[jira] [Resolved] (JENA-802) wrong identifiers returned by spatial:nearby when using bnodes

["Andy Seaborne (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/JENA-802?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Seaborne resolved JENA-802.
--------------------------------
       Resolution: Fixed
    Fix Version/s: Jena 2.12.2

> wrong identifiers returned by spatial:nearby when using bnodes
> --------------------------------------------------------------
>
>                 Key: JENA-802
>                 URL: https://issues.apache.org/jira/browse/JENA-802
>             Project: Apache Jena
>          Issue Type: Bug
>          Components: Spatial
>    Affects Versions: Fuseki 1.0.1, Fuseki 1.1.1
>         Environment: Linux Ubuntu 12:10. JVM 1.7.0_09
>            Reporter: Luigi Selmi
>            Assignee: Andy Seaborne
>             Fix For: Jena 2.12.2
>
>         Attachments: jena-spatial-assembler.ttl
>
>
> I had to use blank nodes for objects that do not have a public http uri. I imported a data set with geo:lat and geo:long coordinates in Fuseki 1.1.1 then I created the Lucence index as described in the doc about Jena Spatial. An example sub set I used is the following
> {noformat}
> @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
> @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
> @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
> @prefix airports_sc: <http://airports.dataincubator.org/schema/> .
> @prefix geo: <http://www.w3.org/2003/01/geo/wgs84_pos#> .
> _:node1 rdf:type airports_sc:LargeAirport ;
>     geo:lat "52.4539"^^xsd:float ;
>     geo:long "-1.74803"^^xsd:float ;
>     rdfs:label "Birmingham International Airport" 
>   . 
> {noformat}
> Then I run the following query
> {noformat}
> PREFIX spatial: <http://jena.apache.org/spatial#>
> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
> SELECT * 
> FROM <http://test.org/1/>
> {
>   ?airport spatial:nearby (52.45 -1.74 10 'km') .
>   ?airport rdfs:label ?placeName .
> }
> {noformat}
> The returned result was empty, then I removed the clause with the rdfs:label predicate and Fuseki returned a value for ?airport. This values is different  from the bnode assigned by Fuseki during the import and that is why the above query returned no results. 



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