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] with AutoCloseable

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
AutoCloseable, Iterator[A], TraversableOnce[A], GenTraversableOnce[A], AnyRef, Any
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Inherited
  1. GenerateFlatIterator
  2. AutoCloseable
  3. Iterator
  4. TraversableOnce
  5. GenTraversableOnce
  6. AnyRef
  7. Any
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Visibility
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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 close(): Unit

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    Definition Classes
    GenerateFlatIterator → AutoCloseable

  15. 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.

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

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    Definition Classes
    TraversableOnce

  17. def contains(elem: Any): Boolean

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    AnyRef

  28. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

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

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

  32. def finalize(): Unit

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

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

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

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

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

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    Definition Classes
    AnyRef → Any

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

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    Definition Classes
    Iterator

  43. def hasDefiniteSize: Boolean

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  44. def hasNext: Boolean

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    Definition Classes
    GenerateFlatIterator → Iterator

  45. def hashCode(): Int

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    Definition Classes
    AnyRef → Any

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

  48. val init: U

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  49. def isEmpty: Boolean

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  50. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any

  51. def isTraversableAgain: Boolean

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    Definition Classes
    Iterator → GenTraversableOnce

  52. def length: Int

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  58. def mkString: String

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  59. def mkString(sep: String): String

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    AnyRef

  62. def next(): A

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    Definition Classes
    GenerateFlatIterator → Iterator

  63. def nonEmpty: Boolean

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  64. final def notify(): Unit

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    Definition Classes
    AnyRef

  65. final def notifyAll(): Unit

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    Definition Classes
    AnyRef

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  76. def reversed: List[A]

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    Attributes
    protected[this]
    Definition Classes
    TraversableOnce

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

  80. def seq: Iterator[A]

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  81. def size: Int

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    AnyRef

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  92. def toIndexedSeq: IndexedSeq[A]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  93. def toIterable: Iterable[A]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  94. def toIterator: Iterator[A]

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    Definition Classes
    Iterator → GenTraversableOnce

  95. def toList: List[A]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  97. def toSeq: Seq[A]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

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

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  99. def toStream: Stream[A]

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    Definition Classes
    Iterator → GenTraversableOnce

  100. def toString(): String

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    Definition Classes
    Iterator → AnyRef → Any

  101. def toTraversable: Traversable[A]

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    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  102. def toVector: Vector[A]

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    Definition Classes
    TraversableOnce → GenTraversableOnce

  103. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

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

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    Definition Classes
    Iterator

Inherited from AutoCloseable

Inherited from Iterator[A]

Inherited from TraversableOnce[A]

Inherited from GenTraversableOnce[A]

Inherited from AnyRef

Inherited from Any

Ungrouped