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c

com.spotify.scio.cassandra

CassandraSCollection

implicit class CassandraSCollection[T] extends Serializable

Enhanced version of SCollection with Cassandra methods.

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Instance Constructors

  1. new CassandraSCollection(self: SCollection[T])

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. def saveAsCassandra(opts: CassandraOptions, parallelism: Int = 0)(f: (T) ⇒ Seq[Any]): Future[Tap[T]]

    Save this SCollection as a Cassandra table.

    Save this SCollection as a Cassandra table.

    Cassandra org.apache.cassandra.hadoop.cql3.CqlBulkRecordWriter is used to perform bulk writes for better throughput. The SCollection is grouped by the table partition key before written to the cluster. Therefore writes only occur at the end of each window in streaming mode. The bulk writer writes to all nodes in a cluster so remote nodes in a multi-datacenter cluster may become a bottleneck.

    opts

    Cassandra options

    parallelism

    number of concurrent bulk writers, default to number of Cassandra nodes

    f

    function to convert input data to values for the CQL statement

  16. val self: SCollection[T]
  17. final def synchronized[T0](arg0: ⇒ T0): T0
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  18. def toString(): String
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  19. final def wait(): Unit
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  20. final def wait(arg0: Long, arg1: Int): Unit
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  21. final def wait(arg0: Long): Unit
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