Here are the classes, structs, unions and interfaces with brief descriptions:

CQSparqlBinding	Handles a binding between a SPARQL query variable name and the value of the RDF node
CQSparqlConnection	Interface for accessing an RDF store
CQSparqlConnectionOptions	Encapsulates options given to QSparqlConnection. Some options are used only by some drivers
CQSparqlError	SPARQL error information
CQSparqlQuery	Means of executing and manipulating SPARQL statements
CQSparqlQueryModel	Read-only data model for SPARQL result sets
CQSparqlQueryOptions	Encapsulates query execution options given to QSparqlConnection::exec(const QSparqlQuery&, const QSparqlQueryOptions&). Some options are used only by some drivers
CQSparqlResult	Abstract interface for accessing the results of an executed QSparqlQuery
CQSparqlResultRow	Encapsulates a row in the results of a query