Class

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

ColumnDecoder

Related Doc: package encoding

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abstract class ColumnDecoder extends ColumnEncoding

Linear Supertypes
ColumnEncoding, AnyRef, Any
Known Subclasses
BigDictionaryDecoder, BigDictionaryDecoderBase, BigDictionaryDecoderNullable, BooleanBitSetDecoder, BooleanBitSetDecoderBase, BooleanBitSetDecoderNullable, DictionaryDecoder, DictionaryDecoderBase, DictionaryDecoderNullable, IntDeltaDecoder, IntDeltaDecoderBase, IntDeltaDecoderNullable, LongDeltaDecoder, LongDeltaDecoderBase, LongDeltaDecoderNullable, NotNullDecoder, NullableDecoder, ResultSetDecoder, RunLengthDecoder, RunLengthDecoderBase, RunLengthDecoderNullable, UncompressedDecoder, UncompressedDecoderBase, UncompressedDecoderNullable, UnsafeRowDecoder
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Inherited
  1. ColumnDecoder
  2. ColumnEncoding
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  4. Any
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Visibility
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Instance Constructors

  1. new ColumnDecoder()

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Abstract Value Members

  1. abstract def hasNulls: Boolean

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    Attributes
    protected[org.apache.spark.sql]

  2. abstract def initializeCursor(columnBytes: AnyRef, cursor: Long, field: StructField): Long

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    Attributes
    protected[org.apache.spark.sql]

  3. abstract def initializeNulls(columnBytes: AnyRef, cursor: Long, field: StructField): Long

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    Attributes
    protected[org.apache.spark.sql]

  4. abstract def isNull(columnBytes: AnyRef, ordinal: Int): Boolean

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    Sequential null check for a value which should be invoked for all values of ordinal from 0 until maximum in order.

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

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    Definition Classes
    ColumnEncoding

  6. abstract def typeId: Int

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    Definition Classes
    ColumnEncoding

Concrete Value Members

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

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    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any

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

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    Definition Classes
    AnyRef → Any

  4. def absoluteArray(columnBytes: AnyRef, position: Int): Long

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  5. def absoluteBinary(columnBytes: AnyRef, position: Int): Long

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  6. def absoluteBoolean(columnBytes: AnyRef, position: Int): Long

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    Random access to the encoded data.

  7. def absoluteByte(columnBytes: AnyRef, position: Int): Long

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  8. def absoluteDate(columnBytes: AnyRef, position: Int): Long

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  9. def absoluteDecimal(columnBytes: AnyRef, position: Int): Long

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  10. def absoluteDouble(columnBytes: AnyRef, position: Int): Long

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  11. def absoluteFloat(columnBytes: AnyRef, position: Int): Long

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  12. def absoluteInt(columnBytes: AnyRef, position: Int): Long

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  13. def absoluteInterval(columnBytes: AnyRef, position: Int): Long

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  14. def absoluteLong(columnBytes: AnyRef, position: Int): Long

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  15. def absoluteLongDecimal(columnBytes: AnyRef, position: Int): Long

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  16. def absoluteMap(columnBytes: AnyRef, position: Int): Long

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  17. def absoluteShort(columnBytes: AnyRef, position: Int): Long

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  18. def absoluteStruct(columnBytes: AnyRef, position: Int): Long

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  19. def absoluteTimestamp(columnBytes: AnyRef, position: Int): Long

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  20. def absoluteUTF8String(columnBytes: AnyRef, position: Int): Long

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  21. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any

  22. final var baseCursor: Long

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    Attributes
    protected

  23. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  24. final var currentCursor: Long

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    Normally not used by decoder but supplied by caller to the methods but can be used if required but needs to be set by caller explicitly.

  25. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  26. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  27. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

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

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    Definition Classes
    AnyRef → Any

  29. def getStringDictionary: StringDictionary

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  30. def hashCode(): Int

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    Definition Classes
    AnyRef → Any

  31. final def initialize(columnBytes: AnyRef, cursor: Long, field: StructField): Long

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    Delta encoder/decoder depend on initialize being final and invoking initializeCursor and initializeNulls as below.

  32. final def initialize(buffer: ByteBuffer, field: StructField): Long

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  33. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any

  34. def isNullAt(columnBytes: AnyRef, position: Int): Boolean

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    Absolute ordinal null check for random access.

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

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    Definition Classes
    AnyRef

  36. def nextArray(columnBytes: AnyRef, cursor: Long): Long

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

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

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

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

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

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

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

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

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

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  46. def nextLongDecimal(columnBytes: AnyRef, cursor: Long): Long

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  47. def nextMap(columnBytes: AnyRef, cursor: Long): Long

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

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  49. def nextStruct(columnBytes: AnyRef, cursor: Long): Long

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

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  51. final def notify(): Unit

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    Definition Classes
    AnyRef

  52. final def notifyAll(): Unit

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    Definition Classes
    AnyRef

  53. def numNullsUntilPosition(columnBytes: AnyRef, position: Int): Int

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    Get the number of null values till given 0-based position (exclusive) for random access.

    Get the number of null values till given 0-based position (exclusive) for random access.

    Attributes
    protected

  54. def readArray(columnBytes: AnyRef, cursor: Long): ArrayData

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

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

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

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

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

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  60. def readDictionaryIndex(columnBytes: AnyRef, cursor: Long): Int

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

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

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

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

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

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

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  67. def readMap(columnBytes: AnyRef, cursor: Long): MapData

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

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  69. def readStruct(columnBytes: AnyRef, numFields: Int, cursor: Long): InternalRow

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

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

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

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    Definition Classes
    AnyRef

  73. def toString(): String

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    Definition Classes
    AnyRef → Any

  74. final def wait(): Unit

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    Definition Classes
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    Annotations
    @throws( ... )

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

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    Definition Classes
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    Annotations
    @throws( ... )

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

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    Definition Classes
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    Annotations
    @throws( ... )

Inherited from ColumnEncoding

Inherited from AnyRef

Inherited from Any

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