Class/Object

org.apache.spark.sql.collection

GenerateFlatIterator

Related Docs: object GenerateFlatIterator | package collection

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final class GenerateFlatIterator[A, U] extends Iterator[A]

An iterator that will keep generating iterators by invoking a given function and return a flattened iterator. Typically useful to generate an iterator on top of an arbitrary source where source size or structure is not pre-determined (e.g. source may not have flatMap/fold or such methods).

Use the GenerateFlatIterator.TERMINATE token to indicate end of iteration.

Linear Supertypes
Iterator[A], TraversableOnce[A], GenTraversableOnce[A], AnyRef, Any
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Inherited
  1. GenerateFlatIterator
  2. Iterator
  3. TraversableOnce
  4. GenTraversableOnce
  5. AnyRef
  6. Any
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Visibility
  1. Public
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Instance Constructors

  1. new GenerateFlatIterator(genFunc: (U) ⇒ (Iterator[A], U), init: U)

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Type Members

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

  4. def /:[B](z: B)(op: (B, A) ⇒ B): B

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  5. def :\[B](z: B)(op: (A, B) ⇒ B): B

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    AnyRef → Any

  7. def addString(b: StringBuilder): StringBuilder

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    Definition Classes
    TraversableOnce

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

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    Definition Classes
    TraversableOnce

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

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    Definition Classes
    TraversableOnce

  10. def aggregate[B](z: ⇒ B)(seqop: (B, A) ⇒ B, combop: (B, B) ⇒ B): B

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  11. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any

  12. def buffered: BufferedIterator[A]

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    Definition Classes
    Iterator

  13. def clone(): AnyRef

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

  14. def collect[B](pf: PartialFunction[A, B]): Iterator[B]

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    Definition Classes
    Iterator
    Annotations
    @migration
    Migration

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

  15. def collectFirst[B](pf: PartialFunction[A, B]): Option[B]

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    Definition Classes
    TraversableOnce

  16. def contains(elem: Any): Boolean

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  18. def copyToArray[B >: A](xs: Array[B]): Unit

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  20. def copyToBuffer[B >: A](dest: Buffer[B]): Unit

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    Definition Classes
    TraversableOnce

  21. def corresponds[B](that: GenTraversableOnce[B])(p: (A, B) ⇒ Boolean): Boolean

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    Definition Classes
    Iterator

  22. def count(p: (A) ⇒ Boolean): Int

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  23. def drop(n: Int): Iterator[A]

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    Definition Classes
    Iterator

  24. def dropWhile(p: (A) ⇒ Boolean): Iterator[A]

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    Definition Classes
    Iterator

  25. def duplicate: (Iterator[A], Iterator[A])

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    Definition Classes
    Iterator

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

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    Definition Classes
    AnyRef

  27. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  28. def exists(p: (A) ⇒ Boolean): Boolean

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  29. def filter(p: (A) ⇒ Boolean): Iterator[A]

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    Definition Classes
    Iterator

  30. def filterNot(p: (A) ⇒ Boolean): Iterator[A]

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    Definition Classes
    Iterator

  31. def finalize(): Unit

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

  32. def find(p: (A) ⇒ Boolean): Option[A]

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  33. def flatMap[B](f: (A) ⇒ GenTraversableOnce[B]): Iterator[B]

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    Definition Classes
    Iterator

  34. def fold[A1 >: A](z: A1)(op: (A1, A1) ⇒ A1): A1

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  35. def foldLeft[B](z: B)(op: (B, A) ⇒ B): B

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  36. def foldRight[B](z: B)(op: (A, B) ⇒ B): B

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  37. def forall(p: (A) ⇒ Boolean): Boolean

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  38. def foreach[U](f: (A) ⇒ U): Unit

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  39. val genFunc: (U) ⇒ (Iterator[A], U)

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

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    Definition Classes
    AnyRef → Any

  41. def grouped[B >: A](size: Int): GroupedIterator[B]

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    Definition Classes
    Iterator

  42. def hasDefiniteSize: Boolean

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  43. def hasNext: Boolean

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    Definition Classes
    GenerateFlatIterator → Iterator

  44. def hashCode(): Int

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    Definition Classes
    AnyRef → Any

  45. def indexOf[B >: A](elem: B): Int

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    Definition Classes
    Iterator

  46. def indexWhere(p: (A) ⇒ Boolean): Int

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    Definition Classes
    Iterator

  47. val init: U

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  48. def isEmpty: Boolean

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  49. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any

  50. def isTraversableAgain: Boolean

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    Definition Classes
    Iterator → GenTraversableOnce

  51. def length: Int

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    Definition Classes
    Iterator

  52. def map[B](f: (A) ⇒ B): Iterator[B]

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    Definition Classes
    Iterator

  53. def max[B >: A](implicit cmp: Ordering[B]): A

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  54. def maxBy[B](f: (A) ⇒ B)(implicit cmp: Ordering[B]): A

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  55. def min[B >: A](implicit cmp: Ordering[B]): A

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  56. def minBy[B](f: (A) ⇒ B)(implicit cmp: Ordering[B]): A

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  57. def mkString: String

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  58. def mkString(sep: String): String

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    AnyRef

  61. def next(): A

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    Definition Classes
    GenerateFlatIterator → Iterator

  62. def nonEmpty: Boolean

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  63. final def notify(): Unit

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    Definition Classes
    AnyRef

  64. final def notifyAll(): Unit

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    Definition Classes
    AnyRef

  65. def padTo[A1 >: A](len: Int, elem: A1): Iterator[A1]

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    Definition Classes
    Iterator

  66. def partition(p: (A) ⇒ Boolean): (Iterator[A], Iterator[A])

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

  68. def product[B >: A](implicit num: Numeric[B]): B

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  69. def reduce[A1 >: A](op: (A1, A1) ⇒ A1): A1

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  70. def reduceLeft[B >: A](op: (B, A) ⇒ B): B

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    Definition Classes
    TraversableOnce

  71. def reduceLeftOption[B >: A](op: (B, A) ⇒ B): Option[B]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  72. def reduceOption[A1 >: A](op: (A1, A1) ⇒ A1): Option[A1]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  73. def reduceRight[B >: A](op: (A, B) ⇒ B): B

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  74. def reduceRightOption[B >: A](op: (A, B) ⇒ B): Option[B]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  75. def reversed: List[A]

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    Attributes
    protected[this]
    Definition Classes
    TraversableOnce

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

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    Definition Classes
    Iterator

  77. def scanLeft[B](z: B)(op: (B, A) ⇒ B): Iterator[B]

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    Definition Classes
    Iterator

  78. def scanRight[B](z: B)(op: (A, B) ⇒ B): Iterator[B]

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    Definition Classes
    Iterator

  79. def seq: Iterator[A]

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  80. def size: Int

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  81. def slice(from: Int, until: Int): Iterator[A]

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    Definition Classes
    Iterator

  82. def sliding[B >: A](size: Int, step: Int): GroupedIterator[B]

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    Definition Classes
    Iterator

  83. def span(p: (A) ⇒ Boolean): (Iterator[A], Iterator[A])

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    Definition Classes
    Iterator

  84. def sum[B >: A](implicit num: Numeric[B]): B

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    AnyRef

  86. def take(n: Int): Iterator[A]

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    Definition Classes
    Iterator

  87. def takeWhile(p: (A) ⇒ Boolean): Iterator[A]

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    Definition Classes
    Iterator

  88. def to[Col[_]](implicit cbf: CanBuildFrom[Nothing, A, Col[A]]): Col[A]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  89. def toArray[B >: A](implicit arg0: ClassTag[B]): Array[B]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  90. def toBuffer[B >: A]: Buffer[B]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  91. def toIndexedSeq: IndexedSeq[A]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  92. def toIterable: Iterable[A]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  93. def toIterator: Iterator[A]

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    Definition Classes
    Iterator → GenTraversableOnce

  94. def toList: List[A]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  95. def toMap[T, U](implicit ev: <:<[A, (T, U)]): Map[T, U]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  96. def toSeq: Seq[A]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  97. def toSet[B >: A]: Set[B]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  98. def toStream: Stream[A]

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    Definition Classes
    Iterator → GenTraversableOnce

  99. def toString(): String

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    Definition Classes
    Iterator → AnyRef → Any

  100. def toTraversable: Traversable[A]

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  101. def toVector: Vector[A]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  102. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  105. def withFilter(p: (A) ⇒ Boolean): Iterator[A]

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    Definition Classes
    Iterator

  106. def zip[B](that: Iterator[B]): Iterator[(A, B)]

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

  108. def zipWithIndex: Iterator[(A, Int)]

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    Definition Classes
    Iterator

Inherited from Iterator[A]

Inherited from TraversableOnce[A]

Inherited from GenTraversableOnce[A]

Inherited from AnyRef

Inherited from Any

Ungrouped