Class/Object

org.apache.spark.sql.execution.columnar.encoding

ColumnEncoding

Related Docs: object ColumnEncoding | package encoding

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abstract class ColumnEncoding extends AnyRef

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Known Subclasses
BooleanBitSetEncoding, BooleanBitSetEncodingBase, BooleanBitSetEncodingNullable, DictionaryEncoding, DictionaryEncodingBase, DictionaryEncodingNullable, IntDeltaEncoding, IntDeltaEncodingBase, IntDeltaEncodingNullable, LongDeltaEncoding, LongDeltaEncodingBase, LongDeltaEncodingNullable, NotNullColumn, NullableColumn, ResultSetEncodingAdapter, RunLengthEncoding, RunLengthEncodingBase, RunLengthEncodingNullable, Uncompressed, UncompressedBase, UncompressedNullable, UnsafeRowEncodingAdapter
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Instance Constructors

  1. new ColumnEncoding()

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Abstract Value Members

  1. abstract def initializeNulls(columnBytes: AnyRef, field: Attribute): Long

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    Attributes
    protected

  2. abstract def notNull(columnBytes: AnyRef, ordinal: Int): Int

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    Returns 1 to indicate that column value was not-null, 0 to indicate that it was null and -1 to indicate that wasNull() needs to be invoked after the appropriate read method.

    Returns 1 to indicate that column value was not-null, 0 to indicate that it was null and -1 to indicate that wasNull() needs to be invoked after the appropriate read method.

  3. abstract def supports(dataType: DataType): Boolean

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  4. abstract def typeId: Int

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

  9. final def getClass(): Class[_]

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  10. def hashCode(): Int

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  11. def initializeDecoding(columnBytes: AnyRef, field: Attribute): Long

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  12. def initializeEncoding(dataType: DataType, batchSize: Int): AnyRef

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  13. final def isInstanceOf[T0]: Boolean

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

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  15. def nextBinary(columnBytes: AnyRef, cursor: Long): Long

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  16. def nextBoolean(columnBytes: AnyRef, cursor: Long): Long

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  17. def nextByte(columnBytes: AnyRef, cursor: Long): Long

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  18. def nextDecimal(columnBytes: AnyRef, cursor: Long): Long

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  19. def nextDouble(columnBytes: AnyRef, cursor: Long): Long

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  20. def nextFloat(columnBytes: AnyRef, cursor: Long): Long

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  21. def nextInt(columnBytes: AnyRef, cursor: Long): Long

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  22. def nextInterval(columnBytes: AnyRef, cursor: Long): Long

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  23. def nextLong(columnBytes: AnyRef, cursor: Long): Long

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  24. def nextShort(columnBytes: AnyRef, cursor: Long): Long

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  25. def nextUTF8String(columnBytes: AnyRef, cursor: Long): Long

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  26. final def notify(): Unit

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  27. final def notifyAll(): Unit

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  28. def readArray(columnBytes: AnyRef, cursor: Long): UnsafeArrayData

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  29. def readBinary(columnBytes: AnyRef, cursor: Long): Array[Byte]

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  30. def readBoolean(columnBytes: AnyRef, cursor: Long): Boolean

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  31. def readByte(columnBytes: AnyRef, cursor: Long): Byte

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  32. def readDate(columnBytes: AnyRef, cursor: Long): Int

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  33. def readDecimal(columnBytes: AnyRef, precision: Int, scale: Int, cursor: Long): Decimal

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  34. def readDouble(columnBytes: AnyRef, cursor: Long): Double

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  35. def readFloat(columnBytes: AnyRef, cursor: Long): Float

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  36. def readInt(columnBytes: AnyRef, cursor: Long): Int

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  37. def readInterval(columnBytes: AnyRef, cursor: Long): CalendarInterval

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  38. def readLong(columnBytes: AnyRef, cursor: Long): Long

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  39. def readLongDecimal(columnBytes: AnyRef, precision: Int, scale: Int, cursor: Long): Decimal

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  40. def readMap(columnBytes: AnyRef, cursor: Long): UnsafeMapData

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  41. def readShort(columnBytes: AnyRef, cursor: Long): Short

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  42. def readStruct(columnBytes: AnyRef, numFields: Int, cursor: Long): UnsafeRow

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  43. def readTimestamp(columnBytes: AnyRef, cursor: Long): Long

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  44. def readUTF8String(columnBytes: AnyRef, cursor: Long): UTF8String

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

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  46. def toString(): String

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  47. final def wait(): Unit

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

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

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  50. def wasNull(): Boolean

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    Only to be used for implementations (ResultSet adapter) that need to check for null after having invoked the appropriate read method.

    Only to be used for implementations (ResultSet adapter) that need to check for null after having invoked the appropriate read method. The notNull method should return -1 for such implementations.

  51. def writeArray(columnBytes: AnyRef, value: UnsafeArrayData): Unit

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  52. def writeBinary(columnBytes: AnyRef, value: Array[Byte]): Unit

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  53. def writeBoolean(columnBytes: AnyRef, value: Boolean): Unit

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  54. def writeByte(columnBytes: AnyRef, value: Byte): Unit

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  55. def writeDecimal(columnBytes: AnyRef, value: Decimal, precision: Int): Unit

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  56. def writeDouble(columnBytes: AnyRef, value: Double): Unit

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  57. def writeFloat(columnBytes: AnyRef, value: Float): Unit

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  58. def writeInt(columnBytes: AnyRef, value: Int): Unit

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  59. def writeInterval(columnBytes: AnyRef, value: CalendarInterval): Unit

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  60. def writeLong(columnBytes: AnyRef, value: Long): Unit

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  61. def writeLongDecimal(columnBytes: AnyRef, value: Decimal, precision: Int): Unit

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  62. def writeMap(columnBytes: AnyRef, value: UnsafeMapData): Unit

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  63. def writeShort(columnBytes: AnyRef, value: Short): Unit

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  64. def writeStruct(columnBytes: AnyRef, value: UnsafeRow): Unit

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  65. def writeUTF8String(columnBytes: AnyRef, value: UTF8String): Unit

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