Packages

•  package root

  Definition Classes

  root

•  package com

  Definition Classes

  root

•  package datastax

  Definition Classes

  com

•  package spark

  Definition Classes

  datastax

•  package connector

  The root package of Cassandra connector for Apache Spark.

  The root package of Cassandra connector for Apache Spark. Offers handy implicit conversions that add Cassandra-specific methods to SparkContext and RDD.

  Call cassandraTable method on the SparkContext object to create a CassandraRDD exposing Cassandra tables as Spark RDDs.

  Call RDDFunctions saveToCassandra function on any RDD to save distributed collection to a Cassandra table.

  Example:

  CREATE KEYSPACE test WITH replication = {'class': 'SimpleStrategy', 'replication_factor': 1 };
  CREATE TABLE test.words (word text PRIMARY KEY, count int);
  INSERT INTO test.words(word, count) VALUES ("and", 50);

  import com.datastax.spark.connector._
  
  val sparkMasterHost = "127.0.0.1"
  val cassandraHost = "127.0.0.1"
  val keyspace = "test"
  val table = "words"
  
  // Tell Spark the address of one Cassandra node:
  val conf = new SparkConf(true).set("spark.cassandra.connection.host", cassandraHost)
  
  // Connect to the Spark cluster:
  val sc = new SparkContext("spark://" + sparkMasterHost + ":7077", "example", conf)
  
  // Read the table and print its contents:
  val rdd = sc.cassandraTable(keyspace, table)
  rdd.toArray().foreach(println)
  
  // Write two rows to the table:
  val col = sc.parallelize(Seq(("of", 1200), ("the", "863")))
  col.saveToCassandra(keyspace, table)
  
  sc.stop()

  Definition Classes

  spark

•  package util

  Useful stuff that didn't fit elsewhere.

  Useful stuff that didn't fit elsewhere.

  Definition Classes

  connector

•  object ConfigCheck

  Helper class to throw exceptions if there are environment variables in the spark.cassandra namespace which don't map to Spark Cassandra Connector known properties.

  Helper class to throw exceptions if there are environment variables in the spark.cassandra namespace which don't map to Spark Cassandra Connector known properties.

  Definition Classes

  util

• ConnectorConfigurationException

com.datastax.spark.connector.util.ConfigCheck

ConnectorConfigurationException 