Hi Johannes,
it is very likely you're missing some jars, take a look here
http://jena.apache.org/download/maven.html
Regards,
Sorin
Am 25.05.2022 um 08:31 schrieb johannes.he...@mercedes-benz.com.INVALID:
Hi Sorin,
thanks for your fast reply. I already tried your suggestion as well as this one:
@prefix ja: <http://jena.hpl.hp.com/2005/11/Assembler#> .
[] ja:loadClass "com.hp.hpl.jena.tdb2.TDB2" .
tdb:DatasetTDB2 rdfs:subClassOf ja:RDFDataset .
tdb:GraphTDB rdfs:subClassOf ja:Model .
Both lead to the same error as described in the initial post
(org.apache.jena.assembler.exceptions.NoSpecificTypeException: the root
https://km-ps.com/model/data/myDataset has no most specific type that is a
subclass of ja:Object)
Best regards,
Johannes
-----Ursprüngliche Nachricht-----
Von: Sorin Gheorghiu <sorin.gheorg...@uni-konstanz.de>
Gesendet: Mittwoch, 25. Mai 2022 08:19
An: users@jena.apache.org
Betreff: Re: Indexing existing TDB2 dataset with assembler file
Hi,
it seems you missed to initialize TDB for ex.
[] ja:loadClass "com.hp.hpl.jena.tdb.TDB" .
tdb:DatasetTDB rdfs:subClassOf ja:RDFDataset .
tdb:GraphTDB rdfs:subClassOf ja:Model .
Regards,
Sorin
Am 25.05.2022 um 08:03 schrieb johannes.he...@mercedes-benz.com.INVALID:
I have a TDB2 database with a dataset named "test". Via fuseki UI I can run
SparQL queries without any problems. Now I want to index my dataset with the following
command:
java -cp ./fuseki-server.jar jena.textindexer --desc=run/assembler.ttl
I get this error:
the root https://km-ps.com/model/data/myDataset has no most specific
type that is a subclass of ja:Object
doing: root: https://km-ps.com/model/data/mytextDataset with type:
http://jena.apache.org/text#TextDataset assembler class: class
org.apache.jena.query.text.assembler.TextDatasetAssembler
This is my assembler.ttl:
@prefix : <https://km-ps.com/model/data/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix kgdomain:<https://km-ps.com/model/domain#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix tdb: <http://jena.hpl.hp.com/2016/tdb#> .
@prefix text: <http://jena.apache.org/text#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#>
@prefix fuseki: <http://jena.apache.org/fuseki#> .
[] rdf:type fuseki:Server ;
fuseki:services (
:myservice
) .
:myservice rdf:type fuseki:Service ;
fuseki:name "test" ; # e.g : `s-query
--service=http://localhost:3030/myds "select * ..."`
fuseki:serviceQuery "query" ; # SPARQL query service
fuseki:serviceUpdate "update" ; # SPARQL update service
fuseki:serviceReadWriteGraphStore "data" ; # SPARQL Graph store
protocol (read and write)
fuseki:dataset :mytextDataset ;
.
## ---------------------------------------------------------------
# A TextDataset is a regular dataset with a text index.
:mytextDataset rdf:type text:TextDataset ;
text:dataset :myDataset ; # <-- replace `:my_dataset` with the desired
URI
text:index <#indexLucene> ;
.
# A TDB dataset used for RDF storage
:myDataset rdf:type tdb:DatasetTDB2 ; # <-- replace `:my_dataset` with the
desired URI - as above
tdb:location "/fuseki/run/databases/test" ;
# tdb:unionDefaultGraph true ; # Optional .
# Text index description
<#indexLucene> a text:TextIndexLucene ;
text:directory <file:/fuseki/run/databases/test> ; # <file:path> ; # <-- replace
`<file:path>` with your path (e.g., `<file:/.../
text:entityMap <#entMap> ;
text:storeValues true ;
text:analyzer [ a text:StandardAnalyzer ] ;
text:queryAnalyzer [ a text:KeywordAnalyzer ] ;
text:queryParser text:AnalyzingQueryParser ;
text:multilingualSupport true ; # optional .
# Entity map (see documentation for other options) <#entMap> a
text:EntityMap ;
text:defaultField "label" ;
text:entityField "uri" ;
text:uidField "uid" ;
text:langField "lang" ;
text:graphField "graph" ;
text:map (
[ text:field "label" ;
text:predicate rdfs:label ]
) .
Is there an easy solution to this problem? I would be thankful for any help.
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Sorin Gheorghiu Tel: +49 7531 88-3198
Universität Konstanz Raum: B705
78464 Konstanz sorin.gheorg...@uni-konstanz.de
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