org.apache.clerezza.rdf.core.access

Interface QueryableTcProvider

All Superinterfaces:

TcProvider

All Known Implementing Classes:

SingleTdbDatasetTcProvider, VirtuosoWeightedProvider

public interface QueryableTcProvider
extends TcProvider

Extends the TcProvider interface for providers that support sparql queries.

Method Summary

Methods

Modifier and Type	Method and Description
Object	executeSparqlQuery(String query, UriRef defaultGraphUri) Executes any sparql query.

Methods inherited from interface org.apache.clerezza.rdf.core.access.TcProvider

createGraph, createMGraph, deleteTripleCollection, getGraph, getMGraph, getNames, getTriples, listGraphs, listMGraphs, listTripleCollections

Method Detail

executeSparqlQuery

Object executeSparqlQuery(String query,
                        UriRef defaultGraphUri)

Executes any sparql query. The type of the result object will vary depending on the type of the query.

Parameters:

query - the sparql query to execute

defaultGraph - the default graph against which to execute the query if not FROM clause is present

Returns:

the resulting ResultSet, Graph or Boolean value