t

scala.collection.parallel

PreciseSplitter

trait PreciseSplitter[+T] extends Splitter[T]

A precise splitter (or a precise split iterator) can be split into arbitrary number of splitters that traverse disjoint subsets of arbitrary sizes.

Implementors might want to override the parameterless split method for efficiency.

T

type of the elements this splitter traverses

Since

2.9

Linear Supertypes
Splitter[T], Iterator[T], TraversableOnce[T], GenTraversableOnce[T], AnyRef, Any
Known Subclasses
Elements, SeqSplitter, Appended, Mapped, Patched, Taken, Zipped, ZippedAll, ParRangeIterator, ParVectorIterator, ParArrayIterator
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. PreciseSplitter
  2. Splitter
  3. Iterator
  4. TraversableOnce
  5. GenTraversableOnce
  6. AnyRef
  7. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

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(): T
    Definition Classes
    Iterator
  3. abstract def psplit(sizes: Int*): Seq[PreciseSplitter[T]]

    Splits the splitter into disjunct views.

    Splits the splitter into disjunct views.

    This overloaded version of the split method is specific to precise splitters. It returns a sequence of splitters, each iterating some subset of the elements in this splitter. The sizes of the subsplitters in the partition is equal to the size in the corresponding argument, as long as there are enough elements in this splitter to split it that way.

    If there aren't enough elements, a zero element splitter is appended for each additional argument. If there are additional elements, an additional splitter is appended at the end to compensate.

    For example, say we have a splitter ps with 100 elements. Invoking:

    ps.split(50, 25, 25, 10, 5)

    will return a sequence of five splitters, last two views being empty. On the other hand, calling:

    ps.split(50, 40)

    will return a sequence of three splitters, last of them containing ten elements.

    Note: this method actually invalidates the current splitter.

    Unlike the case with split found in splitters, views returned by this method can be empty.

    sizes

    the sizes used to split this split iterator into iterators that traverse disjunct subsets

    returns

    a sequence of disjunct subsequence iterators of this parallel iterator

  4. abstract def split: Seq[PreciseSplitter[T]]

    Splits the iterator into a sequence of disjunct views.

    Splits the iterator into a sequence of disjunct views.

    Returns a sequence of split iterators, each iterating over some subset of the elements in the collection. These subsets are disjoint and should be approximately equal in size. These subsets are not empty, unless the iterator is empty in which case this method returns a sequence with a single empty iterator. If the splitter has more than two elements, this method will return two or more splitters.

    Implementors are advised to keep this partition relatively small - two splitters are already enough when partitioning the collection, although there may be a few more.

    Note: this method actually invalidates the current splitter.

    returns

    a sequence of disjunct iterators of the collection

    Definition Classes
    PreciseSplitter → Splitter

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. def ++[B >: T](that: ⇒ GenTraversableOnce[B]): Iterator[B]
    Definition Classes
    Iterator
  4. def /:[B](z: B)(op: (B, T) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  5. def :\[B](z: B)(op: (T, 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, T) ⇒ B, combop: (B, B) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  11. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  12. def buffered: BufferedIterator[T]
    Definition Classes
    Iterator
  13. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  14. def collect[B](pf: PartialFunction[T, 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[T, B]): Option[B]
    Definition Classes
    TraversableOnce
  16. def contains(elem: Any): Boolean
    Definition Classes
    Iterator
  17. def copyToArray[B >: T](xs: Array[B], start: Int, len: Int): Unit
    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  18. def copyToArray[B >: T](xs: Array[B]): Unit
    Definition Classes
    TraversableOnce → GenTraversableOnce
  19. def copyToArray[B >: T](xs: Array[B], start: Int): Unit
    Definition Classes
    TraversableOnce → GenTraversableOnce
  20. def copyToBuffer[B >: T](dest: Buffer[B]): Unit
    Definition Classes
    TraversableOnce
  21. def corresponds[B](that: GenTraversableOnce[B])(p: (T, B) ⇒ Boolean): Boolean
    Definition Classes
    Iterator
  22. def count(p: (T) ⇒ Boolean): Int
    Definition Classes
    TraversableOnce → GenTraversableOnce
  23. def drop(n: Int): Iterator[T]
    Definition Classes
    Iterator
  24. def dropWhile(p: (T) ⇒ Boolean): Iterator[T]
    Definition Classes
    Iterator
  25. def duplicate: (Iterator[T], Iterator[T])
    Definition Classes
    Iterator
  26. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  27. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  28. def exists(p: (T) ⇒ Boolean): Boolean
    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  29. def filter(p: (T) ⇒ Boolean): Iterator[T]
    Definition Classes
    Iterator
  30. def filterNot(p: (T) ⇒ Boolean): Iterator[T]
    Definition Classes
    Iterator
  31. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  32. def find(p: (T) ⇒ Boolean): Option[T]
    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  33. def flatMap[B](f: (T) ⇒ GenTraversableOnce[B]): Iterator[B]
    Definition Classes
    Iterator
  34. def fold[A1 >: T](z: A1)(op: (A1, A1) ⇒ A1): A1
    Definition Classes
    TraversableOnce → GenTraversableOnce
  35. def foldLeft[B](z: B)(op: (B, T) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  36. def foldRight[B](z: B)(op: (T, B) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  37. def forall(p: (T) ⇒ Boolean): Boolean
    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  38. def foreach[U](f: (T) ⇒ U): Unit
    Definition Classes
    Iterator → GenTraversableOnce
  39. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
  40. def grouped[B >: T](size: Int): GroupedIterator[B]
    Definition Classes
    Iterator
  41. def hasDefiniteSize: Boolean
    Definition Classes
    Iterator → GenTraversableOnce
  42. def hashCode(): Int
    Definition Classes
    AnyRef → Any
  43. def indexOf[B >: T](elem: B, from: Int): Int
    Definition Classes
    Iterator
  44. def indexOf[B >: T](elem: B): Int
    Definition Classes
    Iterator
  45. def indexWhere(p: (T) ⇒ Boolean, from: Int): Int
    Definition Classes
    Iterator
  46. def indexWhere(p: (T) ⇒ Boolean): Int
    Definition Classes
    Iterator
  47. def isEmpty: Boolean
    Definition Classes
    Iterator → GenTraversableOnce
  48. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  49. def isTraversableAgain: Boolean
    Definition Classes
    Iterator → GenTraversableOnce
  50. def length: Int
    Definition Classes
    Iterator
  51. def map[B](f: (T) ⇒ B): Iterator[B]
    Definition Classes
    Iterator
  52. def max[B >: T](implicit cmp: Ordering[B]): T
    Definition Classes
    TraversableOnce → GenTraversableOnce
  53. def maxBy[B](f: (T) ⇒ B)(implicit cmp: Ordering[B]): T
    Definition Classes
    TraversableOnce → GenTraversableOnce
  54. def min[B >: T](implicit cmp: Ordering[B]): T
    Definition Classes
    TraversableOnce → GenTraversableOnce
  55. def minBy[B](f: (T) ⇒ B)(implicit cmp: Ordering[B]): T
    Definition Classes
    TraversableOnce → GenTraversableOnce
  56. def mkString: String
    Definition Classes
    TraversableOnce → GenTraversableOnce
  57. def mkString(sep: String): String
    Definition Classes
    TraversableOnce → GenTraversableOnce
  58. def mkString(start: String, sep: String, end: String): String
    Definition Classes
    TraversableOnce → GenTraversableOnce
  59. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  60. def nonEmpty: Boolean
    Definition Classes
    TraversableOnce → GenTraversableOnce
  61. final def notify(): Unit
    Definition Classes
    AnyRef
  62. final def notifyAll(): Unit
    Definition Classes
    AnyRef
  63. def padTo[A1 >: T](len: Int, elem: A1): Iterator[A1]
    Definition Classes
    Iterator
  64. def partition(p: (T) ⇒ Boolean): (Iterator[T], Iterator[T])
    Definition Classes
    Iterator
  65. def patch[B >: T](from: Int, patchElems: Iterator[B], replaced: Int): Iterator[B]
    Definition Classes
    Iterator
  66. def product[B >: T](implicit num: Numeric[B]): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  67. def reduce[A1 >: T](op: (A1, A1) ⇒ A1): A1
    Definition Classes
    TraversableOnce → GenTraversableOnce
  68. def reduceLeft[B >: T](op: (B, T) ⇒ B): B
    Definition Classes
    TraversableOnce
  69. def reduceLeftOption[B >: T](op: (B, T) ⇒ B): Option[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  70. def reduceOption[A1 >: T](op: (A1, A1) ⇒ A1): Option[A1]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  71. def reduceRight[B >: T](op: (T, B) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  72. def reduceRightOption[B >: T](op: (T, B) ⇒ B): Option[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  73. def reversed: List[T]
    Attributes
    protected[this]
    Definition Classes
    TraversableOnce
  74. def sameElements(that: Iterator[_]): Boolean
    Definition Classes
    Iterator
  75. def scanLeft[B](z: B)(op: (B, T) ⇒ B): Iterator[B]
    Definition Classes
    Iterator
  76. def scanRight[B](z: B)(op: (T, B) ⇒ B): Iterator[B]
    Definition Classes
    Iterator
  77. def seq: Iterator[T]
    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  78. def size: Int
    Definition Classes
    TraversableOnce → GenTraversableOnce
  79. def sizeHintIfCheap: Int
    Attributes
    protected[scala.collection]
    Definition Classes
    GenTraversableOnce
  80. def slice(from: Int, until: Int): Iterator[T]
    Definition Classes
    Iterator
  81. def sliceIterator(from: Int, until: Int): Iterator[T]
    Attributes
    protected
    Definition Classes
    Iterator
  82. def sliding[B >: T](size: Int, step: Int): GroupedIterator[B]
    Definition Classes
    Iterator
  83. def span(p: (T) ⇒ Boolean): (Iterator[T], Iterator[T])
    Definition Classes
    Iterator
  84. def sum[B >: T](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[T]
    Definition Classes
    Iterator
  87. def takeWhile(p: (T) ⇒ Boolean): Iterator[T]
    Definition Classes
    Iterator
  88. def to[Col[_]](implicit cbf: CanBuildFrom[Nothing, T, Col[T]]): Col[T]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  89. def toArray[B >: T](implicit arg0: ClassTag[B]): Array[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  90. def toBuffer[B >: T]: Buffer[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  91. def toIndexedSeq: immutable.IndexedSeq[T]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  92. def toIterable: Iterable[T]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  93. def toIterator: Iterator[T]
    Definition Classes
    Iterator → GenTraversableOnce
  94. def toList: List[T]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  95. def toMap[T, U](implicit ev: <:<[T, (T, U)]): immutable.Map[T, U]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  96. def toSeq: Seq[T]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  97. def toSet[B >: T]: immutable.Set[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  98. def toStream: immutable.Stream[T]
    Definition Classes
    Iterator → GenTraversableOnce
  99. def toString(): String
    Definition Classes
    Iterator → AnyRef → Any
  100. def toTraversable: Traversable[T]
    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  101. def toVector: Vector[T]
    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: (T) ⇒ Boolean): Iterator[T]
    Definition Classes
    Iterator
  106. def zip[B](that: Iterator[B]): Iterator[(T, B)]
    Definition Classes
    Iterator
  107. def zipAll[B, A1 >: T, B1 >: B](that: Iterator[B], thisElem: A1, thatElem: B1): Iterator[(A1, B1)]
    Definition Classes
    Iterator
  108. def zipWithIndex: Iterator[(T, Int)]
    Definition Classes
    Iterator

Inherited from Splitter[T]

Inherited from Iterator[T]

Inherited from TraversableOnce[T]

Inherited from GenTraversableOnce[T]

Inherited from AnyRef

Inherited from Any

Ungrouped