QueryServiceQuery Method (String, GraphCallback, SparqlResultsCallback, Object) |
Makes a SPARQL Query against the Knowledge Base.
Namespace:
VDS.RDF.Query.Inference.Pellet.Services
Assembly:
dotNetRDF (in dotNetRDF.dll) Version:
Syntax public void Query(
string sparqlQuery,
GraphCallback graphCallback,
SparqlResultsCallback resultsCallback,
Object state
)
Public Sub Query (
sparqlQuery As String,
graphCallback As GraphCallback,
resultsCallback As SparqlResultsCallback,
state As Object
)
Parameters
- sparqlQuery
- Type: SystemString
SPARQL Query. - graphCallback
- Type: VDS.RDFGraphCallback
Callback to invoke for queries that return a Graph. - resultsCallback
- Type: VDS.RDFSparqlResultsCallback
Callback to invoke for queries that return a Result Set. - state
- Type: SystemObject
State to pass to whichever callback function is invoked.
Remarks
If the operation succeeds the callback will be invoked normally, if there is an error the callback will be invoked with a instance of
AsyncError passed as the state which provides access to the error message and the original state passed in.
See Also