klinovp / NetageDescribeStrategy

A fork of the Netage repo to help with optimization

StardogDescribeHandler

Custom Describe handler for stardog. Handles resources(http://example.com/1) and hashresources(http://example.com/1#content) as one resource.

installation

To install the custom describe handler:

(change repository for the repository name, you want to use the describe handler with)

• Package with maven.
• copy the jar to the sever/dbms map.
• Start the stardog 5.3.0 server.
• stardog-admin.bat metadata set repository -o query.describe.strategy=NetageDescribeStrategy
• Use stardog-admin.bat metadata get repository
• check whether the query.describe.strategy option is set to NetageDescribeStrategy

By using the DESCRIBE the custom describe handler is used.

example

<http://www.example.com/subject1> a vocab:Subject;
                rdfs:label "Subject 1";
                dc:identifier "subject1" ;
                vocab:content <http://www.example.com/subject1#content> .

<http://www.example.com/subject1#content> a vocab:Content;
               rdf:value "Content of the subject".

With the default DESCRIBE on the http://www.example.com/subject1, we only would find the following block of triples:

<http://www.example.com/subject1> a vocab:Subject;
                rdfs:label "Subject 1";
                dc:identifier "subject1" ;
                vocab:content <http://www.example.com/subject1#content> .

With the custom Describe handler we will find also the related hashed subjects:

<http://www.example.com/subject1> a vocab:Subject;
                rdfs:label "Subject 1";
                dc:identifier "subject1" ;
                vocab:content <http://www.example.com/subject1#content> .

<http://www.example.com/subject1#content> a vocab:Content;
               rdf:value "Content of the subject".