Trait

com.datastax.spark.connector.rdd.reader

RowReader

Related Doc: package reader

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trait RowReader[T] extends Serializable

Transforms a Cassandra Java driver Row into high-level row representation, e.g. a tuple or a user-defined case class object. The target type T must be serializable.

Linear Supertypes
Serializable, Serializable, AnyRef, Any
Known Subclasses
CassandraSQLRowReader, ClassBasedRowReader, FunctionBasedRowReader, FunctionBasedRowReader1, FunctionBasedRowReader10, FunctionBasedRowReader11, FunctionBasedRowReader12, FunctionBasedRowReader2, FunctionBasedRowReader3, FunctionBasedRowReader4, FunctionBasedRowReader5, FunctionBasedRowReader6, FunctionBasedRowReader7, FunctionBasedRowReader8, FunctionBasedRowReader9, GenericRowReader$, UnsafeRowReader, ValueRowReader
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Abstract Value Members

  1. abstract def neededColumns: Option[Seq[ColumnRef]]

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    List of columns this RowReader is going to read.

    List of columns this RowReader is going to read. Useful to avoid fetching the columns that are not needed.

  2. abstract def read(row: Row, rowMetaData: CassandraRowMetadata): T

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    Reads column values from low-level Row and turns them into higher level representation.

    Reads column values from low-level Row and turns them into higher level representation.

    row

    row fetched from Cassandra

    rowMetaData

    column names and codec available in the row

Concrete 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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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )

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

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  16. def toString(): String

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  17. final def wait(): Unit

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

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

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Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

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