Package org.aksw.jena_sparql_api.cache.advanced

Class RDFLinkSourceWithRangeCache

java.lang.Object

org.aksw.jenax.dataaccess.sparql.linksource.RDFLinkSourceWrapperBase<RDFLinkSource>

org.aksw.jena_sparql_api.cache.advanced.RDFLinkSourceWithRangeCache

All Implemented Interfaces:

RDFLinkSource, RDFLinkSourceWrapper<RDFLinkSource>

public class RDFLinkSourceWithRangeCache
extends RDFLinkSourceWrapperBase<RDFLinkSource>

This class wraps a data source with caching. The wrapping includes an additional MRSW lock (multiple reads or single writer) - so only a single write transaction is allowed at any time.

Field Summary

Fields

Modifier and Type	Field	Description
protected org.aksw.commons.io.buffer.array.ArrayOps<org.apache.jena.sparql.engine.binding.Binding[]>	arrayOps
protected org.aksw.commons.io.cache.AdvancedRangeCacheConfig	cacheConfig
protected com.google.common.hash.HashCode	datasetHash
protected org.aksw.commons.store.object.key.api.ObjectStore	objectStore
protected com.google.common.cache.Cache<org.aksw.commons.path.core.Path<String>,org.aksw.commons.rx.lookup.ListPaginator<org.apache.jena.sparql.engine.binding.Binding>>	queryToCache
protected static com.google.common.hash.HashFunction	stmtHashFn	Hash functions for update statements
protected org.apache.jena.sparql.core.Transactional	transactional	This lock takes precedence over any locking mechanism of the delegate data source

Fields inherited from class org.aksw.jenax.dataaccess.sparql.linksource.RDFLinkSourceWrapperBase

delegate

Constructor Summary

Constructors

Constructor	Description
RDFLinkSourceWithRangeCache(RDFLinkSource delegate, org.aksw.commons.store.object.key.api.ObjectStore objectStore, com.google.common.hash.HashCode datasetHash, int maxCachedQueries, org.aksw.commons.io.cache.AdvancedRangeCacheConfig cacheConfig)

Method Summary

Modifier and Type	Method	Description
static RDFLinkSourceWithRangeCache	create(RDFLinkSourceWithRangeCache dataSource, Path cacheDir, long maxRequestSize)
static RDFLinkSourceWithRangeCache	create(RDFLinkSource linkSource, Path cacheFolder, long maxRequestSize)
static RDFLinkSourceWithRangeCache	create(RDFLinkSource linkSource, Path cacheFolder, long maxRequestSize, com.google.common.hash.HashCode datasetHash)
static RDFLinkSourceWithRangeCache	create(RDFLinkSource linkSource, Path cacheFolder, com.google.common.hash.HashCode datasetHash, int maxCachedQueries, org.aksw.commons.io.cache.AdvancedRangeCacheConfig cacheConfig)
org.apache.jena.sparql.exec.QueryExec	createQueryExec(QueryExecBuilderCustomBase<?> builder)
org.apache.jena.sparql.exec.UpdateExec	createUpdateExec(org.apache.jena.rdflink.LinkSparqlUpdate baseLink, UpdateExecBuilderCustomBase<?> builder)
org.apache.jena.rdflink.RDFLink	newLink()

Methods inherited from class org.aksw.jenax.dataaccess.sparql.linksource.RDFLinkSourceWrapperBase

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.linksource.RDFLinkSource

asDataSource, newQuery, newUpdate, query, query, update, update, update

Methods inherited from interface org.aksw.jenax.dataaccess.sparql.linksource.RDFLinkSourceWrapper

getDatasetGraph, newLinkBuilder

Field Details

datasetHash

protected com.google.common.hash.HashCode datasetHash

stmtHashFn

protected static com.google.common.hash.HashFunction stmtHashFn

Hash functions for update statements

transactional

protected org.apache.jena.sparql.core.Transactional transactional

This lock takes precedence over any locking mechanism of the delegate data source

objectStore

protected org.aksw.commons.store.object.key.api.ObjectStore objectStore

cacheConfig

protected org.aksw.commons.io.cache.AdvancedRangeCacheConfig cacheConfig

arrayOps

protected org.aksw.commons.io.buffer.array.ArrayOps<org.apache.jena.sparql.engine.binding.Binding[]> arrayOps

queryToCache

protected com.google.common.cache.Cache<org.aksw.commons.path.core.Path<String>,org.aksw.commons.rx.lookup.ListPaginator<org.apache.jena.sparql.engine.binding.Binding>> queryToCache

Constructor Details

RDFLinkSourceWithRangeCache

public RDFLinkSourceWithRangeCache(RDFLinkSource delegate,
 org.aksw.commons.store.object.key.api.ObjectStore objectStore,
 com.google.common.hash.HashCode datasetHash,
 int maxCachedQueries,
 org.aksw.commons.io.cache.AdvancedRangeCacheConfig cacheConfig)

Method Details

newLink

public org.apache.jena.rdflink.RDFLink newLink()

createQueryExec

public org.apache.jena.sparql.exec.QueryExec createQueryExec(QueryExecBuilderCustomBase<?> builder)

createUpdateExec

public org.apache.jena.sparql.exec.UpdateExec createUpdateExec(org.apache.jena.rdflink.LinkSparqlUpdate baseLink,
 UpdateExecBuilderCustomBase<?> builder)

create

public static RDFLinkSourceWithRangeCache create(RDFLinkSource linkSource,
 Path cacheFolder,
 com.google.common.hash.HashCode datasetHash,
 int maxCachedQueries,
 org.aksw.commons.io.cache.AdvancedRangeCacheConfig cacheConfig)

create

public static RDFLinkSourceWithRangeCache create(RDFLinkSource linkSource,
 Path cacheFolder,
 long maxRequestSize)

create

public static RDFLinkSourceWithRangeCache create(RDFLinkSource linkSource,
 Path cacheFolder,
 long maxRequestSize,
 com.google.common.hash.HashCode datasetHash)

create

public static RDFLinkSourceWithRangeCache create(RDFLinkSourceWithRangeCache dataSource,
 Path cacheDir,
 long maxRequestSize)