Package org.aksw.jenax.dataaccess.sparql.factory.dataset.connection

Class DatasetRDFConnectionFactoryBuilder

java.lang.Object

org.aksw.jenax.dataaccess.sparql.factory.dataset.connection.DatasetRDFConnectionFactoryBuilder

public class DatasetRDFConnectionFactoryBuilder
extends Object

Similar to RDFConnection.connect(Dataset) but with additional configuration options to set a Context and the update / query engines. The result of the builder is of type DatasetRDFConnectionFactory which is a function from Dataset to RDFConnection. This builder is motivated by the quad-engine module which requires configuration of its own query/update engine.

Author:

Claus Stadler

Field Summary

Fields

Modifier and Type	Field	Description
protected org.apache.jena.sparql.util.Context	context	Use ContextAccumulator ?
protected QueryEngineFactoryProvider	queryEngineFactoryProvider
protected UpdateEngineFactoryProvider	updateEngineFactoryProvider

Constructor Summary

Constructors

Constructor	Description
DatasetRDFConnectionFactoryBuilder()

Method Summary

Modifier and Type	Method	Description
DatasetRDFConnectionFactory	build()
static org.apache.jena.rdfconnection.RDFConnection	connect(org.apache.jena.query.Dataset dataset)	This approach is a workaround for a bug with RDFConnection.connect(Dataset) for at least jena 4.3.x: Due to the bug an internal QueryExecutionCompat is created whose .get() method returns a null QueryExec instance.
static DatasetRDFConnectionFactoryBuilder	create()
static DatasetRDFConnectionFactoryBuilder	createWithDefaults()
DatasetRDFConnectionFactoryBuilder	setContext(org.apache.jena.sparql.util.Context context)
DatasetRDFConnectionFactoryBuilder	setDefaultQueryEngineFactoryProvider()
DatasetRDFConnectionFactoryBuilder	setDefaultUpdateEngineFactoryProvider()
DatasetRDFConnectionFactoryBuilder	setQueryEngineFactoryProvider(QueryEngineFactoryProvider queryEngineFactoryProvider)
DatasetRDFConnectionFactoryBuilder	setQueryEngineFactoryProvider(org.apache.jena.sparql.engine.QueryEngineFactory queryEngineFactory)	Set the provider to always provide the given query engine factory
DatasetRDFConnectionFactoryBuilder	setUpdateEngineFactory(org.apache.jena.sparql.modify.UpdateEngineFactory updateEngineFactory)	Set the provider to always provide the given query engine factory
DatasetRDFConnectionFactoryBuilder	setUpdateEngineFactoryCore(UpdateEngineFactoryCore updateEngineFactoryCore)
DatasetRDFConnectionFactoryBuilder	setUpdateEngineFactoryProvider(UpdateEngineFactoryProvider updateEngineFactoryProvider)

Methods inherited from class java.lang.Object

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

Field Details

queryEngineFactoryProvider

protected QueryEngineFactoryProvider queryEngineFactoryProvider

updateEngineFactoryProvider

protected UpdateEngineFactoryProvider updateEngineFactoryProvider

context

protected org.apache.jena.sparql.util.Context context

Use ContextAccumulator ?

Constructor Details

DatasetRDFConnectionFactoryBuilder

public DatasetRDFConnectionFactoryBuilder()

Method Details

connect

public static org.apache.jena.rdfconnection.RDFConnection connect(org.apache.jena.query.Dataset dataset)

This approach is a workaround for a bug with RDFConnection.connect(Dataset) for at least jena 4.3.x: Due to the bug an internal QueryExecutionCompat is created whose .get() method returns a null QueryExec instance. The workaround works because the resulting connection uses a different kind of wrapping.

create

public static DatasetRDFConnectionFactoryBuilder create()

createWithDefaults

public static DatasetRDFConnectionFactoryBuilder createWithDefaults()

setQueryEngineFactoryProvider

public DatasetRDFConnectionFactoryBuilder setQueryEngineFactoryProvider(QueryEngineFactoryProvider queryEngineFactoryProvider)

setQueryEngineFactoryProvider

public DatasetRDFConnectionFactoryBuilder setQueryEngineFactoryProvider(org.apache.jena.sparql.engine.QueryEngineFactory queryEngineFactory)

Set the provider to always provide the given query engine factory

setDefaultQueryEngineFactoryProvider

public DatasetRDFConnectionFactoryBuilder setDefaultQueryEngineFactoryProvider()

setUpdateEngineFactoryCore

public DatasetRDFConnectionFactoryBuilder setUpdateEngineFactoryCore(UpdateEngineFactoryCore updateEngineFactoryCore)

setUpdateEngineFactoryProvider

public DatasetRDFConnectionFactoryBuilder setUpdateEngineFactoryProvider(UpdateEngineFactoryProvider updateEngineFactoryProvider)

setUpdateEngineFactory

public DatasetRDFConnectionFactoryBuilder setUpdateEngineFactory(org.apache.jena.sparql.modify.UpdateEngineFactory updateEngineFactory)

Set the provider to always provide the given query engine factory

setDefaultUpdateEngineFactoryProvider

public DatasetRDFConnectionFactoryBuilder setDefaultUpdateEngineFactoryProvider()

setContext

public DatasetRDFConnectionFactoryBuilder setContext(org.apache.jena.sparql.util.Context context)

build

public DatasetRDFConnectionFactory build()