[
https://issues.apache.org/jira/browse/STANBOL-409?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rupert Westenthaler resolved STANBOL-409.
-----------------------------------------
Resolution: Fixed
With Revision #1210685 RDFRepository for Yard, ReferencedSite,
ReferencedSiteManager and Entityhub where added. In addition an implementation
that can use Representations already retrieved by a query was added.
For Examples how to use the new API see the UnitTest "BackendTest":
Especially the new possibility to follow inverse properties is interesting
because it allows to select inverse properties for Entities:
The unit test uses an Example for the DBPedia Category
"Category:Harvard_University_alumni"
LDPath Program:
name = rdfs:label :: xsd:string;
parent = skos:broader :: xsd:anyURI;
childs = ^skos:broader :: xsd:anyURI;
members = ^<http://purl.org/dc/terms/subject> :: xsd:anyURI;
The Representation as stored in the Entityhub
skos:broader:[dbpedia:Category:Harvard_University_people,
dbpedia:Category:Alumni_by_university_or_college_in_Massachusetts,
dbpedia:Category:Ivy_League_alumni]
rdfs:type:[http://www.w3.org/2004/02/skos/core#Concept]
entityRank:[0.66937166]
rdfs:abel:[Harvard University alumni@en]
skos:prefLabel:[Harvard University alumni@en]
As one can see members and child categories are not stored with categories.
However the "^{property}" statement of LDPath allows to retrieve them.
name: [Harvard University alumni]
parent: [dbpedia:Category:Harvard_University_people,
dbpedia:Category:Alumni_by_university_or_college_in_Massachusetts,
dboedia:Category:Ivy_League_alumni]
childs: [dbpedia:Category:John_F._Kennedy_School_of_Government_alumni,
dbpedia:Category:Harvard_Law_School_alumni,
dbpedia:Category:Harvard_Medical_School_alumni,
dbpedia:Category:Harvard_Business_School_alumni]
members: [dbpedia:Edward_Said, dbpedia:Norman_Mailer, dbpedia:John_Lithgow,
dbpedia:John_Quincy_Adams, [.. and manny more ..]
> LDPath RDFBackend implementations for the Entityhub
> ---------------------------------------------------
>
> Key: STANBOL-409
> URL: https://issues.apache.org/jira/browse/STANBOL-409
> Project: Stanbol
> Issue Type: Sub-task
> Components: Entity Hub
> Reporter: Rupert Westenthaler
> Assignee: Rupert Westenthaler
>
> LDPath requires the implementation of the RDFBackend interface so that it can
> query data within an entity source. The plan is to provide implementation of
> this interface for the following Entityhub Interfaces:
> * Yard: This is mainly interesting because Yard implementations typically do
> not require an OSGI environment.
> * ReferencedSite
> * ReferencedSiteManater: to use LDPath over all referenced sites
> * Entityhub
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
