May 2017 - BaseX-Talk - mailman.uni-konstanz.de

Re: [basex-talk] Could not reserve enough space for object heap
by Christian Grün 16 May '17

16 May '17

Dear Jim, Did you already try to change/reduce the value of the -Xmx flag in the basexhttp.bat start script? Cheers, Christian Am 17.05.2017 00:40 schrieb "Jim Saiya" <jsaiya(a)formatdata.com>: I'm having the same issue Cong Hui has described in this Stack Overflow question: http://stackoverflow.com/q/43331077/4852675 Namely, that I get this error when trying to run basexhttp.bat ---- Error occurred during initialization of VM Could not reserve enough space for 1433600KB object heap ---- My system is running Windows 10 Home version 1703 build 15063.296 (just updated), with 4.00 GB RAM Is there a solution? *Jim Saiya* XML Analyst Developer Detroit, MI ✆ *703.731.5119* ✉ jsaiya(a)formatdata.com [in] www.linkedin.com/in/jimsaiya

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Could not reserve enough space for object heap
by Jim Saiya 16 May '17

16 May '17

I'm having the same issue Cong Hui has described in this Stack Overflow question: http://stackoverflow.com/q/43331077/4852675 Namely, that I get this error when trying to run basexhttp.bat ---- Error occurred during initialization of VM Could not reserve enough space for 1433600KB object heap ---- My system is running Windows 10 Home version 1703 build 15063.296 (just updated), with 4.00 GB RAM Is there a solution?   Jim Saiya XML Analyst Developer Detroit, MI ✆ 703.731.5119 ✉ jsaiya(a)formatdata.com [in] www.linkedin.com/in/jimsaiya

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lib/custom directory
by Christian Grün 16 May '17

16 May '17

Hi Andy, hi Vincent, I have just added a custom directory to the ZIP and EXE distributions [1,2]. The Windows distribution is still work in progress, because I need to find a way to dynamically import all available libraries [3]. Your testing feedback is welcome, Christian [1] https://github.com/BaseXdb/basex/issues/1456 [2] http://files.basex.org/releases/latest/ [3] https://github.com/BaseXdb/basex/issues/1457 On Fri, May 12, 2017 at 12:51 AM, Lizzi, Vincent <Vincent.Lizzi(a)taylorandfrancis.com> wrote: > I like the idea of having a “custom” lib folder, also for the .zip > distribution. That would make updating to new versions of BaseX a little > easier. > > > > Sent from my Windows 10 phone > > > > From: Christian Grün > Sent: Thursday, May 11, 2017 4:09 PM > To: Andy Bunce > Cc: basex-talk(a)mailman.uni-konstanz.de > Subject: Re: [basex-talk] Java Modules - Constructor > > > >> In fact I have modified the bat to add a "lib2" folder where I can easier >> manage extension jars. >> >> set CP=%MAIN%/BaseX.jar;%MAIN%/lib/*;%MAIN%/lib2/* > > Good point. For the Windows executable, I thought about adding a > 'custom' sub-directory in the lib folder. The jars in the lib > directory could be deleted with each update, but the custom folder > would be preserved. > >> But is the original problem a bug? >> That is after installing the jar via REPO install t:new("aaa") fails >> although it works when added to lib/ > > Be sure I’ll check this out later this week. >

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Configuring basexgui - keeping directory context
by Bridger Dyson-Smith 15 May '17

15 May '17

Hi all -- apologies for the strange title: I'm not quite sure how to word my question. I'm having a problem with maintaining the correct context of basexgui, particularly with testing some .bxs files. I have a directory where I've been keeping my BaseX installs: /usr/home/bridger/src/basex = $baseXhome. I've been in the habit of starting new tests and projects in the repo directory in $baseXhome; e.g. $baseXhome/repo/new-test. In the new-test directory, I have the following: new-test/ data/ resources/ add.xq .basex .basexgui .basexhome check.bxs add.bxs check.bxs is a simple script: CHECK foo RUN add.bxs CLOSE add.bxs runs an xquery script: RUN resources/add.xq and the `add.xq` is (surprisingly) another simple script: let $msg := file:current-dir() return $msg The problem I'm having is that, unless I `cd ~/src/basex/repo/new-test && basexgui`, `basexgui` isn't able to determine the relative file path(s) of any of the secondary scripts (add.bxs and resources/add.xq). While it wouldn't be a terrible burden to launch the GUI from a new terminal (thank heavens for multiplexers!), the problem there is that basexgui seems to default to (re)opening the last directory where it was launched; in other words 1. `cd ~/src/basex/repo/new-test && basexgui` and the GUI launches and things look great. 2. in a new terminal window: `cd ~/src/basex/repo/old-test && basexgui` and the GUI launches and opens the new-test directory. So, I guess that's two problems, but they're both somewhat related to the relative directory path context of the GUI. I've tried adding .basexhome (manually) and .basexgui (manually and letting the GUI add them automatically), but those files don't seem to help matters. Is there anything else that I can try to resolve this? I know that I can use absolute file paths, but I have a simple project that I want to share with a colleague. Is the solution to add some XQuery that will determine file paths, and add/insert that into the command .bxs files? Thanks so much for your time and trouble. Best, Bridger

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Re: [basex-talk] Java Modules - Constructor
by Andy Bunce 15 May '17

15 May '17

Great. I believe the windows exe has a hard coded class path so ignores any additions. /Andy On 8 May 2017 at 13:24, kovacic <kovacic(a)dke.uni-linz.ac.at> wrote: > Thank you Andy. It works by starting the GUI using the basexgui.bat. > > Regards > Ilko > > Am 08.05.2017 um 14:21 schrieb Andy Bunce: > > > 1. download + unzip http://files.basex.org/releases/8.6.3/BaseX863.zip > 2. copy hello-test.jar to lib/ > 3. run bin/basexgui.bat > 4. execute: > > declare namespace t='org.basex.modules.Hello'; > let $obj := t:new('works for me') > return t:hello($obj) > > Regards > /Andy > > On 8 May 2017 at 13:16, kovacic <kovacic(a)dke.uni-linz.ac.at> wrote: > >> Hi Andy, >> >> I followed the instructions from here http://docs.basex.org/wiki/Rep >> ository#Java. >> >> I copied the jar to the basex/lib/ folder but it still does not work. >> Which version of BaseX are you using? >> >> Regards >> Ilko >> >> Am 08.05.2017 um 13:43 schrieb Andy Bunce: >> >> Hi Ilko, >> >> >The repo folder was completely empty. >> So you want to install it in the repository, using repo install? >> >> My test was installing via copying the jar to basex/lib/ where it works >> (for me). >> If I use repo install I get the same problem as you. >> >> This may be a bug/feature. >> It is possible that using the full EXPath Packaging [1] xar would work >> although I have not tried it. >> This would involve adding an XQuery file with expath-pkg.xml and >> basex.xml files to create a xar wrapping the jar, structured as here [2] >> The issue [3] may be relevant. >> >> Regards >> /Andy >> >> hello-test.jar >> <https://drive.google.com/file/d/0B_HWsgek7hAeTjFnSFg3cGVpMXc/view?usp=drive…> >> >> [1] http://docs.basex.org/wiki/Repository#Java_2 >> [2] https://github.com/expkg-zone58/metadata-extract/tree/master/src/main >> [3] https://github.com/BaseXdb/basex/issues/1413 >> >> >> >> On 8 May 2017 at 11:44, kovacic <kovacic(a)dke.uni-linz.ac.at> wrote: >> >>> Hi Andy, >>> >>> I have removed all other existing modules before installing this module. >>> The repo folder was completely empty. >>> >>> Regards >>> Ilko >>> >>> Am 05.05.2017 um 19:29 schrieb Andy Bunce: >>> >>> Hi IIko >>> >>> Your code and: >>> >>> declare namespace t='org.basex.modules.Hello'; >>> let $obj := t:new('works for me') >>> return t:hello($obj) >>> >>> Returns: >>> >>> Hello works for me >>> >>> Could be be that you have multiple versions of the jar on the path? >>> >>> Regards >>> /Andy >>> >>> On 5 May 2017 at 11:20, kovacic <kovacic(a)dke.uni-linz.ac.at> wrote: >>> >>>> Hi all, >>>> >>>> I am running BaseX 8.6.3 currently and struggling with the inclusion of >>>> modules written in Java. I have extended the Hello World example: >>>> >>>> package org.basex.modules; >>>> >>>> public class Hello { >>>> >>>> private String str = "BaseX"; >>>> >>>> public Hello() {} >>>> >>>> public Hello(String str) { >>>> this.str = str; >>>> } >>>> >>>> public String hello(final String world) { >>>> return "Hello " + world; >>>> } >>>> >>>> public String hello() { >>>> return "Hello " + str; >>>> } >>>> } >>>> >>>> I can pack it into a jar-file and install it successfully. My jar-file >>>> is structured as following: >>>> >>>> hello.jar >>>> - META-INF >>>> - MANIFEST.MF >>>> - org >>>> - basex >>>> - modules >>>> - Hello.class >>>> >>>> Here is the content of my manifest.mf: >>>> >>>> Manifest-Version: 1.0 >>>> Main-Class: org.basex.modules.Hello >>>> >>>> The methods of the Hello-class can be called without any problems when >>>> the module is imported: >>>> >>>> import module namespace t='org.basex.modules.Hello'; >>>> >>>> t:hello('text') >>>> >>>> However, when I try to explicitly create the object by calling the >>>> constructor (new) with arguments it fails: >>>> >>>> declare namespace t='org.basex.modules.Hello'; >>>> >>>> let $obj := t:new('test') >>>> >>>> return '' >>>> >>>> When I try to call the constructor I receive the error [XPST0017] >>>> Unknown function: Q{org.basex.modules.Hello}new. >>>> >>>> Since I am able to execute the FileWriter example ( >>>> http://docs.basex.org/wiki/Java_Bindings#Namespace_Declarations) which >>>> calls a constructor with an argument I would like to know if this behavior >>>> is a bug or if I am missing an important point. >>>> >>>> Regards, >>>> Ilko >>>> >>>> >>>> >>> >>> -- >>> *Ilko Kovacic* >>> Wissenschaftlicher Mitarbeiter >>> Institut für Wirtschaftsinformatik - Data & Knowledge Engineering >>> >>> >>> *JOHANNES KEPLER UNIVERSITÄT LINZ* >>> Altenberger Straße 69 >>> Science Park III, S3 111 >>> 4040 Linz, Österreich >>> T +43 732 2468 4286 <+43%20732%2024684286> >>> ilko.kovacic(a)jku.at >>> www.dke.jku.at >>> >> >> >> -- >> *Ilko Kovacic* >> Wissenschaftlicher Mitarbeiter >> Institut für Wirtschaftsinformatik - Data & Knowledge Engineering >> >> >> *JOHANNES KEPLER UNIVERSITÄT LINZ* >> Altenberger Straße 69 >> Science Park III, S3 111 >> 4040 Linz, Österreich >> T +43 732 2468 4286 <+43%20732%2024684286> >> ilko.kovacic(a)jku.at >> www.dke.jku.at >> > > > -- > *Ilko Kovacic* > Wissenschaftlicher Mitarbeiter > Institut für Wirtschaftsinformatik - Data & Knowledge Engineering > > > *JOHANNES KEPLER UNIVERSITÄT LINZ* > Altenberger Straße 69 > Science Park III, S3 111 > 4040 Linz, Österreich > T +43 732 2468 4286 <+43%20732%2024684286> > ilko.kovacic(a)jku.at > www.dke.jku.at >

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Broken URLs for RPM-based repos
by Jacob Borisov 15 May '17

15 May '17

Hello. I've found that all the URLs for rpm-based repositories listed at http://basex.org/products/download/all-downloads/ are broken. For example, http://download.opensuse.org/repositories/home:/basex:/opensuse/CentOS_7/ho… URL returns "Object not found!" error.

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Which paper to cite
by Bram Vanroy 11 May '17

11 May '17

Dear BaseX team I'd like to cite the BaseX database but I am not sure which paper I should refer to. I found all BaseX papers<http://basex.org/about-us/publications/>, but is there one specific paper that you want researchers to cite when refering to the database system? Kind regards Bram Vanroy

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BaseX stop scripts
by Thomas Daly 11 May '17

11 May '17

Hello, a) I don't see the point of the 'basexserverstop' and 'basexhttpstop' scripts. If I run the server as a foreground process, the only way of stopping it (that I'm aware of) is to press CTRL-C, in which case there is no opportunity to run 'basexserverstop'. If I run the server as a background process, how will the 'basexserverstop' script know which process ID to kill? b) Please can I have a login for the documentation wiki? I think I tried applying through the site, but didn't receive a response. Best regards, Thomas

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File name changed
by celano＠informatik.uni-leipzig.de 11 May '17

11 May '17

Hi All, It is not clear to me why, when I tried to save the result of one query in a file called 6-2.xml, BaseX automatically converted this name into 4.xml. Similar name changes happened with files I wanted to name 1-2.xml and 10-2.xml. I attach part of the query info output (with highlights for the relevant points) Query: declare variable $pp := doc("/cluster/home/g/files/all.xml")/d/t; for $s at $c in collection("/cluster/home/g/files/splitted-db/")[6] return file:write("/cluster/home/g/results2/" || 6-2 || ".xml", <sub-db>{ for $e in $s//d let $db := $pp[$e/p = ./p and $e/f = ./f] return if ($db) then element d {$e/@*, $e/*, for $u in $db/l return element e {$u/text()}} else $e }</sub-db> ) Compiling: - pre-evaluating doc("/cluster/home/g/files/all.xml") - pre-evaluating collection("/cluster/home/g/files/splitted-db/") - rewriting ((db:open-pre("splitted-db",0), ...))[position() = 6] - type check removed: $c_2 as xs:integer - pre-evaluating (6 - 2) - pre-evaluating concat("/cluster/home/g/results2/", 4, ".xml") - rewriting descendant-or-self step(s) - swapping operands: (p = $e_3/*:p) - swapping operands: (f = $e_3/*:f) - rewriting ((p = $e_3/*:p) and (f = $e_3/*:f)) to predicate(s) - pre-evaluating boolean((p = $e_3/*:p)) - pre-evaluating boolean((f = $e_3/*:f)) - rewriting singleton for to let - inlining $s_1 - converting descendant::*:d to child steps - inlining $c_2 - simplifying flwor expression Best, Giuseppe

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Re: [basex-talk] Java Modules - Constructor
by Andy Bunce 08 May '17

08 May '17

Hi Ilko, >The repo folder was completely empty. So you want to install it in the repository, using repo install? My test was installing via copying the jar to basex/lib/ where it works (for me). If I use repo install I get the same problem as you. This may be a bug/feature. It is possible that using the full EXPath Packaging [1] xar would work although I have not tried it. This would involve adding an XQuery file with expath-pkg.xml and basex.xml files to create a xar wrapping the jar, structured as here [2] The issue [3] may be relevant. Regards /Andy hello-test.jar <https://drive.google.com/file/d/0B_HWsgek7hAeTjFnSFg3cGVpMXc/view?usp=drive…> [1] http://docs.basex.org/wiki/Repository#Java_2 [2] https://github.com/expkg-zone58/metadata-extract/tree/master/src/main [3] https://github.com/BaseXdb/basex/issues/1413 On 8 May 2017 at 11:44, kovacic <kovacic(a)dke.uni-linz.ac.at> wrote: > Hi Andy, > > I have removed all other existing modules before installing this module. > The repo folder was completely empty. > > Regards > Ilko > > Am 05.05.2017 um 19:29 schrieb Andy Bunce: > > Hi IIko > > Your code and: > > declare namespace t='org.basex.modules.Hello'; > let $obj := t:new('works for me') > return t:hello($obj) > > Returns: > > Hello works for me > > Could be be that you have multiple versions of the jar on the path? > > Regards > /Andy > > On 5 May 2017 at 11:20, kovacic <kovacic(a)dke.uni-linz.ac.at> wrote: > >> Hi all, >> >> I am running BaseX 8.6.3 currently and struggling with the inclusion of >> modules written in Java. I have extended the Hello World example: >> >> package org.basex.modules; >> >> public class Hello { >> >> private String str = "BaseX"; >> >> public Hello() {} >> >> public Hello(String str) { >> this.str = str; >> } >> >> public String hello(final String world) { >> return "Hello " + world; >> } >> >> public String hello() { >> return "Hello " + str; >> } >> } >> >> I can pack it into a jar-file and install it successfully. My jar-file is >> structured as following: >> >> hello.jar >> - META-INF >> - MANIFEST.MF >> - org >> - basex >> - modules >> - Hello.class >> >> Here is the content of my manifest.mf: >> >> Manifest-Version: 1.0 >> Main-Class: org.basex.modules.Hello >> >> The methods of the Hello-class can be called without any problems when >> the module is imported: >> >> import module namespace t='org.basex.modules.Hello'; >> >> t:hello('text') >> >> However, when I try to explicitly create the object by calling the >> constructor (new) with arguments it fails: >> >> declare namespace t='org.basex.modules.Hello'; >> >> let $obj := t:new('test') >> >> return '' >> >> When I try to call the constructor I receive the error [XPST0017] Unknown >> function: Q{org.basex.modules.Hello}new. >> >> Since I am able to execute the FileWriter example ( >> http://docs.basex.org/wiki/Java_Bindings#Namespace_Declarations) which >> calls a constructor with an argument I would like to know if this behavior >> is a bug or if I am missing an important point. >> >> Regards, >> Ilko >> >> >> > > -- > *Ilko Kovacic* > Wissenschaftlicher Mitarbeiter > Institut für Wirtschaftsinformatik - Data & Knowledge Engineering > > > *JOHANNES KEPLER UNIVERSITÄT LINZ* > Altenberger Straße 69 > Science Park III, S3 111 > 4040 Linz, Österreich > T +43 732 2468 4286 <+43%20732%2024684286> > ilko.kovacic(a)jku.at > www.dke.jku.at >

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