Package org.aksw.jenax.dataaccess.sparql.polyfill.datasource

Class RdfDataSourceWithLocalLateral

java.lang.Object

org.aksw.jenax.dataaccess.sparql.datasource.RDFDataSourceWrapperBase<RDFDataSource>

org.aksw.jenax.dataaccess.sparql.polyfill.datasource.RdfDataSourceWithLocalLateral

All Implemented Interfaces:

RDFDataSource, RDFDataSourceWrapper<RDFDataSource>

public class RdfDataSourceWithLocalLateral
extends RDFDataSourceWrapperBase<RDFDataSource>

A rewrite that attempts to inject cache operations around group by computations. SERVICE <cache:> { SERVICE <env:REMOTE> { GROUP-BY } }

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	RdfDataSourceWithLocalLateral.ElementTransformLateralToBulk
class	RdfDataSourceWithLocalLateral.ExprTransformApplyElementTransform	A copying transform that applies an ElementTransform syntax pattern of E_Exist and E_NoExists
static class	RdfDataSourceWithLocalLateral.Factory	Factory class
static class	RdfDataSourceWithLocalLateral.OpRewriteInjectRemoteOps	Rewriter that injects caching operations after group by operations (Op, true) means that op contains some rewrite that references remote
static final record	RdfDataSourceWithLocalLateral.PolyfillLateralConfig
static class	RdfDataSourceWithLocalLateral.TransformLateralToBulk

Field Summary

Fields

Modifier and Type	Field	Description
protected RdfDataSourceWithLocalLateral.PolyfillLateralConfig	config
protected org.apache.jena.query.Dataset	proxyDataset	Requests go to this dataset which is configured to delegate SERVICE >env://REMOTE> requests to the delegate data source
static final String	REMOTE_IRI
static final org.apache.jena.graph.Node	REMOTE_NODE

Fields inherited from class org.aksw.jenax.dataaccess.sparql.datasource.RDFDataSourceWrapperBase

delegate

Constructor Summary

Constructors

Constructor	Description
RdfDataSourceWithLocalLateral(RDFDataSource delegate, RdfDataSourceWithLocalLateral.PolyfillLateralConfig config)

Method Summary

Modifier and Type	Method	Description
static org.apache.jena.query.Dataset	createProxyDataset(RDFDataSource delegate)
static org.apache.jena.graph.Node	createServiceIri(int bulkSize, int concurrentSlots)
org.apache.jena.rdfconnection.RDFConnection	getConnection()	By default, use the delegate's connection.
static void	main(String[] args)
static void	mainActual(String[] args)
static void	mainX(String[] args)
protected org.aksw.jenax.stmt.core.SparqlStmt	rewriteStatement(org.aksw.jenax.stmt.core.SparqlStmt stmt)
static RdfDataSourceWithLocalLateral	wrap(RDFDataSource delegate)
static RdfDataSourceWithLocalLateral	wrap(RDFDataSource delegate, RdfDataSourceWithLocalLateral.PolyfillLateralConfig config)
static org.apache.jena.sparql.algebra.Op	wrapWithRemote(org.apache.jena.sparql.algebra.Op op)

Methods inherited from class org.aksw.jenax.dataaccess.sparql.datasource.RDFDataSourceWrapperBase

getDelegate

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.aksw.jenax.dataaccess.sparql.datasource.RDFDataSource

asLinkSource, asQef, getDataset, newQuery, newUpdate, query, query, update, update, update

Field Details

REMOTE_IRI

public static final String REMOTE_IRI

See Also:

• Constant Field Values

REMOTE_NODE

public static final org.apache.jena.graph.Node REMOTE_NODE

proxyDataset

protected org.apache.jena.query.Dataset proxyDataset

Requests go to this dataset which is configured to delegate SERVICE >env://REMOTE> requests to the delegate data source

config

protected RdfDataSourceWithLocalLateral.PolyfillLateralConfig config

Constructor Details

RdfDataSourceWithLocalLateral

public RdfDataSourceWithLocalLateral(RDFDataSource delegate,
 RdfDataSourceWithLocalLateral.PolyfillLateralConfig config)

Method Details

createServiceIri

public static org.apache.jena.graph.Node createServiceIri(int bulkSize,
 int concurrentSlots)

main

public static void main(String[] args)

mainX

public static void mainX(String[] args)

mainActual

public static void mainActual(String[] args)

wrap

public static RdfDataSourceWithLocalLateral wrap(RDFDataSource delegate)

wrap

public static RdfDataSourceWithLocalLateral wrap(RDFDataSource delegate,
 RdfDataSourceWithLocalLateral.PolyfillLateralConfig config)

createProxyDataset

public static org.apache.jena.query.Dataset createProxyDataset(RDFDataSource delegate)

rewriteStatement

protected org.aksw.jenax.stmt.core.SparqlStmt rewriteStatement(org.aksw.jenax.stmt.core.SparqlStmt stmt)

getConnection

public org.apache.jena.rdfconnection.RDFConnection getConnection()

Description copied from interface: RDFDataSourceWrapper

By default, use the delegate's connection.

wrapWithRemote

public static org.apache.jena.sparql.algebra.Op wrapWithRemote(org.apache.jena.sparql.algebra.Op op)