Package net.sansa_stack.spark.rdd.op.rdf

Class JavaRddOfQuadsOps

java.lang.Object
net.sansa_stack.spark.rdd.op.rdf.JavaRddOfQuadsOps
public class JavaRddOfQuadsOps extends Object

  • Constructor Summary

    Constructors
    Constructor
    Description
    JavaRddOfQuadsOps()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static org.apache.spark.api.java.JavaPairRDD<String,org.apache.jena.rdf.model.Model>
    groupByNamedGraph(org.apache.spark.api.java.JavaRDD<org.apache.jena.sparql.core.Quad> rdd)
    group quads by graph IRI into a pairs (graphIri, Model)
    static JavaRddFunction<org.apache.jena.sparql.core.Quad,org.apache.jena.sparql.core.Quad>
    mapIntoGraph(org.apache.jena.graph.Node graphNode)
     
    static org.apache.spark.api.java.JavaRDD<org.apache.jena.query.Dataset>
    mapToDataset(org.apache.spark.api.java.JavaRDD<org.apache.jena.sparql.core.Quad> rdd)
     
    static JavaRddFunction<org.apache.jena.sparql.core.Quad,org.apache.jena.graph.Triple>
    mapToTriples(org.apache.jena.graph.Node graphNode)
     
    static org.apache.spark.api.java.JavaRDD<org.apache.jena.sparql.core.Quad>
    postProcess(org.apache.spark.api.java.JavaRDD<org.apache.jena.sparql.core.Quad> rdd, boolean sort, boolean ascending, boolean distinct, int numPartitions)
    Post process RDF data - sort, distinct, repartition Sort quads by their string representation (relies on NodeFmtLib.str(org.apache.jena.graph.Triple))

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • JavaRddOfQuadsOps

      public JavaRddOfQuadsOps()

  • Method Details

    • groupByNamedGraph

      public static org.apache.spark.api.java.JavaPairRDD<String,org.apache.jena.rdf.model.Model> groupByNamedGraph(org.apache.spark.api.java.JavaRDD<org.apache.jena.sparql.core.Quad> rdd)
      group quads by graph IRI into a pairs (graphIri, Model)

    • mapToDataset

      public static org.apache.spark.api.java.JavaRDD<org.apache.jena.query.Dataset> mapToDataset(org.apache.spark.api.java.JavaRDD<org.apache.jena.sparql.core.Quad> rdd)

    • mapIntoGraph

      public static JavaRddFunction<org.apache.jena.sparql.core.Quad,org.apache.jena.sparql.core.Quad> mapIntoGraph(org.apache.jena.graph.Node graphNode)

    • mapToTriples

      public static JavaRddFunction<org.apache.jena.sparql.core.Quad,org.apache.jena.graph.Triple> mapToTriples(org.apache.jena.graph.Node graphNode)

    • postProcess

      public static org.apache.spark.api.java.JavaRDD<org.apache.jena.sparql.core.Quad> postProcess(org.apache.spark.api.java.JavaRDD<org.apache.jena.sparql.core.Quad> rdd, boolean sort, boolean ascending, boolean distinct, int numPartitions)
      Post process RDF data - sort, distinct, repartition Sort quads by their string representation (relies on NodeFmtLib.str(org.apache.jena.graph.Triple))