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c

net.sansa_stack.query.spark.query

OntopSPARQLExecutor

class OntopSPARQLExecutor extends QueryExecutor with Serializable

An Ontop backed SPARQL executor working on the given RDF partitions.

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Serializable, Serializable, QueryExecutor, AnyRef, Any
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  1. OntopSPARQLExecutor
  2. Serializable
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  4. QueryExecutor
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Instance Constructors

  1. new OntopSPARQLExecutor(triples: RDD[Triple])
  2. new OntopSPARQLExecutor(partitions: Map[RdfPartitionComplex, RDD[Row]], ontology: Option[OWLOntology] = None)

    partitions

    the RDF partitions to work on

    ontology

    an optional ontology containing schema information like classes, class hierarchy, etc. which can be used for query optimization as well as OWL QL inference based query rewriting

Value Members

  1. final def !=(arg0: Any): Boolean
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  2. final def ##(): Int
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  3. final def ==(arg0: Any): Boolean
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  4. final def asInstanceOf[T0]: T0
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  5. def clone(): AnyRef
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  6. final def eq(arg0: AnyRef): Boolean
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  7. def equals(arg0: Any): Boolean
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  8. def finalize(): Unit
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  9. final def getClass(): Class[_]
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  10. def hashCode(): Int
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  11. final def isInstanceOf[T0]: Boolean
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  12. final def ne(arg0: AnyRef): Boolean
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  13. final def notify(): Unit
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  14. final def notifyAll(): Unit
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    @native()
  15. val spark: SparkSession
  16. def sparql(sparqlQuery: String): DataFrame

    Default partition - using VP.

    Default partition - using VP.

    sparqlQuery

    a SPARQL query

    Definition Classes
    OntopSPARQLExecutorQueryExecutor
  17. val sparqlEngine: OntopSPARQLEngine
  18. def sparqlRDD(sparqlQuery: String): RDD[Binding]

    Execute a SPARQL query and return an RDD of bindings.

    Execute a SPARQL query and return an RDD of bindings.

    Default partitioning scheme used is VP.

    sparqlQuery

    a SPARQL query

    Definition Classes
    OntopSPARQLExecutorQueryExecutor
  19. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
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  20. def toString(): String
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  21. final def wait(): Unit
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  22. final def wait(arg0: Long, arg1: Int): Unit
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  23. final def wait(arg0: Long): Unit
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Inherited from Serializable

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Inherited from QueryExecutor

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