Package org.aksw.jenax.dataaccess.sparql.factory.execution.query

Class QueryExecutionFactories

java.lang.Object

org.aksw.jenax.dataaccess.sparql.factory.execution.query.QueryExecutionFactories

public class QueryExecutionFactories
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	QueryExecutionFactories.QueryExecutionFactoryOverRdfDataSource

Field Summary

Fields

Modifier and Type	Field	Description
protected static final org.apache.jena.query.Query	datasetHashQuery

Constructor Summary

Constructors

Constructor	Description
QueryExecutionFactories()

Method Summary

Modifier and Type	Method	Description
static QueryExecutionFactory	adapt(QueryExecFactory queryExecFactory)
static QueryExecutionFactory	empty()
static <T> T	exec(QueryExecutionFactoryQuery qef, org.apache.jena.query.Query query, Function<? super org.apache.jena.query.QueryExecution,T> qeToResult)
static String	fetchDatasetHash(QueryExecutionFactoryQuery qef)	Returns a hash based on sampling the default graph of the given datasource.
static QueryExecutionFactory	of(RDFDataSource dataSource)
static QueryExecutionFactory	of(org.apache.jena.query.Dataset dataset)	Create a QueryExecutionFactory over a Dataset
static QueryExecutionFactory	of(org.apache.jena.rdfconnection.SparqlQueryConnection conn)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

datasetHashQuery

protected static final org.apache.jena.query.Query datasetHashQuery

Constructor Details

QueryExecutionFactories

public QueryExecutionFactories()

Method Details

empty

public static QueryExecutionFactory empty()

adapt

public static QueryExecutionFactory adapt(QueryExecFactory queryExecFactory)

of

public static QueryExecutionFactory of(org.apache.jena.rdfconnection.SparqlQueryConnection conn)

of

public static QueryExecutionFactory of(RDFDataSource dataSource)

of

public static QueryExecutionFactory of(org.apache.jena.query.Dataset dataset)

Create a QueryExecutionFactory over a Dataset

fetchDatasetHash

public static String fetchDatasetHash(QueryExecutionFactoryQuery qef)

Returns a hash based on sampling the default graph of the given datasource.

exec

public static <T> T exec(QueryExecutionFactoryQuery qef,
 org.apache.jena.query.Query query,
 Function<? super org.apache.jena.query.QueryExecution,T> qeToResult)