com.datastax.spark.connector

SparkContextFunctions

class SparkContextFunctions extends Serializable

Provides Cassandra-specific methods on SparkContext

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  1. SparkContextFunctions
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  1. by any2stringadd
  2. by any2stringfmt
  3. by any2ArrowAssoc
  4. by any2Ensuring
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Instance Constructors

  1. new SparkContextFunctions(sc: SparkContext)

Value Members

  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  2. final def !=(arg0: Any): Boolean

    Definition Classes
    Any
  3. final def ##(): Int

    Definition Classes
    AnyRef → Any
  4. def +(other: String): String

    Implicit information
    This member is added by an implicit conversion from SparkContextFunctions to StringAdd performed by method any2stringadd in scala.Predef.
    Definition Classes
    StringAdd
  5. def ->[B](y: B): (SparkContextFunctions, B)

    Implicit information
    This member is added by an implicit conversion from SparkContextFunctions to ArrowAssoc[SparkContextFunctions] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  6. final def ==(arg0: AnyRef): Boolean

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  7. final def ==(arg0: Any): Boolean

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    Any
  8. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  9. def cassandraTable[T](keyspace: String, table: String)(implicit connector: CassandraConnector = CassandraConnector(sc.getConf), readConf: ReadConf = ReadConf.fromSparkConf(sc.getConf), ct: ClassTag[T], rrf: RowReaderFactory[T], ev: ValidRDDType[T]): CassandraTableScanRDD[T]

    Returns a view of a Cassandra table as CassandraRDD.

    Returns a view of a Cassandra table as CassandraRDD. This method is made available on SparkContext by importing com.datastax.spark.connector._

    Depending on the type parameter passed to cassandraTable, every row is converted to one of the following:

    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 ('foo', 20);
    INSERT INTO test.words (word, count) VALUES ('bar', 20);
    ...
    // Obtaining RDD of CassandraRow objects:
    val rdd1 = sc.cassandraTable("test", "words")
    rdd1.first.getString("word")  // foo
    rdd1.first.getInt("count")    // 20
    
    // Obtaining RDD of tuples:
    val rdd2 = sc.cassandraTable[(String, Int)]("test", "words").select("word", "count")
    rdd2.first._1  // foo
    rdd2.first._2  // 20
    
    // Obtaining RDD of user defined objects:
    case class WordCount(word: String, count: Int)
    val rdd3 = sc.cassandraTable[WordCount]("test", "words")
    rdd3.first.word  // foo
    rdd3.first.count // 20
  10. def clone(): AnyRef

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    protected[java.lang]
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    @throws( ... )
  11. def emptyCassandraTable[T](keyspace: String, table: String)(implicit connector: CassandraConnector = CassandraConnector(sc.getConf), readConf: ReadConf = ReadConf.fromSparkConf(sc.getConf), ct: ClassTag[T], rrf: RowReaderFactory[T], ev: ValidRDDType[T]): EmptyCassandraRDD[T]

    Produces the empty CassandraRDD which does not perform any validation and it does not even try to return any rows.

  12. def ensuring(cond: (SparkContextFunctions) ⇒ Boolean, msg: ⇒ Any): SparkContextFunctions

    Implicit information
    This member is added by an implicit conversion from SparkContextFunctions to Ensuring[SparkContextFunctions] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  13. def ensuring(cond: (SparkContextFunctions) ⇒ Boolean): SparkContextFunctions

    Implicit information
    This member is added by an implicit conversion from SparkContextFunctions to Ensuring[SparkContextFunctions] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  14. def ensuring(cond: Boolean, msg: ⇒ Any): SparkContextFunctions

    Implicit information
    This member is added by an implicit conversion from SparkContextFunctions to Ensuring[SparkContextFunctions] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  15. def ensuring(cond: Boolean): SparkContextFunctions

    Implicit information
    This member is added by an implicit conversion from SparkContextFunctions to Ensuring[SparkContextFunctions] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  16. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  17. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  18. def finalize(): Unit

    Attributes
    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )
  19. def formatted(fmtstr: String): String

    Implicit information
    This member is added by an implicit conversion from SparkContextFunctions to StringFormat performed by method any2stringfmt in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  20. final def getClass(): Class[_]

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    AnyRef → Any
  21. def hashCode(): Int

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  22. final def isInstanceOf[T0]: Boolean

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  23. final def ne(arg0: AnyRef): Boolean

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  24. final def notify(): Unit

    Definition Classes
    AnyRef
  25. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  26. val sc: SparkContext

  27. final def synchronized[T0](arg0: ⇒ T0): T0

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  28. def toString(): String

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    AnyRef → Any
  29. final def wait(): Unit

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    @throws( ... )
  30. final def wait(arg0: Long, arg1: Int): Unit

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    @throws( ... )
  31. final def wait(arg0: Long): Unit

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  32. def [B](y: B): (SparkContextFunctions, B)

    Implicit information
    This member is added by an implicit conversion from SparkContextFunctions to ArrowAssoc[SparkContextFunctions] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Shadowed Implicit Value Members

  1. val self: Any

    Implicit information
    This member is added by an implicit conversion from SparkContextFunctions to StringAdd performed by method any2stringadd in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (sparkContextFunctions: StringAdd).self
    Definition Classes
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  2. val self: Any

    Implicit information
    This member is added by an implicit conversion from SparkContextFunctions to StringFormat performed by method any2stringfmt in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (sparkContextFunctions: StringFormat).self
    Definition Classes
    StringFormat

Deprecated Value Members

  1. def x: SparkContextFunctions

    Implicit information
    This member is added by an implicit conversion from SparkContextFunctions to ArrowAssoc[SparkContextFunctions] performed by method any2ArrowAssoc in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (sparkContextFunctions: ArrowAssoc[SparkContextFunctions]).x
    Definition Classes
    ArrowAssoc
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use leftOfArrow instead

  2. def x: SparkContextFunctions

    Implicit information
    This member is added by an implicit conversion from SparkContextFunctions to Ensuring[SparkContextFunctions] performed by method any2Ensuring in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (sparkContextFunctions: Ensuring[SparkContextFunctions]).x
    Definition Classes
    Ensuring
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use resultOfEnsuring instead

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from SparkContextFunctions to StringAdd

Inherited by implicit conversion any2stringfmt from SparkContextFunctions to StringFormat

Inherited by implicit conversion any2ArrowAssoc from SparkContextFunctions to ArrowAssoc[SparkContextFunctions]

Inherited by implicit conversion any2Ensuring from SparkContextFunctions to Ensuring[SparkContextFunctions]

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