Indicating presence of nodes after switching the SPARQL Endpoint #30
Description
When switching the endpoint, the user currently has no indicator of whether a node (or edge) exists in the current database.
If we could make all nodes semi-transparent that do not exist in the current database, it would help to find the overlapping of the current graph with a different endpoint.
Important here:
- Let the user choose whether to do it or not - in case of sensitive information, sending data to a foreign SPARQL Endpoint would not be good.
- Don't send too many queries to external SPARQL Endpoints if not necessary