you specify how to avoid it? Hope this gives you enough info. Thanks in advance! -- Arjan Loeffen, Armatiek BV 06-12918997

2 2

GUI
by Giuseppe Celano 29 Jun '18

29 Jun '18

Hi, I have updated Java (10 from 8) and I cannot apparently customize the GUI anymore on my Mac (if I click on BaseXGUI > aboutBaseXGUI, I cannot access the relevant tabs). Is this a known issue? Moreover, if I start the GUI from the command line, I keep getting the warning message "Illegal reflective access by org.basex.gui.GUIMacOSX". Is there a way to avoid that? Thanks. Ciao, Giuseppe Universität Leipzig Institute of Computer Science, NLP Augustusplatz 10 04109 Leipzig Deutschland E-mail: celano(a)informatik.uni-leipzig.de E-mail: giuseppegacelano(a)gmail.com Web site 1: http://www.dh.uni-leipzig.de/wo/team/ Web site 2: https://sites.google.com/site/giuseppegacelano/

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Tracing query execution
by Iwan Briquemont 29 Jun '18

29 Jun '18

Hello, I use BaseX mostly for boolean queries, I have a hardware database and I check if specific hardware support features I need. It works great but when something is not as expected, it's hard to find out the reason. E.g. given an expression like: $some-value = $some-list and (custom:predicate() or $x > $y) I would like to know why it's true or false. For now I add trace() manually on the subexpressions, rerun, add trace to more specific parts, etc. Ideally I would want to break down the query execution so it shows the values of subparts of the query to pinpoint why it is false, e.g. have an output like: $some-value = $some-list and (custom:predicate() or $x > $y) -> false()$some-value = $some-list -> true()$some-value -> 1$some-list -> (1, 2, ..., 10)custom:predicate() or $x > $y -> false()custom:predicate() -> false()... # It should also go inside the function$x > $y -> false()$x -> 10$y -> 11 Any ideas how it could be achieved? Looking at the code, maybe a debug() (like iter() or item()) method could be added to Expr objects which would trace the expression query, file, line and the result of the expression (or probably the first x characters of the result to avoid huge output)? With an xquery function which would trigger it. I also thought of modifying the query programmatically to add trace() calls but that seems overly complicated. Best regards, Iwan

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