com.datastax.spark.connector.writer

WritableToCassandra

abstract class WritableToCassandra[T] extends AnyRef

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Instance Constructors

  1. new WritableToCassandra()

Abstract Value Members

  1. abstract def saveToCassandra(keyspaceName: String, tableName: String, columnNames: ColumnSelector, writeConf: WriteConf)(implicit connector: CassandraConnector, rwf: RowWriterFactory[T]): Unit

    Saves the data from RDD to a Cassandra table.

    Saves the data from RDD to a Cassandra table. By default, it saves all properties that have corresponding Cassandra columns.

    Example:

    CREATE KEYSPACE test WITH replication = {'class': 'SimpleStrategy', 'replication_factor': 1 };
    CREATE TABLE test.words(word VARCHAR PRIMARY KEY, count INT, other VARCHAR);
    case class WordCount(word: String, count: Int, other: String)
    val rdd = sc.parallelize(Seq(WordCount("foo", 5, "bar")))

    By default, the underlying RDD class must provide data for all columns:

    rdd.saveToCassandra("test", "words")

    By default, writes are performed at ConsistencyLevel.ONE in order to leverage data-locality and minimize network traffic. This write consistency level is controlled by the following property:

    • spark.cassandra.output.consistency.level: consistency level for RDD writes, string matching the ConsistencyLevel enum name.
    keyspaceName

    the name of the Keyspace to use

    tableName

    the name of the Table to use

    columnNames

    The list of column names to save data to. Uses only the unique column names, and you must select at least all primary key columns. All other fields are discarded. Non-selected property/column names are left unchanged.

    writeConf

    additional configuration object allowing to set consistency level, batch size, etc.

  2. abstract def sparkContext: SparkContext

Concrete Value Members

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

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

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  3. final def ##(): Int

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  4. def +(other: String): String

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

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

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

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  8. final def asInstanceOf[T0]: T0

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  9. def clone(): AnyRef

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    @throws( ... )
  10. def ensuring(cond: (WritableToCassandra[T]) ⇒ Boolean, msg: ⇒ Any): WritableToCassandra[T]

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

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

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

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

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  15. def equals(arg0: Any): Boolean

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  16. def finalize(): Unit

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  17. def formatted(fmtstr: String): String

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    This member is added by an implicit conversion from WritableToCassandra[T] to StringFormat performed by method any2stringfmt in scala.Predef.
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    @inline()
  18. final def getClass(): Class[_]

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  19. def hashCode(): Int

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

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  22. final def notify(): Unit

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  23. final def notifyAll(): Unit

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

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  25. def toString(): String

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  26. final def wait(): Unit

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  27. final def wait(arg0: Long, arg1: Int): Unit

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  28. final def wait(arg0: Long): Unit

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  29. def [B](y: B): (WritableToCassandra[T], B)

    Implicit information
    This member is added by an implicit conversion from WritableToCassandra[T] to ArrowAssoc[WritableToCassandra[T]] 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 WritableToCassandra[T] to StringAdd performed by method any2stringadd in scala.Predef.
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    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:
    (writableToCassandra: StringAdd).self
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  2. val self: Any

    Implicit information
    This member is added by an implicit conversion from WritableToCassandra[T] 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:
    (writableToCassandra: StringFormat).self
    Definition Classes
    StringFormat

Deprecated Value Members

  1. def x: WritableToCassandra[T]

    Implicit information
    This member is added by an implicit conversion from WritableToCassandra[T] to ArrowAssoc[WritableToCassandra[T]] 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:
    (writableToCassandra: ArrowAssoc[WritableToCassandra[T]]).x
    Definition Classes
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    @deprecated
    Deprecated

    (Since version 2.10.0) Use leftOfArrow instead

  2. def x: WritableToCassandra[T]

    Implicit information
    This member is added by an implicit conversion from WritableToCassandra[T] to Ensuring[WritableToCassandra[T]] 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:
    (writableToCassandra: Ensuring[WritableToCassandra[T]]).x
    Definition Classes
    Ensuring
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use resultOfEnsuring instead

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from WritableToCassandra[T] to StringAdd

Inherited by implicit conversion any2stringfmt from WritableToCassandra[T] to StringFormat

Inherited by implicit conversion any2ArrowAssoc from WritableToCassandra[T] to ArrowAssoc[WritableToCassandra[T]]

Inherited by implicit conversion any2Ensuring from WritableToCassandra[T] to Ensuring[WritableToCassandra[T]]

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