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org.apache.spark.sql.execution.aggregate

AggregationIterator

abstract class AggregationIterator extends Iterator[UnsafeRow] with Logging

The base class of SortBasedAggregationIterator, TungstenAggregationIterator and ObjectAggregationIterator. 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
MergingSessionsIterator, ObjectAggregationIterator, SortBasedAggregationIterator, TungstenAggregationIterator
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. AggregationIterator
  2. Logging
  3. Iterator
  4. TraversableOnce
  5. GenTraversableOnce
  6. AnyRef
  7. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new AggregationIterator(partIndex: Int, 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: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. def ++[B >: UnsafeRow](that: ⇒ GenTraversableOnce[B]): Iterator[B]
    Definition Classes
    Iterator
  4. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  5. def addString(b: StringBuilder): StringBuilder
    Definition Classes
    TraversableOnce
  6. def addString(b: StringBuilder, sep: String): StringBuilder
    Definition Classes
    TraversableOnce
  7. def addString(b: StringBuilder, start: String, sep: String, end: String): StringBuilder
    Definition Classes
    TraversableOnce
  8. def aggregate[B](z: ⇒ B)(seqop: (B, UnsafeRow) ⇒ B, combop: (B, B) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  9. val aggregateFunctions: Array[AggregateFunction]
    Attributes
    protected
  10. val allImperativeAggregateFunctionPositions: Array[Int]
    Attributes
    protected[this]
  11. val allImperativeAggregateFunctions: Array[ImperativeAggregate]
    Attributes
    protected[this]
  12. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  13. def buffered: BufferedIterator[UnsafeRow]
    Definition Classes
    Iterator
  14. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native() @HotSpotIntrinsicCandidate()
  15. 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.

  16. def collectFirst[B](pf: PartialFunction[UnsafeRow, B]): Option[B]
    Definition Classes
    TraversableOnce
  17. def contains(elem: Any): Boolean
    Definition Classes
    Iterator
  18. def copyToArray[B >: UnsafeRow](xs: Array[B], start: Int, len: Int): Unit
    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  19. def copyToArray[B >: UnsafeRow](xs: Array[B]): Unit
    Definition Classes
    TraversableOnce → GenTraversableOnce
  20. def copyToArray[B >: UnsafeRow](xs: Array[B], start: Int): Unit
    Definition Classes
    TraversableOnce → GenTraversableOnce
  21. def copyToBuffer[B >: UnsafeRow](dest: Buffer[B]): Unit
    Definition Classes
    TraversableOnce
  22. def corresponds[B](that: GenTraversableOnce[B])(p: (UnsafeRow, B) ⇒ Boolean): Boolean
    Definition Classes
    Iterator
  23. def count(p: (UnsafeRow) ⇒ Boolean): Int
    Definition Classes
    TraversableOnce → GenTraversableOnce
  24. def drop(n: Int): Iterator[UnsafeRow]
    Definition Classes
    Iterator
  25. def dropWhile(p: (UnsafeRow) ⇒ Boolean): Iterator[UnsafeRow]
    Definition Classes
    Iterator
  26. def duplicate: (Iterator[UnsafeRow], Iterator[UnsafeRow])
    Definition Classes
    Iterator
  27. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  28. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  29. def exists(p: (UnsafeRow) ⇒ Boolean): Boolean
    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  30. val expressionAggInitialProjection: MutableProjection
    Attributes
    protected[this]
  31. def filter(p: (UnsafeRow) ⇒ Boolean): Iterator[UnsafeRow]
    Definition Classes
    Iterator
  32. def filterNot(p: (UnsafeRow) ⇒ Boolean): Iterator[UnsafeRow]
    Definition Classes
    Iterator
  33. def find(p: (UnsafeRow) ⇒ Boolean): Option[UnsafeRow]
    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  34. def flatMap[B](f: (UnsafeRow) ⇒ GenTraversableOnce[B]): Iterator[B]
    Definition Classes
    Iterator
  35. def fold[A1 >: UnsafeRow](z: A1)(op: (A1, A1) ⇒ A1): A1
    Definition Classes
    TraversableOnce → GenTraversableOnce
  36. def foldLeft[B](z: B)(op: (B, UnsafeRow) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  37. def foldRight[B](z: B)(op: (UnsafeRow, B) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  38. def forall(p: (UnsafeRow) ⇒ Boolean): Boolean
    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  39. def foreach[U](f: (UnsafeRow) ⇒ U): Unit
    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  40. val generateOutput: (UnsafeRow, InternalRow) ⇒ UnsafeRow
    Attributes
    protected
  41. def generateProcessRow(expressions: Seq[AggregateExpression], functions: Seq[AggregateFunction], inputAttributes: Seq[Attribute]): (InternalRow, InternalRow) ⇒ Unit
    Attributes
    protected
  42. def generateResultProjection(): (UnsafeRow, InternalRow) ⇒ UnsafeRow
    Attributes
    protected
  43. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  44. def grouped[B >: UnsafeRow](size: Int): GroupedIterator[B]
    Definition Classes
    Iterator
  45. val groupingAttributes: Seq[Attribute]
    Attributes
    protected
  46. val groupingProjection: UnsafeProjection
    Attributes
    protected
  47. def hasDefiniteSize: Boolean
    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  48. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  49. def indexOf[B >: UnsafeRow](elem: B, from: Int): Int
    Definition Classes
    Iterator
  50. def indexOf[B >: UnsafeRow](elem: B): Int
    Definition Classes
    Iterator
  51. def indexWhere(p: (UnsafeRow) ⇒ Boolean, from: Int): Int
    Definition Classes
    Iterator
  52. def indexWhere(p: (UnsafeRow) ⇒ Boolean): Int
    Definition Classes
    Iterator
  53. def initializeAggregateFunctions(expressions: Seq[AggregateExpression], startingInputBufferOffset: Int): Array[AggregateFunction]
    Attributes
    protected
  54. def initializeBuffer(buffer: InternalRow): Unit

    Initializes buffer values for all aggregate functions.

    Initializes buffer values for all aggregate functions.

    Attributes
    protected
  55. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  56. def initializeLogIfNecessary(isInterpreter: Boolean): Unit
    Attributes
    protected
    Definition Classes
    Logging
  57. def isEmpty: Boolean
    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  58. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  59. def isTraceEnabled(): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  60. def isTraversableAgain: Boolean
    Definition Classes
    Iterator → GenTraversableOnce
  61. def length: Int
    Definition Classes
    Iterator
  62. def log: Logger
    Attributes
    protected
    Definition Classes
    Logging
  63. def logDebug(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  64. def logDebug(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  65. def logError(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  66. def logError(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  67. def logInfo(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  68. def logInfo(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  69. def logName: String
    Attributes
    protected
    Definition Classes
    Logging
  70. def logTrace(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  71. def logTrace(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  72. def logWarning(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  73. def logWarning(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  74. def map[B](f: (UnsafeRow) ⇒ B): Iterator[B]
    Definition Classes
    Iterator
  75. def max[B >: UnsafeRow](implicit cmp: Ordering[B]): UnsafeRow
    Definition Classes
    TraversableOnce → GenTraversableOnce
  76. def maxBy[B](f: (UnsafeRow) ⇒ B)(implicit cmp: Ordering[B]): UnsafeRow
    Definition Classes
    TraversableOnce → GenTraversableOnce
  77. def min[B >: UnsafeRow](implicit cmp: Ordering[B]): UnsafeRow
    Definition Classes
    TraversableOnce → GenTraversableOnce
  78. def minBy[B](f: (UnsafeRow) ⇒ B)(implicit cmp: Ordering[B]): UnsafeRow
    Definition Classes
    TraversableOnce → GenTraversableOnce
  79. def mkString: String
    Definition Classes
    TraversableOnce → GenTraversableOnce
  80. def mkString(sep: String): String
    Definition Classes
    TraversableOnce → GenTraversableOnce
  81. def mkString(start: String, sep: String, end: String): String
    Definition Classes
    TraversableOnce → GenTraversableOnce
  82. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  83. def nonEmpty: Boolean
    Definition Classes
    TraversableOnce → GenTraversableOnce
  84. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  85. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  86. def padTo[A1 >: UnsafeRow](len: Int, elem: A1): Iterator[A1]
    Definition Classes
    Iterator
  87. def partition(p: (UnsafeRow) ⇒ Boolean): (Iterator[UnsafeRow], Iterator[UnsafeRow])
    Definition Classes
    Iterator
  88. def patch[B >: UnsafeRow](from: Int, patchElems: Iterator[B], replaced: Int): Iterator[B]
    Definition Classes
    Iterator
  89. val processRow: (InternalRow, InternalRow) ⇒ Unit
    Attributes
    protected
  90. def product[B >: UnsafeRow](implicit num: Numeric[B]): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  91. def reduce[A1 >: UnsafeRow](op: (A1, A1) ⇒ A1): A1
    Definition Classes
    TraversableOnce → GenTraversableOnce
  92. def reduceLeft[B >: UnsafeRow](op: (B, UnsafeRow) ⇒ B): B
    Definition Classes
    TraversableOnce
  93. def reduceLeftOption[B >: UnsafeRow](op: (B, UnsafeRow) ⇒ B): Option[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  94. def reduceOption[A1 >: UnsafeRow](op: (A1, A1) ⇒ A1): Option[A1]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  95. def reduceRight[B >: UnsafeRow](op: (UnsafeRow, B) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  96. def reduceRightOption[B >: UnsafeRow](op: (UnsafeRow, B) ⇒ B): Option[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  97. def reversed: List[UnsafeRow]
    Attributes
    protected[this]
    Definition Classes
    TraversableOnce
  98. def sameElements(that: Iterator[_]): Boolean
    Definition Classes
    Iterator
  99. def scanLeft[B](z: B)(op: (B, UnsafeRow) ⇒ B): Iterator[B]
    Definition Classes
    Iterator
  100. def scanRight[B](z: B)(op: (UnsafeRow, B) ⇒ B): Iterator[B]
    Definition Classes
    Iterator
  101. def seq: Iterator[UnsafeRow]
    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  102. def size: Int
    Definition Classes
    TraversableOnce → GenTraversableOnce
  103. def sizeHintIfCheap: Int
    Attributes
    protected[collection]
    Definition Classes
    GenTraversableOnce
  104. def slice(from: Int, until: Int): Iterator[UnsafeRow]
    Definition Classes
    Iterator
  105. def sliceIterator(from: Int, until: Int): Iterator[UnsafeRow]
    Attributes
    protected
    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(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  127. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  128. final def wait(): 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 /:[B](z: B)(op: (B, UnsafeRow) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
    Annotations
    @deprecated
    Deprecated

    (Since version 2.12.10) Use foldLeft instead of /:

  2. def :\[B](z: B)(op: (UnsafeRow, B) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
    Annotations
    @deprecated
    Deprecated

    (Since version 2.12.10) Use foldRight instead of :\

  3. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] ) @Deprecated
    Deprecated

Inherited from Logging

Inherited from Iterator[UnsafeRow]

Inherited from TraversableOnce[UnsafeRow]

Inherited from GenTraversableOnce[UnsafeRow]

Inherited from AnyRef

Inherited from Any

Ungrouped