com.timgroup.iterata

ParIterator

Related Docs: object ParIterator | package iterata

class ParIterator[A] extends AbstractIterator[A]

This "parallel iterator" combines Scala’s parallel collections with an underlying grouped iterator, processing the contents of each chunk in parallel.

See: http://docs.scala-lang.org/overviews/parallel-collections/overview.html

The goal is to read a chunk from the underlying grouped iterator, and then to process each element inside the chunk in parallel via #map and #flatMap, using the standard Scala parallel collections.

A

the type of each element

Linear Supertypes
AbstractIterator[A], Iterator[A], TraversableOnce[A], GenTraversableOnce[A], AnyRef, Any
Ordering
  1. Alphabetic
  2. By inheritance
Inherited
  1. ParIterator
  2. AbstractIterator
  3. Iterator
  4. TraversableOnce
  5. GenTraversableOnce
  6. AnyRef
  7. Any
  1. Hide All
  2. Show all
Learn more about member selection
Visibility
  1. Public
  2. All

Instance Constructors

  1. new ParIterator(groupedIt: Iterator[Seq[A]])

    groupedIt

    an underlying grouped iterator, e.g. from Iterator#grouped

Type Members

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

    Definition Classes
    Iterator

Value Members

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

    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

    Definition Classes
    AnyRef → Any

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

    Definition Classes
    Iterator

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    AnyRef → Any

  7. def addString(b: StringBuilder): StringBuilder

    Definition Classes
    TraversableOnce

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

    Definition Classes
    TraversableOnce

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

    Definition Classes
    TraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

  11. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  12. def buffered: BufferedIterator[A]

    Definition Classes
    Iterator

  13. def clone(): AnyRef

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

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

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

    Definition Classes
    TraversableOnce

  16. def contains(elem: Any): Boolean

    Definition Classes
    Iterator

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

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce

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

    Definition Classes
    Iterator

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

  23. var currChunk: List[A]

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

    Definition Classes
    Iterator

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

    Definition Classes
    Iterator

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

    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: (A) ⇒ Boolean): Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

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

    Definition Classes
    Iterator

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

    Definition Classes
    Iterator

  32. def finalize(): Unit

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

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

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

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

    Definition Classes
    ParIterator → Iterator

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

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

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

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

    Definition Classes
    AnyRef → Any

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

    Definition Classes
    Iterator

  42. val groupedIt: Iterator[Seq[A]]

    an underlying grouped iterator, e.g.

    an underlying grouped iterator, e.g. from Iterator#grouped

  43. def hasDefiniteSize: Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  44. def hasNext: Boolean

    Definition Classes
    ParIterator → Iterator

  45. def hashCode(): Int

    Definition Classes
    AnyRef → Any

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

    Definition Classes
    Iterator

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

    Definition Classes
    Iterator

  48. def isEmpty: Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  49. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  50. def isTraversableAgain: Boolean

    Definition Classes
    Iterator → GenTraversableOnce

  51. def length: Int

    Definition Classes
    Iterator

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

    Definition Classes
    ParIterator → Iterator

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

  57. def mkString: String

    Definition Classes
    TraversableOnce → GenTraversableOnce

  58. def mkString(sep: String): String

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    AnyRef

  61. final def next(): A

    Definition Classes
    ParIterator → Iterator
    Annotations
    @tailrec()

  62. def nonEmpty: Boolean

    Definition Classes
    TraversableOnce → GenTraversableOnce

  63. final def notify(): Unit

    Definition Classes
    AnyRef

  64. final def notifyAll(): Unit

    Definition Classes
    AnyRef

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

    Definition Classes
    Iterator

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

    Definition Classes
    Iterator

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

    Definition Classes
    Iterator

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

  75. def reversed: List[A]

    Attributes
    protected[this]
    Definition Classes
    TraversableOnce

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

    Definition Classes
    Iterator

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

    Definition Classes
    Iterator

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

    Definition Classes
    Iterator

  79. def seq: Iterator[A]

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  80. def size: Int

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    Iterator

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

    Definition Classes
    Iterator

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

    Definition Classes
    Iterator

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    AnyRef

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

    Definition Classes
    Iterator

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

    Definition Classes
    Iterator

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

  91. def toIndexedSeq: IndexedSeq[A]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  92. def toIterable: Iterable[A]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  93. def toIterator: Iterator[A]

    Definition Classes
    Iterator → GenTraversableOnce

  94. def toList: List[A]

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

  96. def toSeq: Seq[A]

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

  98. def toStream: Stream[A]

    Definition Classes
    Iterator → GenTraversableOnce

  99. def toString(): String

    Definition Classes
    Iterator → AnyRef → Any

  100. def toTraversable: Traversable[A]

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  101. def toVector: Vector[A]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  102. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    Iterator

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

    Definition Classes
    Iterator

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

    Definition Classes
    Iterator

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

    Definition Classes
    Iterator

Inherited from AbstractIterator[A]

Inherited from Iterator[A]

Inherited from TraversableOnce[A]

Inherited from GenTraversableOnce[A]

Inherited from AnyRef

Inherited from Any

Ungrouped