org.apache.spark.sql.execution.aggregate

AggregationIterator

abstract class AggregationIterator extends Iterator[UnsafeRow] with Logging

The base class of SortBasedAggregationIterator and TungstenAggregationIterator. It mainly contains two parts: 1. It initializes aggregate functions. 2. It creates two functions, processRow and generateOutput based on AggregateMode of its aggregate functions. processRow is the function to handle an input. generateOutput is used to generate result.

Linear Supertypes
Logging, Iterator[UnsafeRow], TraversableOnce[UnsafeRow], GenTraversableOnce[UnsafeRow], AnyRef, Any
Known Subclasses
ObjectAggregationIterator, SortBasedAggregationIterator, TungstenAggregationIterator
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Inherited
  1. AggregationIterator
  2. Logging
  3. Iterator
  4. TraversableOnce
  5. GenTraversableOnce
  6. AnyRef
  7. Any
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Visibility
  1. Public
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Instance Constructors

  1. new AggregationIterator(groupingExpressions: Seq[NamedExpression], inputAttributes: Seq[Attribute], aggregateExpressions: Seq[AggregateExpression], aggregateAttributes: Seq[Attribute], initialInputBufferOffset: Int, resultExpressions: Seq[NamedExpression], newMutableProjection: (Seq[Expression], Seq[Attribute]) ⇒ MutableProjection)

Type Members

  1. class GroupedIterator[B >: A] extends AbstractIterator[Seq[B]] with Iterator[Seq[B]]

    Definition Classes
    Iterator

Abstract Value Members

  1. abstract def hasNext: Boolean

    Definition Classes
    Iterator

  2. abstract def next(): UnsafeRow

    Definition Classes
    Iterator

Concrete Value Members

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

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

  4. def ++[B >: UnsafeRow](that: ⇒ GenTraversableOnce[B]): Iterator[B]

    Definition Classes
    Iterator

  5. def /:[B](z: B)(op: (B, UnsafeRow) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  6. def :\[B](z: B)(op: (UnsafeRow, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  9. def addString(b: StringBuilder): StringBuilder

    Definition Classes
    TraversableOnce

  10. def addString(b: StringBuilder, sep: String): StringBuilder

    Definition Classes
    TraversableOnce

  11. def addString(b: StringBuilder, start: String, sep: String, end: String): StringBuilder

    Definition Classes
    TraversableOnce

  12. def aggregate[B](z: B)(seqop: (B, UnsafeRow) ⇒ B, combop: (B, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  13. val aggregateFunctions: Array[AggregateFunction]

    Attributes
    protected

  14. val allImperativeAggregateFunctionPositions: Array[Int]

    Attributes
    protected[this]

  15. val allImperativeAggregateFunctions: Array[ImperativeAggregate]

    Attributes
    protected[this]

  16. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  17. def buffered: BufferedIterator[UnsafeRow]

    Definition Classes
    Iterator

  18. def clone(): AnyRef

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

  19. def collect[B](pf: PartialFunction[UnsafeRow, B]): Iterator[B]

    Definition Classes
    Iterator
    Annotations
    @migration
    Migration

    (Changed in version 2.8.0) collect has changed. The previous behavior can be reproduced with toSeq.

  20. def collectFirst[B](pf: PartialFunction[UnsafeRow, B]): Option[B]

    Definition Classes
    TraversableOnce

  21. def contains(elem: Any): Boolean

    Definition Classes
    Iterator

  22. def copyToArray[B >: UnsafeRow](xs: Array[B], start: Int, len: Int): Unit

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  23. def copyToArray[B >: UnsafeRow](xs: Array[B]): Unit

    Definition Classes
    TraversableOnce → GenTraversableOnce

  24. def copyToArray[B >: UnsafeRow](xs: Array[B], start: Int): Unit

    Definition Classes
    TraversableOnce → GenTraversableOnce

  25. def copyToBuffer[B >: UnsafeRow](dest: Buffer[B]): Unit

    Definition Classes
    TraversableOnce

  26. def corresponds[B](that: GenTraversableOnce[B])(p: (UnsafeRow, B) ⇒ Boolean): Boolean

    Definition Classes
    Iterator

  27. def count(p: (UnsafeRow) ⇒ Boolean): Int

    Definition Classes
    TraversableOnce → GenTraversableOnce

  28. def drop(n: Int): Iterator[UnsafeRow]

    Definition Classes
    Iterator

  29. def dropWhile(p: (UnsafeRow) ⇒ Boolean): Iterator[UnsafeRow]

    Definition Classes
    Iterator

  30. def duplicate: (Iterator[UnsafeRow], Iterator[UnsafeRow])

    Definition Classes
    Iterator

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

    Definition Classes
    AnyRef

  32. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  33. def exists(p: (UnsafeRow) ⇒ Boolean): Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  34. val expressionAggInitialProjection: MutableProjection

    Attributes
    protected[this]

  35. def filter(p: (UnsafeRow) ⇒ Boolean): Iterator[UnsafeRow]

    Definition Classes
    Iterator

  36. def filterNot(p: (UnsafeRow) ⇒ Boolean): Iterator[UnsafeRow]

    Definition Classes
    Iterator

  37. def finalize(): Unit

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

  38. def find(p: (UnsafeRow) ⇒ Boolean): Option[UnsafeRow]

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  39. def flatMap[B](f: (UnsafeRow) ⇒ GenTraversableOnce[B]): Iterator[B]

    Definition Classes
    Iterator

  40. def fold[A1 >: UnsafeRow](z: A1)(op: (A1, A1) ⇒ A1): A1

    Definition Classes
    TraversableOnce → GenTraversableOnce

  41. def foldLeft[B](z: B)(op: (B, UnsafeRow) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  42. def foldRight[B](z: B)(op: (UnsafeRow, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  43. def forall(p: (UnsafeRow) ⇒ Boolean): Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  44. def foreach[U](f: (UnsafeRow) ⇒ U): Unit

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  45. val generateOutput: (UnsafeRow, InternalRow) ⇒ UnsafeRow

    Attributes
    protected

  46. def generateProcessRow(expressions: Seq[AggregateExpression], functions: Seq[AggregateFunction], inputAttributes: Seq[Attribute]): (InternalRow, InternalRow) ⇒ Unit

    Attributes
    protected

  47. def generateResultProjection(): (UnsafeRow, InternalRow) ⇒ UnsafeRow

    Attributes
    protected

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

    Definition Classes
    AnyRef → Any

  49. def grouped[B >: UnsafeRow](size: Int): GroupedIterator[B]

    Definition Classes
    Iterator

  50. val groupingAttributes: Seq[Attribute]

    Attributes
    protected

  51. val groupingProjection: UnsafeProjection

    Attributes
    protected

  52. def hasDefiniteSize: Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  53. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  54. def indexOf[B >: UnsafeRow](elem: B): Int

    Definition Classes
    Iterator

  55. def indexWhere(p: (UnsafeRow) ⇒ Boolean): Int

    Definition Classes
    Iterator

  56. def initializeAggregateFunctions(expressions: Seq[AggregateExpression], startingInputBufferOffset: Int): Array[AggregateFunction]

    Attributes
    protected

  57. def initializeBuffer(buffer: InternalRow): Unit

    Initializes buffer values for all aggregate functions.

    Initializes buffer values for all aggregate functions.

    Attributes
    protected

  58. def initializeLogIfNecessary(isInterpreter: Boolean): Unit

    Attributes
    protected
    Definition Classes
    Logging

  59. def isEmpty: Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  60. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  61. def isTraceEnabled(): Boolean

    Attributes
    protected
    Definition Classes
    Logging

  62. def isTraversableAgain: Boolean

    Definition Classes
    Iterator → GenTraversableOnce

  63. def length: Int

    Definition Classes
    Iterator

  64. def log: Logger

    Attributes
    protected
    Definition Classes
    Logging

  65. def logDebug(msg: ⇒ String, throwable: Throwable): Unit

    Attributes
    protected
    Definition Classes
    Logging

  66. def logDebug(msg: ⇒ String): Unit

    Attributes
    protected
    Definition Classes
    Logging

  67. def logError(msg: ⇒ String, throwable: Throwable): Unit

    Attributes
    protected
    Definition Classes
    Logging

  68. def logError(msg: ⇒ String): Unit

    Attributes
    protected
    Definition Classes
    Logging

  69. def logInfo(msg: ⇒ String, throwable: Throwable): Unit

    Attributes
    protected
    Definition Classes
    Logging

  70. def logInfo(msg: ⇒ String): Unit

    Attributes
    protected
    Definition Classes
    Logging

  71. def logName: String

    Attributes
    protected
    Definition Classes
    Logging

  72. def logTrace(msg: ⇒ String, throwable: Throwable): Unit

    Attributes
    protected
    Definition Classes
    Logging

  73. def logTrace(msg: ⇒ String): Unit

    Attributes
    protected
    Definition Classes
    Logging

  74. def logWarning(msg: ⇒ String, throwable: Throwable): Unit

    Attributes
    protected
    Definition Classes
    Logging

  75. def logWarning(msg: ⇒ String): Unit

    Attributes
    protected
    Definition Classes
    Logging

  76. def map[B](f: (UnsafeRow) ⇒ B): Iterator[B]

    Definition Classes
    Iterator

  77. def max[B >: UnsafeRow](implicit cmp: Ordering[B]): UnsafeRow

    Definition Classes
    TraversableOnce → GenTraversableOnce

  78. def maxBy[B](f: (UnsafeRow) ⇒ B)(implicit cmp: Ordering[B]): UnsafeRow

    Definition Classes
    TraversableOnce → GenTraversableOnce

  79. def min[B >: UnsafeRow](implicit cmp: Ordering[B]): UnsafeRow

    Definition Classes
    TraversableOnce → GenTraversableOnce

  80. def minBy[B](f: (UnsafeRow) ⇒ B)(implicit cmp: Ordering[B]): UnsafeRow

    Definition Classes
    TraversableOnce → GenTraversableOnce

  81. def mkString: String

    Definition Classes
    TraversableOnce → GenTraversableOnce

  82. def mkString(sep: String): String

    Definition Classes
    TraversableOnce → GenTraversableOnce

  83. def mkString(start: String, sep: String, end: String): String

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    AnyRef

  85. def nonEmpty: Boolean

    Definition Classes
    TraversableOnce → GenTraversableOnce

  86. final def notify(): Unit

    Definition Classes
    AnyRef

  87. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  88. def padTo[A1 >: UnsafeRow](len: Int, elem: A1): Iterator[A1]

    Definition Classes
    Iterator

  89. def partition(p: (UnsafeRow) ⇒ Boolean): (Iterator[UnsafeRow], Iterator[UnsafeRow])

    Definition Classes
    Iterator

  90. def patch[B >: UnsafeRow](from: Int, patchElems: Iterator[B], replaced: Int): Iterator[B]

    Definition Classes
    Iterator

  91. val processRow: (InternalRow, InternalRow) ⇒ Unit

    Attributes
    protected

  92. def product[B >: UnsafeRow](implicit num: Numeric[B]): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  93. def reduce[A1 >: UnsafeRow](op: (A1, A1) ⇒ A1): A1

    Definition Classes
    TraversableOnce → GenTraversableOnce

  94. def reduceLeft[B >: UnsafeRow](op: (B, UnsafeRow) ⇒ B): B

    Definition Classes
    TraversableOnce

  95. def reduceLeftOption[B >: UnsafeRow](op: (B, UnsafeRow) ⇒ B): Option[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  96. def reduceOption[A1 >: UnsafeRow](op: (A1, A1) ⇒ A1): Option[A1]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  97. def reduceRight[B >: UnsafeRow](op: (UnsafeRow, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  98. def reduceRightOption[B >: UnsafeRow](op: (UnsafeRow, B) ⇒ B): Option[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  99. def reversed: List[UnsafeRow]

    Attributes
    protected[this]
    Definition Classes
    TraversableOnce

  100. def sameElements(that: Iterator[_]): Boolean

    Definition Classes
    Iterator

  101. def scanLeft[B](z: B)(op: (B, UnsafeRow) ⇒ B): Iterator[B]

    Definition Classes
    Iterator

  102. def scanRight[B](z: B)(op: (UnsafeRow, B) ⇒ B): Iterator[B]

    Definition Classes
    Iterator

  103. def seq: Iterator[UnsafeRow]

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  104. def size: Int

    Definition Classes
    TraversableOnce → GenTraversableOnce

  105. def slice(from: Int, until: Int): Iterator[UnsafeRow]

    Definition Classes
    Iterator

  106. def sliding[B >: UnsafeRow](size: Int, step: Int): GroupedIterator[B]

    Definition Classes
    Iterator

  107. def span(p: (UnsafeRow) ⇒ Boolean): (Iterator[UnsafeRow], Iterator[UnsafeRow])

    Definition Classes
    Iterator

  108. def sum[B >: UnsafeRow](implicit num: Numeric[B]): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    AnyRef

  110. def take(n: Int): Iterator[UnsafeRow]

    Definition Classes
    Iterator

  111. def takeWhile(p: (UnsafeRow) ⇒ Boolean): Iterator[UnsafeRow]

    Definition Classes
    Iterator

  112. def to[Col[_]](implicit cbf: CanBuildFrom[Nothing, UnsafeRow, Col[UnsafeRow]]): Col[UnsafeRow]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  113. def toArray[B >: UnsafeRow](implicit arg0: ClassTag[B]): Array[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  114. def toBuffer[B >: UnsafeRow]: Buffer[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  115. def toIndexedSeq: IndexedSeq[UnsafeRow]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  116. def toIterable: Iterable[UnsafeRow]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  117. def toIterator: Iterator[UnsafeRow]

    Definition Classes
    Iterator → GenTraversableOnce

  118. def toList: List[UnsafeRow]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  119. def toMap[T, U](implicit ev: <:<[UnsafeRow, (T, U)]): Map[T, U]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  120. def toSeq: Seq[UnsafeRow]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  121. def toSet[B >: UnsafeRow]: Set[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  122. def toStream: Stream[UnsafeRow]

    Definition Classes
    Iterator → GenTraversableOnce

  123. def toString(): String

    Definition Classes
    Iterator → AnyRef → Any

  124. def toTraversable: Traversable[UnsafeRow]

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  125. def toVector: Vector[UnsafeRow]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  126. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  129. def withFilter(p: (UnsafeRow) ⇒ Boolean): Iterator[UnsafeRow]

    Definition Classes
    Iterator

  130. def zip[B](that: Iterator[B]): Iterator[(UnsafeRow, B)]

    Definition Classes
    Iterator

  131. def zipAll[B, A1 >: UnsafeRow, B1 >: B](that: Iterator[B], thisElem: A1, thatElem: B1): Iterator[(A1, B1)]

    Definition Classes
    Iterator

  132. def zipWithIndex: Iterator[(UnsafeRow, Int)]

    Definition Classes
    Iterator

Deprecated Value Members

  1. def /:\[A1 >: UnsafeRow](z: A1)(op: (A1, A1) ⇒ A1): A1

    Definition Classes
    GenTraversableOnce
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) use fold instead

Inherited from Logging

Inherited from Iterator[UnsafeRow]

Inherited from TraversableOnce[UnsafeRow]

Inherited from GenTraversableOnce[UnsafeRow]

Inherited from AnyRef

Inherited from Any

Ungrouped