getTypes: Query meta-data of a SPARQL database
In dsidavis/RSPARQL: SPARQL client

Description Usage Arguments Details Author(s) See Also Examples

These functions implement generic SPARQL queries to obtain information about the structure of a SPARQL database in terms of its classes, types, predicates. This allows a user to get an understanding of the structure of the RDF triples and relationships in the database.

getTypes(..., fun = SPARQL, asIs = FALSE)
getPredicates(..., fun = SPARQL, asIs = FALSE)
getPredicatesByClass(..., classes = getClasses(..., fun = fun, asIs = TRUE),
                      fun = SPARQL, asIs = FALSE)
getClasses(owl = TRUE, ..., fun = SPARQL, asIs = FALSE)

`owl`	a logical value indicating whether to get the OWL and RDFS classes, or to query the RDF types. If `FALSE`, this is really the same as the `getTypes` function.
`...`	any additional arguments to be passed to `fun` which makes the `SPARQL` request and query. These are arguments such as the URL of the SPARQL endpoint, curl options or a curl handle to customize the HTTP request, and so on.
`fun`	a function that will send the SPARQL query. The default of `SPARQL` works well, but the caller has to provide the URL of the endpoint. For an endpoint that requires authentication (e.g. a username and password), it is convenient to write a simple function that passes these and the URL to `SPARQL` and then use this function as the value of `fun`.
`asIs`	a logical value that controls whether the class/type values returned are left as URIs or broken into their name and namespaces.