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

Class RdfDataSourceWithSimpleCache

java.lang.Object

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

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

All Implemented Interfaces:

RDFDataSource, RDFDataSourceWrapper<RDFDataSource>

public class RdfDataSourceWithSimpleCache
extends RDFDataSourceWrapperBase<RDFDataSource>

RdfDataSource wrapper that uses a simple (= non-streaming) cache both successful and failed executions. The cache keys are of type Entry('queryForm', 'queryObjectOrString'). The cache values are either Exception, Table, List or List. Cancelling a query execution while it is being cached caches the encountered cancellation exception.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	RdfDataSourceWithSimpleCache.QueryExecBuilderWithSimpleCache
static class	RdfDataSourceWithSimpleCache.QueryExecWithSimpleCache

Field Summary

Fields

Modifier and Type	Field	Description
protected com.github.benmanes.caffeine.cache.Cache<Object,Object>	cache

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

delegate

Constructor Summary

Constructors

Constructor	Description
RdfDataSourceWithSimpleCache(RDFDataSource delegate, com.github.benmanes.caffeine.cache.Cache<Object,Object> cache)

Method Summary

Modifier and Type	Method	Description
com.github.benmanes.caffeine.cache.Cache<Object,Object>	getCache()
org.apache.jena.rdfconnection.RDFConnection	getConnection()	By default, use the delegate's connection.

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

cache

protected com.github.benmanes.caffeine.cache.Cache<Object,Object> cache

Constructor Details

RdfDataSourceWithSimpleCache

public RdfDataSourceWithSimpleCache(RDFDataSource delegate,
 com.github.benmanes.caffeine.cache.Cache<Object,Object> cache)

Method Details

getCache

public com.github.benmanes.caffeine.cache.Cache<Object,Object> getCache()

getConnection

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

Description copied from interface: RDFDataSourceWrapper

By default, use the delegate's connection.