Page History

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• VirtualCollectionRDF.title
• VirtualCollectionRDF.description
• VirtualCollectionRDF.size             (NOTE:  Defined in Collections ontology. Is there an equivalent in the ORE ontology?)size
• VirtualCollectionRDF.visibility       (NOTE: ' Visibility' implementation is TBD.)

Challenges

Example Query

# _VIRTUAL_COLLECTION_URI_ = "http://localhost:3000/individual/vc123"
SELECT ?title ?description ?size ?visibility
WHERE
{
   <http://localhost:3000/individual/vc123> <http://purl.org/dc/elements/1.1/title> ?title .
   <http://localhost:3000/individual/vc123> <http://purl.org/dc/elements/1.1/description> ?description .
   <http://localhost:3000/individual/vc123> <http://purl.org/dc/elements/1.1/size> ?size .
   <http://localhost:3000/individual/vc123> <http://purl.org/dc/elements/1.1/visibility> ?visibility .
}    

Notes

• This should be fairly straightforward query that matches a single Virtual Collection.See notes inline with Data Returned list

Questions

• size is not currently defined in VirtualCollectionRDF because I'm modeling the ORE ontology. It is defined in the Collections ontology. Is there an equivalent in the ORE ontology?
• The implementation of visibility (i.e., PUBLIC, PRIVATE, SHARED) has not yet been fully designed.
• From the SPARQL doc, it appears that if any one of the selected 'objects' is not defined for a virtual collection, then it will not be included in the results.  I have not tested this.

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Get List of Virtual Collections with Pagination

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• VirtualCollectionRDF.title
• VirtualCollectionRDF.description
• VirtualCollectionRDF.size             (NOTE:  Defined in Collections ontology. Is there an equivalent in the ORE ontology?)
• VirtualCollectionRDF.visibility       (NOTE: ' Visibility' implementation is TBD.)

Challenges

• How does SPARQL handle sorting?
• How does SPARQL track paginated results?  How does SPARQL specifying track tokens for retrieving the next set of search results?
• The metadata involved in the search query and in the returned result are fairly straightforward.
• See notes inline with Data Returned list.

...

• VirtualCollectionRDF.title
• VirtualCollectionRDF.description
• VirtualCollectionRDF.size   (NOTE:  Defined in Collections ontology. Is there an equivalent in the ORE ontology?)

Challenges

•  Same as for "Owned by Me and Sorted by Collection Name"

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