Package org.aksw.jena_sparql_api.cache.advanced

Class RDFLinkSourceWithRangeCache

java.lang.Object
org.aksw.jenax.dataaccess.sparql.linksource.RDFLinkSourceWrapperBase<org.aksw.jenax.dataaccess.sparql.linksource.RDFLinkSource>
org.aksw.jena_sparql_api.cache.advanced.RDFLinkSourceWithRangeCache
All Implemented Interfaces:
org.aksw.jenax.dataaccess.sparql.linksource.RDFLinkSource, org.aksw.jenax.dataaccess.sparql.linksource.RDFLinkSourceWrapper<org.aksw.jenax.dataaccess.sparql.linksource.RDFLinkSource>
public class RDFLinkSourceWithRangeCache extends org.aksw.jenax.dataaccess.sparql.linksource.RDFLinkSourceWrapperBase<org.aksw.jenax.dataaccess.sparql.linksource.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(org.aksw.jenax.dataaccess.sparql.linksource.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(org.aksw.jenax.dataaccess.sparql.linksource.RDFLinkSource linkSource, Path cacheFolder, long maxRequestSize)
     
    static RDFLinkSourceWithRangeCache
    create(org.aksw.jenax.dataaccess.sparql.linksource.RDFLinkSource linkSource, Path cacheFolder, long maxRequestSize, com.google.common.hash.HashCode datasetHash)
     
    static RDFLinkSourceWithRangeCache
    create(org.aksw.jenax.dataaccess.sparql.linksource.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(org.aksw.jenax.dataaccess.sparql.builder.exec.query.QueryExecBuilderCustomBase<?> builder)
     
    org.apache.jena.sparql.exec.UpdateExec
    createUpdateExec(org.apache.jena.rdflink.LinkSparqlUpdate baseLink, org.aksw.jenax.dataaccess.sparql.builder.exec.update.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, getDatasetGraph, newQuery, newUpdate, query, query, update, update, update

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

    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(org.aksw.jenax.dataaccess.sparql.linksource.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(org.aksw.jenax.dataaccess.sparql.builder.exec.query.QueryExecBuilderCustomBase<?> builder)

    • createUpdateExec

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

    • create

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

    • create

      public static RDFLinkSourceWithRangeCache create(org.aksw.jenax.dataaccess.sparql.linksource.RDFLinkSource linkSource, Path cacheFolder, long maxRequestSize)

    • create

      public static RDFLinkSourceWithRangeCache create(org.aksw.jenax.dataaccess.sparql.linksource.RDFLinkSource linkSource, Path cacheFolder, long maxRequestSize, com.google.common.hash.HashCode datasetHash)

    • create

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