BaseX-Talk December 2020

basex-talk@mailman.uni-konstanz.de

12 participants
14 discussions

recursively used variables
by Rob Stapper 12 Aug '24

12 Aug '24

Hi, The code[1] below and send as attachment generates a error message: “Static variable depends on itself: $Q{http://www.w3.org/2005/xquery-local-functions}test”. I use these variables to refer to my private functions in my modules so I can easyly refer to them in a inheritance situation. It’s not a big problem for me but I was wondering if the error-triggering is justified or that it should work. [1]=========================================== declare variable $local:test := local:test#1 ; declare %private function local:test( $i) { if ( $i > 0) then $local:test( $i - 1) } ; $local:test( 10) =========================================== Kind regards, Rob Stapper Sent from Mail for Windows 10 -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

4 7

Autocomplete with RESTXQ
by Imsieke, Gerrit, le-tex 21 Jul '21

21 Jul '21

Hi List, Can anyone recommend a lightweight vanilla Javascript autocomplete library that can easily be used together with BaseX RESTXQ? Maybe even a readily cloneable/modifiable example? I don’t have a preference for a server response format. The RESTXQ service may be configured to return XML, JSON, or HTML No CORS restrictions need to be considered, the query host is the same that delivers the HTML pages. Gerrit

4 7

Package for system integration
by karlo＠fastmail.com 20 Jun '21

20 Jun '21

I have packaged basex in a way that I believe will be easier for integration with package managers. https://klarinet.kos.ovh/fossil/basex-root-install/uv/basex-9.4.3.tar.gz >From the root of that archive, you can build and install like this. make make install # as root The above will install to the prefix /usr/local. You can set a different prefix. Here is an example. make clean make PREFIX=/usr make PREFIX=/usr install # as root A secondary benefit of this package is the removal of the bash dependency. Could a package like this be distributed officially? If that is agreeable, I am happy to try incorporating this into the present build system. Here is a utility for preparing the package. It depends on sh and other Unix-like utilities. https://klarinet.kos.ovh/fossil/basex-root-install/dir?ci=tip With distinguished salutations, Kralj Karlo

3 6

BaseX 9.4.2: Tweaks & Fixes
by Christian Grün 02 Apr '21

02 Apr '21

Dear all, We have released another 9.4 late-summer maintenance release with new performance tweaks and minor bug fixes: http://basex.org In addition, we have started a new Wiki article on XQuery optimizations, which we plan to extend step by step: https://docs.basex.org/wiki/XQuery_Optimizations We are looking forward to your feedback; have fun, Your BaseX Team

2 7

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

error "lock file does not exist" after "add" command
by Thomas Spitaler 13 Jan '21

13 Jan '21

Hi, in one of our projects we are using BaseX. So far we are very happy with our choice, but recently we got an error that we could not fix. The only solution that worked was to create a new, empty database. When trying to add a document to the database, we get an exception and a message „lock file does not exist“: $ open cap10_cap_store_prod Database 'cap10_cap_store_prod' was opened in 219.99 ms. $ add /home/thomas/tmp/test.xml Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de Version: BaseX 9.0.1 Java: Debian, 11.0.9 OS: Linux, amd64 Stack Trace: java.lang.RuntimeException: cap10_cap_store_prod: lock file does not exist. at org.basex.util.Util.notExpected(Util.java:61) at org.basex.data.DiskData.finishUpdate(DiskData.java:246) at org.basex.core.cmd.ACreate.update(ACreate.java:97) at org.basex.core.cmd.Add.run(Add.java:56) at org.basex.core.Command.run(Command.java:257) at org.basex.core.Command.execute(Command.java:93) at org.basex.api.client.LocalSession.execute(LocalSession.java:132) at org.basex.api.client.Session.execute(Session.java:36) at org.basex.core.CLI.execute(CLI.java:92) at org.basex.core.CLI.execute(CLI.java:76) at org.basex.BaseX.console(BaseX.java:196) at org.basex.BaseX.<init>(BaseX.java:171) at org.basex.BaseX.main(BaseX.java:42) Which lock file is the error referring to? Can we create it manually to make it work again? The error only happens in the database that we have been using so far (cap10_cap_store_prod). After creating and using a new one (cap10_cap_store_prod2) the problem does not occur. Here is the output of running list on the database: $ list Name Resources Size Input Path cap10_cap_store_prod 233387 1583797639 cap10_cap_store_prod2 241 1912414 testdb 1 4611 3 database(s). Did we hit a size limit of BaseX? I checked the server and it has enough free disk space and free inodes available. Some more background info: The system runs on a cluster of servers. BaseX runs on one of them, bound to port 1984. The other nodes in the cluster connect to the BaseX-Server via the network. In my understanding, this type of concurrency is supported by BaseX. The software on the nodes is implemented in Elixir. We wrote our own Elixir client library that is a thin wrapper around https://github.com/zadean/basexerl, an existing open source Erlang client library for BaseX. Our Elixir client library keeps open a pool of connections to the BaseX server. So far and until we encountered the above error everything worked perfectly. Also, after creating a new database everything works fine again. This error also occurs after shutting down all the nodes that connect to our BaseX instance. We checked using the lsof command and there are no connections open to the database other then the client we use to reproduce the error. Any help would be greatly appreciated! Kind regards, Thomas Kind regards, Thomas

2 4

FOP module
by Jerome Chauveau 07 Jan '21

07 Jan '21

Hi, I am trying to use the (too old ?) FOP module, but unsuccessfully. I copied that example : import module namespace fop = 'org.basex.modules.fop.FOP'; let $xsl := xslt:transform('fop.xml', 'fop.xsl') let $pdf := fop:transform($xsl) return file:write-binary('fop.pdf', $pdf) from this thead : [ https://mailman.uni-konstanz.de/pipermail/basex-talk/2014-February/006326.h… | https://mailman.uni-konstanz.de/pipermail/basex-talk/2014-February/006326.h… ] which generates that error (in a BaseX 9.3) : [XPTY0004] class org.basex.modules.fop.FOP tried to access private method 'void org.basex.query.value.item.B64.<init>(byte[])' (org.basex.modules.fop.FOP and org.basex.query.value.item.B64 are in unnamed module of loader 'app'). Caused by: FOP:transform(document-node()). Any suggestions on how to fix this ? Thanks Regards Jérôme

3 9

LDAP Module
by Maciej Nestorowicz 28 Dec '20

28 Dec '20

Hi, I wanted to know, is there any module in BaseX which is responsible for LDAP authentication and authorization? Kind Regards, Maciej Nestorowicz

1 0

Database access in a function
by Giuseppe G. A. Celano 18 Dec '20

18 Dec '20

Hi, I have a script where I join two databases. It works. However, when I try to put the content of this script in a function, and then call it (with the databases being the arguments), the execution is slowed down (I guess the indexes are not properly accessed). Is there a way to overcome this? Thanks.

2 1

write result to file?
by Nicholas 16 Dec '20

16 Dec '20

how is the return result from a query written to a file? thanks, Nick

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BaseX-Talk December 2020