scala.collection.parallel

ParSeqLike

trait ParSeqLike [+T, +Repr <: ParSeq[T], +Sequential <: Seq[T] with SeqLike[T, Sequential]] extends GenSeqLike[T, Repr] with ParIterableLike[T, Repr, Sequential]

A template trait for sequences of type ParSeq[T], representing parallel sequences with element type T.

Parallel sequences inherit the Seq trait. Their indexing and length computations are defined to be efficient. Like their sequential counterparts they always have a defined order of elements. This means they will produce resulting parallel sequences in the same way sequential sequences do. However, the order in which they perform bulk operations on elements to produce results is not defined and is generally nondeterministic. If the higher-order functions given to them produce no sideeffects, then this won't be noticeable.

This trait defines a new, more general split operation and reimplements the split operation of ParallelIterable trait using the new split operation.

T

the type of the elements contained in this collection

Repr

the type of the actual collection containing the elements

Sequential

the type of the sequential version of this parallel collection

Self Type
ParSeqLike[T, Repr, Sequential]
Source
ParSeqLike.scala
Linear Supertypes
ParIterableLike[T, Repr, Sequential], HasNewCombiner[T, Repr], Parallel, CustomParallelizable[T, Repr], GenSeqLike[T, Repr], Equals, GenIterableLike[T, Repr], GenTraversableLike[T, Repr], Parallelizable[T, Repr], GenTraversableOnce[T], AnyRef, Any
Known Subclasses
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  1. ParSeqLike
  2. ParIterableLike
  3. HasNewCombiner
  4. Parallel
  5. CustomParallelizable
  6. GenSeqLike
  7. Equals
  8. GenIterableLike
  9. GenTraversableLike
  10. Parallelizable
  11. GenTraversableOnce
  12. AnyRef
  13. Any
Visibility
  1. Public
  2. All

Type Members

  1. trait Accessor [R, Tp] extends Accessor[R, Tp]

    Standard accessor task that iterates over the elements of the collection.

  2. class Aggregate [S] extends Accessor[S, Aggregate[S]]

    Attributes
    protected[this]
  3. trait BuilderOps [Elem, To] extends AnyRef

  4. class Collect [S, That] extends Transformer[Combiner[S, That], Collect[S, That]]

    Attributes
    protected[this]
  5. class Composite [FR, SR, R, First <: ParIterableLike.this.StrictSplitterCheckTask[FR, _], Second <: ParIterableLike.this.StrictSplitterCheckTask[SR, _]] extends NonDivisibleTask[R, Composite[FR, SR, R, First, Second]]

    Attributes
    protected[this] abstract
  6. class Copy [U >: T, That] extends Transformer[Combiner[U, That], Copy[U, That]]

    Attributes
    protected
  7. class CopyToArray [U >: T, This >: Repr] extends Accessor[Unit, CopyToArray[U, This]]

    Attributes
    protected[this]
  8. class Corresponds [S] extends Accessor[Boolean, Corresponds[S]]

    Attributes
    protected[this]
  9. class Count extends Accessor[Int, Count]

    Attributes
    protected[this]
  10. class CreateScanTree [U >: T] extends Transformer[ScanTree[U], CreateScanTree[U]]

    Attributes
    protected[this]
  11. class Drop [U >: T, This >: Repr] extends Transformer[Combiner[U, This], Drop[U, This]]

    Attributes
    protected[this]
  12. class Elements extends ParIterator with BufferedIterator[T]

    Used to iterate elements using indices

  13. class Exists extends Accessor[Boolean, Exists]

    Attributes
    protected[this]
  14. class Filter [U >: T, This >: Repr] extends Transformer[Combiner[U, This], Filter[U, This]]

    Attributes
    protected[this]
  15. class FilterNot [U >: T, This >: Repr] extends Transformer[Combiner[U, This], FilterNot[U, This]]

    Attributes
    protected[this]
  16. class Find [U >: T] extends Accessor[Option[U], Find[U]]

    Attributes
    protected[this]
  17. class FlatMap [S, That] extends Transformer[Combiner[S, That], FlatMap[S, That]]

    Attributes
    protected[this]
  18. class Fold [U >: T] extends Accessor[U, Fold[U]]

    Attributes
    protected[this]
  19. class Forall extends Accessor[Boolean, Forall]

    Attributes
    protected[this]
  20. class Foreach [S] extends Accessor[Unit, Foreach[S]]

    Attributes
    protected[this]
  21. class FromScanTree [U >: T, That] extends StrictSplitterCheckTask[Combiner[U, That], FromScanTree[U, That]]

    Attributes
    protected[this]
  22. class GroupBy [K, U >: T] extends Transformer[HashMapCombiner[K, U], GroupBy[K, U]]

    Attributes
    protected[this]
  23. class IndexWhere extends Accessor[Int, IndexWhere]

    Attributes
    protected[this]
  24. class LastIndexWhere extends Accessor[Int, LastIndexWhere]

    Attributes
    protected[this]
  25. class Map [S, That] extends Transformer[Combiner[S, That], Map[S, That]]

    Attributes
    protected[this]
  26. class Max [U >: T] extends Accessor[Option[U], Max[U]]

    Attributes
    protected[this]
  27. class Min [U >: T] extends Accessor[Option[U], Min[U]]

    Attributes
    protected[this]
  28. trait NonDivisible [R] extends NonDivisibleTask[R, NonDivisible[R]]

    Attributes
    protected[this]
  29. trait NonDivisibleTask [R, Tp] extends StrictSplitterCheckTask[R, Tp]

    Attributes
    protected[this]
  30. class ParComposite [FR, SR, R, First <: ParIterableLike.this.StrictSplitterCheckTask[FR, _], Second <: ParIterableLike.this.StrictSplitterCheckTask[SR, _]] extends Composite[FR, SR, R, First, Second]

    Performs two tasks in parallel, and waits for both to finish.

  31. trait ParIterator extends SeqSplitter[T] with ParIterator

    An iterator that can be split into arbitrary subsets of iterators.

  32. class Partition [U >: T, This >: Repr] extends Transformer[(Combiner[U, This], Combiner[U, This]), Partition[U, This]]

    Attributes
    protected[this]
  33. class Product [U >: T] extends Accessor[U, Product[U]]

    Attributes
    protected[this]
  34. class Reduce [U >: T] extends Accessor[Option[U], Reduce[U]]

    Attributes
    protected[this]
  35. class ResultMapping [R, Tp, R1] extends NonDivisibleTask[R1, ResultMapping[R, Tp, R1]]

    Attributes
    protected[this] abstract
  36. class Reverse [U >: T, This >: Repr] extends Transformer[Combiner[U, This], Reverse[U, This]]

    Attributes
    protected[this]
  37. class ReverseMap [S, That] extends Transformer[Combiner[S, That], ReverseMap[S, That]]

    Attributes
    protected[this]
  38. type SSCTask [R, Tp] = StrictSplitterCheckTask[R, Tp]

    Definition Classes
    ParIterableLike
  39. class SameElements [U >: T] extends Accessor[Boolean, SameElements[U]]

    Attributes
    protected[this]
  40. case class ScanLeaf [U >: T] (pit: IterableSplitter[U], op: (U, U) ⇒ U, from: Int, len: Int, prev: Option[ScanLeaf[U]], acc: U) extends ScanTree[U] with Product with Serializable

    Attributes
    protected[this]
  41. case class ScanNode [U >: T] (left: ScanTree[U], right: ScanTree[U]) extends ScanTree[U] with Product with Serializable

    Attributes
    protected[this]
  42. trait ScanTree [U >: T] extends AnyRef

    Attributes
    protected[this]
  43. class SegmentLength extends Accessor[(Int, Boolean), SegmentLength]

    Attributes
    protected[this]
  44. class SeqComposite [FR, SR, R, First <: ParIterableLike.this.StrictSplitterCheckTask[FR, _], Second <: ParIterableLike.this.StrictSplitterCheckTask[SR, _]] extends Composite[FR, SR, R, First, Second]

    Sequentially performs one task after another.

  45. trait SignalContextPassingIterator [+IterRepr <: ParIterator] extends ParIterator with SignalContextPassingIterator[IterRepr]

    A stackable modification that ensures signal contexts get passed along the iterators.

  46. trait SignallingOps [PI <: DelegatedSignalling] extends AnyRef

  47. class Slice [U >: T, This >: Repr] extends Transformer[Combiner[U, This], Slice[U, This]]

    Attributes
    protected[this]
  48. class Span [U >: T, This >: Repr] extends Transformer[(Combiner[U, This], Combiner[U, This]), Span[U, This]]

    Attributes
    protected[this]
  49. class SplitAt [U >: T, This >: Repr] extends Transformer[(Combiner[U, This], Combiner[U, This]), SplitAt[U, This]]

    Attributes
    protected[this]
  50. trait StrictSplitterCheckTask [R, Tp] extends Task[R, Tp]

    Attributes
    protected
  51. class Sum [U >: T] extends Accessor[U, Sum[U]]

    Attributes
    protected[this]
  52. type SuperParIterator = IterableSplitter[T]

  53. class Take [U >: T, This >: Repr] extends Transformer[Combiner[U, This], Take[U, This]]

    Attributes
    protected[this]
  54. class TakeWhile [U >: T, This >: Repr] extends Transformer[(Combiner[U, This], Boolean), TakeWhile[U, This]]

    Attributes
    protected[this]
  55. trait TaskOps [R, Tp] extends AnyRef

  56. class ToParCollection [U >: T, That] extends Transformer[Combiner[U, That], ToParCollection[U, That]]

    Attributes
    protected[this]
  57. class ToParMap [K, V, That] extends Transformer[Combiner[(K, V), That], ToParMap[K, V, That]]

    Attributes
    protected[this]
  58. trait Transformer [R, Tp] extends Accessor[R, Tp] with Transformer[R, Tp]

    Attributes
    protected
    Definition Classes
    ParSeqLikeParIterableLike
  59. class Updated [U >: T, That] extends Transformer[Combiner[U, That], Updated[U, That]]

    Attributes
    protected[this]
  60. class Zip [U >: T, S, That] extends Transformer[Combiner[(U, S), That], Zip[U, S, That]]

    Attributes
    protected[this]
    Definition Classes
    ParSeqLikeParIterableLike
  61. class ZipAll [U >: T, S, That] extends Transformer[Combiner[(U, S), That], ZipAll[U, S, That]]

    Attributes
    protected[this]

Abstract Value Members

  1. def apply (idx: Int): T

    Selects an element by its index in the general sequence.

    Selects an element by its index in the general sequence.

    idx

    The index to select.

    returns

    the element of this general sequence at index idx, where 0 indicates the first element.

    Attributes
    abstract
    Definition Classes
    GenSeqLike
  2. def length : Int

    The length of the general sequence.

    The length of the general sequence.

    Note: will not terminate for infinite-sized collections.

    Note: xs.length and xs.size yield the same result.

    returns

    the number of elements in this general sequence.

    Attributes
    abstract
    Definition Classes
    GenSeqLike
  3. def newCombiner : Combiner[T, Repr]

    Attributes
    protected[this] abstract
    Definition Classes
    HasNewCombiner
  4. def seq : Sequential

    Attributes
    abstract
    Definition Classes
    ParIterableLikeParallelizableGenTraversableOnce
  5. def splitter : SeqSplitter[T]

    A more refined version of the iterator found in the ParallelIterable trait, this iterator can be split into arbitrary subsets of iterators.

    A more refined version of the iterator found in the ParallelIterable trait, this iterator can be split into arbitrary subsets of iterators.

    returns

    an iterator that can be split into subsets of precise size

    Attributes
    protected[parallel] abstract
    Definition Classes
    ParSeqLikeParIterableLike
  6. def stringPrefix : String

    Defines the prefix of this object's toString representation.

    Defines the prefix of this object's toString representation.

    returns

    a string representation which starts the result of toString applied to this general sequence. By default the string prefix is the simple name of the collection class general sequence.

    Attributes
    abstract
    Definition Classes
    GenTraversableLike

Concrete Value Members

  1. def != (arg0: AnyRef): Boolean

    Attributes
    final
    Definition Classes
    AnyRef
  2. def != (arg0: Any): Boolean

    Test two objects for inequality.

    Test two objects for inequality.

    returns

    true if !(this == that), false otherwise.

    Attributes
    final
    Definition Classes
    Any
  3. def ## (): Int

    Equivalent to x.hashCode except for boxed numeric types.

    Equivalent to x.hashCode except for boxed numeric types. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them.

    returns

    a hash value consistent with ==

    Attributes
    final
    Definition Classes
    AnyRef → Any
  4. def ++ [B] (that: GenTraversableOnce[B]): GenSeq[B]

    [use case] Concatenates this general sequence with the elements of a traversable collection.

    [use case]

    Concatenates this general sequence with the elements of a traversable collection.

    B

    the element type of the returned collection.

    that

    the traversable to append.

    returns

    a new collection of type That which contains all elements of this general sequence followed by all elements of that.

    Attributes
    abstract
    Definition Classes
    GenTraversableLike
  5. def ++ [U >: T, That] (that: GenTraversableOnce[U])(implicit bf: CanBuildFrom[Repr, U, That]): That

    Concatenates this general sequence with the elements of a traversable collection.

    Concatenates this general sequence with the elements of a traversable collection.

    That

    the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type B being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, B, That] is found.

    that

    the traversable to append.

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.

    returns

    a new collection of type That which contains all elements of this general sequence followed by all elements of that.

    Definition Classes
    ParIterableLikeGenTraversableLike
  6. def +: (elem: T): GenSeq[T]

    [use case] Prepends an element to this general sequence

    [use case]

    Prepends an element to this general sequence

    elem

    the prepended element

    returns

    a new collection of type That consisting of elem followed by all elements of this general sequence.

    Attributes
    abstract
    Definition Classes
    GenSeqLike
  7. def +: [U >: T, That] (elem: U)(implicit bf: CanBuildFrom[Repr, U, That]): That

    Prepends an element to this general sequence

    Prepends an element to this general sequence

    That

    the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type B being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, B, That] is found.

    elem

    the prepended element

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.

    returns

    a new collection of type That consisting of elem followed by all elements of this general sequence.

    Definition Classes
    ParSeqLikeGenSeqLike
  8. def /: [S] (z: S)(op: (S, T) ⇒ S): S

    Applies a binary operator to a start value and all elements of this general sequence, going left to right.

    Applies a binary operator to a start value and all elements of this general sequence, going left to right.

    Note: /: is alternate syntax for foldLeft; z /: xs is the same as xs foldLeft z.

    Note: will not terminate for infinite-sized collections.

    Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.

    z

    the start value.

    op

    the binary operator.

    returns

    the result of inserting op between consecutive elements of this general sequence, going left to right with the start value z on the left:

                op(...op(op(z, x,,1,,), x,,2,,), ..., x,,n,,)
    

    where x,,1,,, ..., x,,n,, are the elements of this general sequence.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  9. def /:\ [A1 >: T] (z: A1)(op: (A1, A1) ⇒ A1): A1

    A syntactic sugar for out of order folding.

    A syntactic sugar for out of order folding. See fold.

    Definition Classes
    GenTraversableOnce
  10. def :+ (elem: T): GenSeq[T]

    [use case] Appends an element to this general sequence

    [use case]

    Appends an element to this general sequence

    Note: will not terminate for infinite-sized collections.

    elem

    the appended element

    returns

    a new collection of type That consisting of all elements of this general sequence followed by elem.

    Attributes
    abstract
    Definition Classes
    GenSeqLike
  11. def :+ [U >: T, That] (elem: U)(implicit bf: CanBuildFrom[Repr, U, That]): That

    Appends an element to this general sequence

    Appends an element to this general sequence

    Note: will not terminate for infinite-sized collections.

    That

    the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type B being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, B, That] is found.

    elem

    the appended element

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.

    returns

    a new collection of type That consisting of all elements of this general sequence followed by elem.

    Definition Classes
    ParSeqLikeGenSeqLike
  12. def :\ [S] (z: S)(op: (T, S) ⇒ S): S

    Applies a binary operator to all elements of this general sequence and a start value, going right to left.

    Applies a binary operator to all elements of this general sequence and a start value, going right to left.

    Note: :\ is alternate syntax for foldRight; xs :\ z is the same as xs foldRight z.

    Note: will not terminate for infinite-sized collections.

    Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.

    z

    the start value

    op

    the binary operator

    returns

    the result of inserting op between consecutive elements of this general sequence, going right to left with the start value z on the right:

                op(x,,1,,, op(x,,2,,, ... op(x,,n,,, z)...))
    

    where x,,1,,, ..., x,,n,, are the elements of this general sequence.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  13. def == (arg0: AnyRef): Boolean

    Attributes
    final
    Definition Classes
    AnyRef
  14. def == (arg0: Any): Boolean

    Test two objects for equality.

    Test two objects for equality.

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    Attributes
    final
    Definition Classes
    Any
  15. def aggregate [S] (z: S)(seqop: (S, T) ⇒ S, combop: (S, S) ⇒ S): S

    Aggregates the results of applying an operator to subsequent elements.

    Aggregates the results of applying an operator to subsequent elements.

    This is a more general form of fold and reduce. It has similar semantics, but does not require the result to be a supertype of the element type. It traverses the elements in different partitions sequentially, using seqop to update the result, and then applies combop to results from different partitions. The implementation of this operation may operate on an arbitrary number of collection partitions, so combop may be invoked arbitrary number of times.

    For example, one might want to process some elements and then produce a Set. In this case, seqop would process an element and append it to the list, while combop would concatenate two lists from different partitions together. The initial value z would be an empty set.

       pc.aggregate(Set[Int]())(_ += process(_), _ ++ _)
    

    Another example is calculating geometric mean from a collection of doubles (one would typically require big doubles for this).

    S

    the type of accumulated results

    z

    the initial value for the accumulated result of the partition - this will typically be the neutral element for the seqop operator (e.g. Nil for list concatenation or 0 for summation)

    seqop

    an operator used to accumulate results within a partition

    combop

    an associative operator used to combine results from different partitions

    Definition Classes
    ParIterableLikeGenTraversableOnce
  16. def asInstanceOf [T0] : T0

    Cast the receiver object to be of type T0.

    Cast the receiver object to be of type T0.

    Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression 1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expression List(1).asInstanceOf[List[String]] will not. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the requested type.

    returns

    the receiver object.

    Attributes
    final
    Definition Classes
    Any
  17. def bf2seq [S, That] (bf: CanBuildFrom[Repr, S, That]): CanBuildFrom[Sequential, S, That]

    Attributes
    protected[this]
    Definition Classes
    ParIterableLike
  18. implicit def builder2ops [Elem, To] (cb: Builder[Elem, To]): BuilderOps[Elem, To]

    Attributes
    protected implicit
    Definition Classes
    ParIterableLike
  19. def canEqual (other: Any): Boolean

    Definition Classes
    ParIterableLike
  20. def cbfactory : () ⇒ Combiner[T, Repr]

    Attributes
    protected[this]
    Definition Classes
    ParIterableLike
  21. def clone (): AnyRef

    Create a copy of the receiver object.

    Create a copy of the receiver object.

    The default implementation of the clone method is platform dependent.

    returns

    a copy of the receiver object.

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()
  22. def collect [B] (pf: PartialFunction[T, B]): GenSeq[B]

    [use case] Builds a new collection by applying a partial function to all elements of this general sequence on which the function is defined.

    [use case]

    Builds a new collection by applying a partial function to all elements of this general sequence on which the function is defined.

    B

    the element type of the returned collection.

    pf

    the partial function which filters and maps the general sequence.

    returns

    a new collection of type That resulting from applying the partial function pf to each element on which it is defined and collecting the results. The order of the elements is preserved.

    Attributes
    abstract
    Definition Classes
    GenTraversableLike
  23. def collect [S, That] (pf: PartialFunction[T, S])(implicit bf: CanBuildFrom[Repr, S, That]): That

    Builds a new collection by applying a partial function to all elements of this general sequence on which the function is defined.

    Builds a new collection by applying a partial function to all elements of this general sequence on which the function is defined.

    That

    the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type B being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, B, That] is found.

    pf

    the partial function which filters and maps the general sequence.

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.

    returns

    a new collection of type That resulting from applying the partial function pf to each element on which it is defined and collecting the results. The order of the elements is preserved.

    Definition Classes
    ParIterableLikeGenTraversableLike
  24. def copyToArray [U >: T] (xs: Array[U], start: Int, len: Int): Unit

    Definition Classes
    ParIterableLikeGenTraversableOnce
  25. def copyToArray (xs: Array[T], start: Int): Unit

    [use case] Copies values of this general sequence to an array.

    [use case]

    Copies values of this general sequence to an array. Fills the given array xs with values of this general sequence, beginning at index start. Copying will stop once either the end of the current general sequence is reached, or the end of the array is reached.

    xs

    the array to fill.

    start

    the starting index.

    Attributes
    abstract
    Definition Classes
    GenTraversableOnce
  26. def copyToArray [U >: T] (xs: Array[U], start: Int): Unit

    Copies values of this general sequence to an array.

    Copies values of this general sequence to an array. Fills the given array xs with values of this general sequence, beginning at index start. Copying will stop once either the end of the current general sequence is reached, or the end of the array is reached.

    Note: will not terminate for infinite-sized collections.

    xs

    the array to fill.

    start

    the starting index.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  27. def copyToArray (xs: Array[T]): Unit

    [use case] Copies values of this general sequence to an array.

    [use case]

    Copies values of this general sequence to an array. Fills the given array xs with values of this general sequence. Copying will stop once either the end of the current general sequence is reached, or the end of the array is reached.

    xs

    the array to fill.

    Attributes
    abstract
    Definition Classes
    GenTraversableOnce
  28. def copyToArray [U >: T] (xs: Array[U]): Unit

    Copies values of this general sequence to an array.

    Copies values of this general sequence to an array. Fills the given array xs with values of this general sequence. Copying will stop once either the end of the current general sequence is reached, or the end of the array is reached.

    Note: will not terminate for infinite-sized collections.

    xs

    the array to fill.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  29. def corresponds [S] (that: GenSeq[S])(p: (T, S) ⇒ Boolean): Boolean

    Tests whether every element of this general sequence relates to the corresponding element of another parallel sequence by satisfying a test predicate.

    Tests whether every element of this general sequence relates to the corresponding element of another parallel sequence by satisfying a test predicate.

    This method will use abort signalling capabilities. This means that splitters may send and read abort signals.

    S

    the type of the elements of that

    that

    the other parallel sequence

    p

    the test predicate, which relates elements from both sequences

    returns

    true if both parallel sequences have the same length and p(x, y) is true for all corresponding elements x of this general sequence and y of that, otherwise false

    Definition Classes
    ParSeqLikeGenSeqLike
  30. def count (p: (T) ⇒ Boolean): Int

    Counts the number of elements in the general sequence which satisfy a predicate.

    Counts the number of elements in the general sequence which satisfy a predicate.

    p

    the predicate used to test elements.

    returns

    the number of elements satisfying the predicate p.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  31. def debugBuffer : ArrayBuffer[String]

    Definition Classes
    ParIterableLike
  32. implicit def delegatedSignalling2ops [PI <: DelegatedSignalling] (it: PI): SignallingOps[PI]

    Attributes
    protected implicit
    Definition Classes
    ParIterableLike
  33. def diff (that: GenSeq[T]): GenSeq[T]

    [use case] Computes the multiset difference between this general sequence and another sequence.

    [use case]

    Computes the multiset difference between this general sequence and another sequence.

    Note: will not terminate for infinite-sized collections.

    that

    the sequence of elements to remove

    returns

    a new collection of type That which contains all elements of this general sequence except some of occurrences of elements that also appear in that. If an element value x appears n times in that, then the first n occurrences of x will not form part of the result, but any following occurrences will.

    Attributes
    abstract
    Definition Classes
    GenSeqLike
  34. def diff [U >: T] (that: GenSeq[U]): Repr

    Computes the multiset difference between this general sequence and another sequence.

    Computes the multiset difference between this general sequence and another sequence.

    Note: will not terminate for infinite-sized collections.

    that

    the sequence of elements to remove

    returns

    a new collection of type That which contains all elements of this general sequence except some of occurrences of elements that also appear in that. If an element value x appears n times in that, then the first n occurrences of x will not form part of the result, but any following occurrences will.

    Definition Classes
    ParSeqLikeGenSeqLike
  35. def distinct : Repr

    Builds a new general sequence from this general sequence without any duplicate elements.

    Builds a new general sequence from this general sequence without any duplicate elements.

    Note: will not terminate for infinite-sized collections.

    returns

    A new general sequence which contains the first occurrence of every element of this general sequence.

    Definition Classes
    ParSeqLikeGenSeqLike
  36. def down (p: scala.collection.parallel.IterableSplitter[_]): SeqSplitter[T]

    Attributes
    protected[this]
  37. def drop (n: Int): Repr

    Selects all elements except first n ones.

    Selects all elements except first n ones.

    Note: might return different results for different runs, unless the underlying collection type is ordered.

    n

    the number of elements to drop from this general sequence.

    returns

    a general sequence consisting of all elements of this general sequence except the first n ones, or else the empty general sequence, if this general sequence has less than n elements.

    Definition Classes
    ParIterableLikeGenTraversableLike
  38. def dropWhile (pred: (T) ⇒ Boolean): Repr

    Drops all elements in the longest prefix of elements that satisfy the predicate, and returns a collection composed of the remaining elements.

    Drops all elements in the longest prefix of elements that satisfy the predicate, and returns a collection composed of the remaining elements.

    This method will use indexFlag signalling capabilities. This means that splitters may set and read the indexFlag state. The index flag is initially set to maximum integer value.

    pred

    the predicate used to test the elements

    returns

    a collection composed of all the elements after the longest prefix of elements in this general sequence that satisfy the predicate pred

    Definition Classes
    ParIterableLikeGenTraversableLike
  39. def endsWith [S] (that: GenSeq[S]): Boolean

    Tests whether this general sequence ends with the given parallel sequence.

    Tests whether this general sequence ends with the given parallel sequence.

    This method will use abort signalling capabilities. This means that splitters may send and read abort signals.

    S

    the type of the elements of that sequence

    that

    the sequence to test

    returns

    true if this general sequence has that as a suffix, false otherwise

    Definition Classes
    ParSeqLikeGenSeqLike
  40. def eq (arg0: AnyRef): Boolean

    Tests whether the argument (arg0) is a reference to the receiver object (this).

    Tests whether the argument (arg0) is a reference to the receiver object (this).

    The eq method implements an equivalence relation on non-null instances of AnyRef, and has three additional properties:

    • It is consistent: for any non-null instances x and y of type AnyRef, multiple invocations of x.eq(y) consistently returns true or consistently returns false.
    • For any non-null instance x of type AnyRef, x.eq(null) and null.eq(x) returns false.
    • null.eq(null) returns true.

    When overriding the equals or hashCode methods, it is important to ensure that their behavior is consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2), they should be equal to each other (o1 == o2) and they should hash to the same value (o1.hashCode == o2.hashCode).

    returns

    true if the argument is a reference to the receiver object; false otherwise.

    Attributes
    final
    Definition Classes
    AnyRef
  41. def equals (that: Any): Boolean

    The equals method for arbitrary sequences.

    The equals method for arbitrary sequences. Compares this sequence to some other object.

    that

    The object to compare the sequence to

    returns

    true if that is a sequence that has the same elements as this sequence in the same order, false otherwise

    Definition Classes
    GenSeqLikeEquals → AnyRef → Any
  42. def exists (pred: (T) ⇒ Boolean): Boolean

    Tests whether a predicate holds for some element of this general sequence.

    Tests whether a predicate holds for some element of this general sequence.

    This method will use abort signalling capabilities. This means that splitters may send and read abort signals.

    returns

    true if p holds for some element, false otherwise

    Definition Classes
    ParIterableLikeGenTraversableOnce
  43. def filter (pred: (T) ⇒ Boolean): Repr

    Selects all elements of this general sequence which satisfy a predicate.

    Selects all elements of this general sequence which satisfy a predicate.

    returns

    a new general sequence consisting of all elements of this general sequence that satisfy the given predicate p. Their order may not be preserved.

    Definition Classes
    ParIterableLikeGenTraversableLike
  44. def filterNot (pred: (T) ⇒ Boolean): Repr

    Selects all elements of this general sequence which do not satisfy a predicate.

    Selects all elements of this general sequence which do not satisfy a predicate.

    returns

    a new general sequence consisting of all elements of this general sequence that do not satisfy the given predicate p. Their order may not be preserved.

    Definition Classes
    ParIterableLikeGenTraversableLike
  45. def finalize (): Unit

    Called by the garbage collector on the receiver object when there are no more references to the object.

    Called by the garbage collector on the receiver object when there are no more references to the object.

    The details of when and if the finalize method is invoked, as well as the interaction between finalize and non-local returns and exceptions, are all platform dependent.

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()
  46. def find (pred: (T) ⇒ Boolean): Option[T]

    Finds some element in the collection for which the predicate holds, if such an element exists.

    Finds some element in the collection for which the predicate holds, if such an element exists. The element may not necessarily be the first such element in the iteration order.

    If there are multiple elements obeying the predicate, the choice is nondeterministic.

    This method will use abort signalling capabilities. This means that splitters may send and read abort signals.

    returns

    an option value with the element if such an element exists, or None otherwise

    Definition Classes
    ParIterableLikeGenTraversableOnce
  47. def flatMap [B] (f: (T) ⇒ GenTraversableOnce[B]): GenSeq[B]

    [use case] Builds a new collection by applying a function to all elements of this general sequence and concatenating the results.

    [use case]

    Builds a new collection by applying a function to all elements of this general sequence and concatenating the results.

    B

    the element type of the returned collection.

    f

    the function to apply to each element.

    returns

    a new collection of type That resulting from applying the given collection-valued function f to each element of this general sequence and concatenating the results.

    Attributes
    abstract
    Definition Classes
    GenTraversableLike
  48. def flatMap [S, That] (f: (T) ⇒ GenTraversableOnce[S])(implicit bf: CanBuildFrom[Repr, S, That]): That

    Builds a new collection by applying a function to all elements of this general sequence and concatenating the results.

    Builds a new collection by applying a function to all elements of this general sequence and concatenating the results.

    That

    the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type B being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, B, That] is found.

    f

    the function to apply to each element.

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.

    returns

    a new collection of type That resulting from applying the given collection-valued function f to each element of this general sequence and concatenating the results.

    Definition Classes
    ParIterableLikeGenTraversableLike
  49. def fold [U >: T] (z: U)(op: (U, U) ⇒ U): U

    Folds the elements of this sequence using the specified associative binary operator.

    Folds the elements of this sequence using the specified associative binary operator. The order in which the elements are reduced is unspecified and may be nondeterministic.

    Note this method has a different signature than the foldLeft and foldRight methods of the trait Traversable. The result of folding may only be a supertype of this parallel collection's type parameter T.

    U

    a type parameter for the binary operator, a supertype of T.

    z

    a neutral element for the fold operation, it may be added to the result an arbitrary number of times, not changing the result (e.g. Nil for list concatenation, 0 for addition, or 1 for multiplication)

    op

    a binary operator that must be associative

    returns

    the result of applying fold operator op between all the elements and z

    Definition Classes
    ParIterableLikeGenTraversableOnce
  50. def foldLeft [S] (z: S)(op: (S, T) ⇒ S): S

    Applies a binary operator to a start value and all elements of this general sequence, going left to right.

    Applies a binary operator to a start value and all elements of this general sequence, going left to right.

    Note: will not terminate for infinite-sized collections.

    Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.

    z

    the start value.

    op

    the binary operator.

    returns

    the result of inserting op between consecutive elements of this general sequence, going left to right with the start value z on the left:

                op(...op(z, x,,1,,), x,,2,,, ..., x,,n,,)
    

    where x,,1,,, ..., x,,n,, are the elements of this general sequence.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  51. def foldRight [S] (z: S)(op: (T, S) ⇒ S): S

    Applies a binary operator to all elements of this general sequence and a start value, going right to left.

    Applies a binary operator to all elements of this general sequence and a start value, going right to left.

    Note: will not terminate for infinite-sized collections.

    Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.

    z

    the start value.

    op

    the binary operator.

    returns

    the result of inserting op between consecutive elements of this general sequence, going right to left with the start value z on the right:

                op(x,,1,,, op(x,,2,,, ... op(x,,n,,, z)...))
    

    where x,,1,,, ..., x,,n,, are the elements of this general sequence.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  52. def forall (pred: (T) ⇒ Boolean): Boolean

    Tests whether a predicate holds for all elements of this general sequence.

    Tests whether a predicate holds for all elements of this general sequence.

    This method will use abort signalling capabilities. This means that splitters may send and read abort signals.

    returns

    true if p holds for all elements, false otherwise

    Definition Classes
    ParIterableLikeGenTraversableOnce
  53. def foreach [U] (f: (T) ⇒ U): Unit

    Applies a function f to all the elements of general sequence in a sequential order.

    Applies a function f to all the elements of general sequence in a sequential order.

    U

    the result type of the function applied to each element, which is always discarded

    f

    function applied to each element

    Definition Classes
    ParIterableLikeGenTraversableLikeGenTraversableOnce
  54. def getClass (): java.lang.Class[_]

    A representation that corresponds to the dynamic class of the receiver object.

    A representation that corresponds to the dynamic class of the receiver object.

    The nature of the representation is platform dependent.

    returns

    a representation that corresponds to the dynamic class of the receiver object.

    Attributes
    final
    Definition Classes
    AnyRef → Any
  55. def groupBy [K] (f: (T) ⇒ K): ParMap[K, Repr]

    Partitions this general sequence into a map of general sequences according to some discriminator function.

    Partitions this general sequence into a map of general sequences according to some discriminator function.

    Note: this method is not re-implemented by views. This means when applied to a view it will always force the view and return a new general sequence.

    K

    the type of keys returned by the discriminator function.

    f

    the discriminator function.

    returns

    A map from keys to general sequences such that the following invariant holds:

                    (xs partition f)(k) = xs filter (x => f(x) == k)
    

    That is, every key k is bound to a general sequence of those elements x for which f(x) equals k.

    Definition Classes
    ParIterableLikeGenTraversableLike
  56. def hasDefiniteSize : Boolean

    Definition Classes
    ParIterableLikeGenTraversableOnce
  57. def hashCode (): Int

    Hashcodes for GenSeq produce a value from the hashcodes of all the elements of the general sequence.

    Hashcodes for GenSeq produce a value from the hashcodes of all the elements of the general sequence.

    returns

    the hash code value for this object.

    Definition Classes
    GenSeqLike → AnyRef → Any
  58. def head : T

    Definition Classes
    GenIterableLikeGenTraversableLike
  59. def indexOf (elem: T, from: Int): Int

    [use case] Finds index of first occurrence of some value in this general sequence after or at some start index.

    [use case]

    Finds index of first occurrence of some value in this general sequence after or at some start index.

    elem

    the element value to search for.

    from

    the start index

    returns

    the index >= from of the first element of this general sequence that is equal (wrt ==) to elem, or -1, if none exists.

    Attributes
    abstract
    Definition Classes
    GenSeqLike
  60. def indexOf [B >: T] (elem: B, from: Int): Int

    Finds index of first occurrence of some value in this general sequence after or at some start index.

    Finds index of first occurrence of some value in this general sequence after or at some start index.

    Note: may not terminate for infinite-sized collections.

    B

    the type of the element elem.

    elem

    the element value to search for.

    from

    the start index

    returns

    the index >= from of the first element of this general sequence that is equal (wrt ==) to elem, or -1, if none exists.

    Definition Classes
    GenSeqLike
  61. def indexOf (elem: T): Int

    [use case] Finds index of first occurrence of some value in this general sequence.

    [use case]

    Finds index of first occurrence of some value in this general sequence.

    elem

    the element value to search for.

    returns

    the index of the first element of this general sequence that is equal (wrt ==) to elem, or -1, if none exists.

    Attributes
    abstract
    Definition Classes
    GenSeqLike
  62. def indexOf [B >: T] (elem: B): Int

    Finds index of first occurrence of some value in this general sequence.

    Finds index of first occurrence of some value in this general sequence.

    Note: may not terminate for infinite-sized collections.

    B

    the type of the element elem.

    elem

    the element value to search for.

    returns

    the index of the first element of this general sequence that is equal (wrt ==) to elem, or -1, if none exists.

    Definition Classes
    GenSeqLike
  63. def indexWhere (p: (T) ⇒ Boolean, from: Int): Int

    Finds the first element satisfying some predicate.

    Finds the first element satisfying some predicate.

    This method will use indexFlag signalling capabilities. This means that splitters may set and read the indexFlag state.

    The index flag is initially set to maximum integer value.

    p

    the predicate used to test the elements

    from

    the starting offset for the search

    returns

    the index >= from of the first element of this general sequence that satisfies the predicate p, or -1, if none exists

    Definition Classes
    ParSeqLikeGenSeqLike
  64. def indexWhere (p: (T) ⇒ Boolean): Int

    Finds index of first element satisfying some predicate.

    Finds index of first element satisfying some predicate.

    Note: may not terminate for infinite-sized collections.

    p

    the predicate used to test elements.

    returns

    the index of the first element of this general sequence that satisfies the predicate p, or -1, if none exists.

    Definition Classes
    GenSeqLike
  65. def intersect (that: Seq[T]): GenSeq[T]

    [use case] Computes the multiset intersection between this general sequence and another sequence.

    [use case]

    Computes the multiset intersection between this general sequence and another sequence.

    Note: may not terminate for infinite-sized collections.

    that

    the sequence of elements to intersect with.

    returns

    a new collection of type That which contains all elements of this general sequence which also appear in that. If an element value x appears n times in that, then the first n occurrences of x will be retained in the result, but any following occurrences will be omitted.

    Attributes
    abstract
  66. def intersect [U >: T] (that: GenSeq[U]): Repr

    Computes the multiset intersection between this general sequence and another sequence.

    Computes the multiset intersection between this general sequence and another sequence.

    Note: may not terminate for infinite-sized collections.

    that

    the sequence of elements to intersect with.

    returns

    a new collection of type That which contains all elements of this general sequence which also appear in that. If an element value x appears n times in that, then the first n occurrences of x will be retained in the result, but any following occurrences will be omitted.

    Definition Classes
    ParSeqLikeGenSeqLike
  67. def isDefinedAt (idx: Int): Boolean

    Tests whether this general sequence contains given index.

    Tests whether this general sequence contains given index.

    The implementations of methods apply and isDefinedAt turn a Seq[A] into a PartialFunction[Int, A].

    idx

    the index to test

    returns

    true if this general sequence contains an element at position idx, false otherwise.

    Definition Classes
    GenSeqLike
  68. def isEmpty : Boolean

    Tests whether the general sequence is empty.

    Tests whether the general sequence is empty.

    returns

    true if the general sequence contains no elements, false otherwise.

    Definition Classes
    GenIterableLikeGenTraversableOnce
  69. def isInstanceOf [T0] : Boolean

    Test whether the dynamic type of the receiver object is T0.

    Test whether the dynamic type of the receiver object is T0.

    Note that the result of the test is modulo Scala's erasure semantics. Therefore the expression 1.isInstanceOf[String] will return false, while the expression List(1).isInstanceOf[List[String]] will return true. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the specified type.

    returns

    true if the receiver object is an instance of erasure of type T0; false otherwise.

    Attributes
    final
    Definition Classes
    Any
  70. def isStrictSplitterCollection : Boolean

    Denotes whether this parallel collection has strict splitters.

    Denotes whether this parallel collection has strict splitters.

    This is true in general, and specific collection instances may choose to override this method. Such collections will fail to execute methods which rely on splitters being strict, i.e. returning a correct value in the remaining method.

    This method helps ensure that such failures occur on method invocations, rather than later on and in unpredictable ways.

    Definition Classes
    ParIterableLike
  71. def isTraversableAgain : Boolean

    Tests whether this general sequence can be repeatedly traversed.

    Tests whether this general sequence can be repeatedly traversed.

    returns

    true

    Attributes
    final
    Definition Classes
    GenTraversableLikeGenTraversableOnce
  72. def iterator : PreciseSplitter[T]

    Creates a new split iterator used to traverse the elements of this collection.

    Creates a new split iterator used to traverse the elements of this collection.

    By default, this method is implemented in terms of the protected splitter method.

    returns

    a split iterator

    Definition Classes
    ParSeqLikeParIterableLikeGenIterableLike
  73. def lastIndexOf (elem: T, end: Int): Int

    [use case] Finds index of last occurrence of some value in this general sequence before or at a given end index.

    [use case]

    Finds index of last occurrence of some value in this general sequence before or at a given end index.

    elem

    the element value to search for.

    end

    the end index.

    returns

    the index <= end of the last element of this general sequence that is equal (wrt ==) to elem, or -1, if none exists.

    Attributes
    abstract
    Definition Classes
    GenSeqLike
  74. def lastIndexOf [B >: T] (elem: B, end: Int): Int

    Finds index of last occurrence of some value in this general sequence before or at a given end index.

    Finds index of last occurrence of some value in this general sequence before or at a given end index.

    B

    the type of the element elem.

    elem

    the element value to search for.

    end

    the end index.

    returns

    the index <= end of the last element of this general sequence that is equal (wrt ==) to elem, or -1, if none exists.

    Definition Classes
    GenSeqLike
  75. def lastIndexOf (elem: T): Int

    [use case] Finds index of last occurrence of some value in this general sequence.

    [use case]

    Finds index of last occurrence of some value in this general sequence.

    elem

    the element value to search for.

    returns

    the index of the last element of this general sequence that is equal (wrt ==) to elem, or -1, if none exists.

    Attributes
    abstract
    Definition Classes
    GenSeqLike
  76. def lastIndexOf [B >: T] (elem: B): Int

    Finds index of last occurrence of some value in this general sequence.

    Finds index of last occurrence of some value in this general sequence.

    Note: will not terminate for infinite-sized collections.

    B

    the type of the element elem.

    elem

    the element value to search for.

    returns

    the index of the last element of this general sequence that is equal (wrt ==) to elem, or -1, if none exists.

    Definition Classes
    GenSeqLike
  77. def lastIndexWhere (p: (T) ⇒ Boolean, end: Int): Int

    Finds the last element satisfying some predicate.

    Finds the last element satisfying some predicate.

    This method will use indexFlag signalling capabilities. This means that splitters may set and read the indexFlag state.

    The index flag is initially set to minimum integer value.

    p

    the predicate used to test the elements

    end

    the maximum offset for the search

    returns

    the index <= end of the first element of this general sequence that satisfies the predicate p, or -1, if none exists

    Definition Classes
    ParSeqLikeGenSeqLike
  78. def lastIndexWhere (p: (T) ⇒ Boolean): Int

    Finds index of last element satisfying some predicate.

    Finds index of last element satisfying some predicate.

    Note: will not terminate for infinite-sized collections.

    p

    the predicate used to test elements.

    returns

    the index of the last element of this general sequence that satisfies the predicate p, or -1, if none exists.

    Definition Classes
    GenSeqLike
  79. def map [B] (f: (T) ⇒ B): GenSeq[B]

    [use case] Builds a new collection by applying a function to all elements of this general sequence.

    [use case]

    Builds a new collection by applying a function to all elements of this general sequence.

    B

    the element type of the returned collection.

    f

    the function to apply to each element.

    returns

    a new collection of type That resulting from applying the given function f to each element of this general sequence and collecting the results.

    Attributes
    abstract
    Definition Classes
    GenTraversableLike
  80. def map [S, That] (f: (T) ⇒ S)(implicit bf: CanBuildFrom[Repr, S, That]): That

    Builds a new collection by applying a function to all elements of this general sequence.

    Builds a new collection by applying a function to all elements of this general sequence.

    That

    the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type B being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, B, That] is found.

    f

    the function to apply to each element.

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.

    returns

    a new collection of type That resulting from applying the given function f to each element of this general sequence and collecting the results.

    Definition Classes
    ParIterableLikeGenTraversableLike
  81. def max : T

    [use case] Finds the largest element.

    [use case]

    Finds the largest element.

    returns

    the largest element of this general sequence with respect to the ordering cmp.

    Attributes
    abstract
    Definition Classes
    GenTraversableOnce
  82. def max [U >: T] (implicit ord: Ordering[U]): T

    Finds the largest element.

    Finds the largest element.

    returns

    the largest element of this general sequence with respect to the ordering cmp.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  83. def maxBy [S] (f: (T) ⇒ S)(implicit cmp: Ordering[S]): T

    Definition Classes
    ParIterableLikeGenTraversableOnce
  84. def min : T

    [use case] Finds the smallest element.

    [use case]

    Finds the smallest element.

    returns

    the smallest element of this general sequence with respect to the ordering cmp.

    Attributes
    abstract
    Definition Classes
    GenTraversableOnce
  85. def min [U >: T] (implicit ord: Ordering[U]): T

    Finds the smallest element.

    Finds the smallest element.

    returns

    the smallest element of this general sequence with respect to the ordering cmp.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  86. def minBy [S] (f: (T) ⇒ S)(implicit cmp: Ordering[S]): T

    Definition Classes
    ParIterableLikeGenTraversableOnce
  87. def mkString : String

    Displays all elements of this general sequence in a string.

    Displays all elements of this general sequence in a string.

    returns

    a string representation of this general sequence. In the resulting string the string representations (w.r.t. the method toString) of all elements of this general sequence follow each other without any separator string.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  88. def mkString (sep: String): String

    Displays all elements of this general sequence in a string using a separator string.

    Displays all elements of this general sequence in a string using a separator string.

    sep

    the separator string.

    returns

    a string representation of this general sequence. In the resulting string the string representations (w.r.t. the method toString) of all elements of this general sequence are separated by the string sep.

    Definition Classes
    ParIterableLikeGenTraversableOnce
    Example:
    1. List(1, 2, 3).mkString("|") = "1|2|3"

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

    Displays all elements of this general sequence in a string using start, end, and separator strings.

    Displays all elements of this general sequence in a string using start, end, and separator strings.

    start

    the starting string.

    sep

    the separator string.

    end

    the ending string.

    returns

    a string representation of this general sequence. The resulting string begins with the string start and ends with the string end. Inside, the string representations (w.r.t. the method toString) of all elements of this general sequence are separated by the string sep.

    Definition Classes
    ParIterableLikeGenTraversableOnce
    Example:
    1. List(1, 2, 3).mkString("(", "; ", ")") = "(1; 2; 3)"

  90. def ne (arg0: AnyRef): Boolean

    Equivalent to !(this eq that).

    Equivalent to !(this eq that).

    returns

    true if the argument is not a reference to the receiver object; false otherwise.

    Attributes
    final
    Definition Classes
    AnyRef
  91. def nonEmpty : Boolean

    Tests whether the general sequence is not empty.

    Tests whether the general sequence is not empty.

    returns

    true if the general sequence contains at least one element, false otherwise.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  92. def notify (): Unit

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Attributes
    final
    Definition Classes
    AnyRef
  93. def notifyAll (): Unit

    Wakes up all threads that are waiting on the receiver object's monitor.

    Wakes up all threads that are waiting on the receiver object's monitor.

    Attributes
    final
    Definition Classes
    AnyRef
  94. def padTo (len: Int, elem: T): GenSeq[T]

    [use case] Appends an element value to this general sequence until a given target length is reached.

    [use case]

    Appends an element value to this general sequence until a given target length is reached.

    len

    the target length

    elem

    the padding value

    returns

    a new collection of type That consisting of all elements of this general sequence followed by the minimal number of occurrences of elem so that the resulting collection has a length of at least len.

    Attributes
    abstract
    Definition Classes
    GenSeqLike
  95. def padTo [U >: T, That] (len: Int, elem: U)(implicit bf: CanBuildFrom[Repr, U, That]): That

    Appends an element value to this general sequence until a given target length is reached.

    Appends an element value to this general sequence until a given target length is reached.

    That

    the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type B being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, B, That] is found.

    len

    the target length

    elem

    the padding value

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.

    returns

    a new collection of type That consisting of all elements of this general sequence followed by the minimal number of occurrences of elem so that the resulting collection has a length of at least len.

    Definition Classes
    ParSeqLikeGenSeqLike
  96. def par : Repr

    Returns a parallel implementation of this collection.

    Returns a parallel implementation of this collection.

    For most collection types, this method creates a new parallel collection by copying all the elements. For these collection, par takes linear time. Mutable collections in this category do not produce a mutable parallel collection that has the same underlying dataset, so changes in one collection will not be reflected in the other one.

    Specific collections (e.g. ParArray or mutable.ParHashMap) override this default behaviour by creating a parallel collection which shares the same underlying dataset. For these collections, par takes constant or sublinear time.

    All parallel collections return a reference to themselves.

    returns

    a parallel implementation of this collection

    Definition Classes
    ParIterableLikeCustomParallelizableParallelizable
  97. def parCombiner : Combiner[T, Repr]

    The default par implementation uses the combiner provided by this method to create a new parallel collection.

    The default par implementation uses the combiner provided by this method to create a new parallel collection.

    returns

    a combiner for the parallel collection of type ParRepr

    Attributes
    protected[this]
    Definition Classes
    CustomParallelizableParallelizable
  98. def partition (pred: (T) ⇒ Boolean): (Repr, Repr)

    Partitions this general sequence in two general sequences according to a predicate.

    Partitions this general sequence in two general sequences according to a predicate.

    returns

    a pair of general sequences: the first general sequence consists of all elements that satisfy the predicate p and the second general sequence consists of all elements that don't. The relative order of the elements in the resulting general sequences may not be preserved.

    Definition Classes
    ParIterableLikeGenTraversableLike
  99. def patch (from: Int, that: GenSeq[T], replaced: Int): GenSeq[T]

    [use case] Produces a new general sequence where a slice of elements in this general sequence is replaced by another sequence.

    [use case]

    Produces a new general sequence where a slice of elements in this general sequence is replaced by another sequence.

    from

    the index of the first replaced element

    replaced

    the number of elements to drop in the original general sequence

    returns

    a new general sequence consisting of all elements of this general sequence except that replaced elements starting from from are replaced by patch.

    Attributes
    abstract
    Definition Classes
    GenSeqLike
  100. def patch [U >: T, That] (from: Int, patch: GenSeq[U], replaced: Int)(implicit bf: CanBuildFrom[Repr, U, That]): That

    Produces a new general sequence where a slice of elements in this general sequence is replaced by another sequence.

    Produces a new general sequence where a slice of elements in this general sequence is replaced by another sequence.

    That

    the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type B being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, B, That] is found.

    from

    the index of the first replaced element

    patch

    the replacement sequence

    replaced

    the number of elements to drop in the original general sequence

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.

    returns

    a new general sequence consisting of all elements of this general sequence except that replaced elements starting from from are replaced by patch.

    Definition Classes
    ParSeqLikeGenSeqLike
  101. def prefixLength (p: (T) ⇒ Boolean): Int

    Returns the length of the longest prefix whose elements all satisfy some predicate.

    Returns the length of the longest prefix whose elements all satisfy some predicate.

    Note: may not terminate for infinite-sized collections.

    p

    the predicate used to test elements.

    returns

    the length of the longest prefix of this general sequence such that every element of the segment satisfies the predicate p.

    Definition Classes
    GenSeqLike
  102. def product : T

    [use case] Multiplies up the elements of this collection.

    [use case]

    Multiplies up the elements of this collection.

    returns

    the product of all elements of this general sequence with respect to the * operator in num.

    Attributes
    abstract
    Definition Classes
    GenTraversableOnce
  103. def product [U >: T] (implicit num: Numeric[U]): U

    Multiplies up the elements of this collection.

    Multiplies up the elements of this collection.

    num

    an implicit parameter defining a set of numeric operations which includes the * operator to be used in forming the product.

    returns

    the product of all elements of this general sequence with respect to the * operator in num.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  104. def reduce [U >: T] (op: (U, U) ⇒ U): U

    Reduces the elements of this sequence using the specified associative binary operator.

    Reduces the elements of this sequence using the specified associative binary operator.

    The order in which operations are performed on elements is unspecified and may be nondeterministic.

    Note this method has a different signature than the reduceLeft and reduceRight methods of the trait Traversable. The result of reducing may only be a supertype of this parallel collection's type parameter T.

    U

    A type parameter for the binary operator, a supertype of T.

    op

    A binary operator that must be associative.

    returns

    The result of applying reduce operator op between all the elements if the collection is nonempty.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  105. def reduceLeft [U >: T] (op: (U, T) ⇒ U): U

    Definition Classes
    ParIterableLike
  106. def reduceLeftOption [U >: T] (op: (U, T) ⇒ U): Option[U]

    Optionally applies a binary operator to all elements of this general sequence, going left to right.

    Optionally applies a binary operator to all elements of this general sequence, going left to right.

    Note: will not terminate for infinite-sized collections.

    Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.

    op

    the binary operator.

    returns

    an option value containing the result of reduceLeft(op) is this general sequence is nonempty, None otherwise.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  107. def reduceOption [U >: T] (op: (U, U) ⇒ U): Option[U]

    Optionally reduces the elements of this sequence using the specified associative binary operator.

    Optionally reduces the elements of this sequence using the specified associative binary operator.

    The order in which operations are performed on elements is unspecified and may be nondeterministic.

    Note this method has a different signature than the reduceLeftOption and reduceRightOption methods of the trait Traversable. The result of reducing may only be a supertype of this parallel collection's type parameter T.

    U

    A type parameter for the binary operator, a supertype of T.

    op

    A binary operator that must be associative.

    returns

    An option value containing result of applying reduce operator op between all the elements if the collection is nonempty, and None otherwise.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  108. def reduceRight [U >: T] (op: (T, U) ⇒ U): U

    Applies a binary operator to all elements of this general sequence, going right to left.

    Applies a binary operator to all elements of this general sequence, going right to left.

    Note: will not terminate for infinite-sized collections.

    Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.

    op

    the binary operator.

    returns

    the result of inserting op between consecutive elements of this general sequence, going right to left:

                op(x,,1,,, op(x,,2,,, ..., op(x,,n-1,,, x,,n,,)...))
    

    where x,,1,,, ..., x,,n,, are the elements of this general sequence.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  109. def reduceRightOption [U >: T] (op: (T, U) ⇒ U): Option[U]

    Optionally applies a binary operator to all elements of this general sequence, going right to left.

    Optionally applies a binary operator to all elements of this general sequence, going right to left.

    Note: will not terminate for infinite-sized collections.

    Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.

    op

    the binary operator.

    returns

    an option value containing the result of reduceRight(op) is this general sequence is nonempty, None otherwise.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  110. def repr : Repr

    Definition Classes
    ParIterableLikeGenTraversableLike
  111. def reuse [S, That] (oldc: Option[Combiner[S, That]], newc: Combiner[S, That]): Combiner[S, That]

    Optionally reuses an existing combiner for better performance.

    Optionally reuses an existing combiner for better performance. By default it doesn't - subclasses may override this behaviour. The provided combiner oldc that can potentially be reused will be either some combiner from the previous computational task, or None if there was no previous phase (in which case this method must return newc).

    oldc

    The combiner that is the result of the previous task, or None if there was no previous task.

    newc

    The new, empty combiner that can be used.

    returns

    Either newc or oldc.

    Attributes
    protected
    Definition Classes
    ParIterableLike
  112. def reverse : Repr

    Returns new general sequence wih elements in reversed order.

    Returns new general sequence wih elements in reversed order.

    Note: will not terminate for infinite-sized collections.

    returns

    A new general sequence with all elements of this general sequence in reversed order.

    Definition Classes
    ParSeqLikeGenSeqLike
  113. def reverseMap [B] (f: (T) ⇒ B): GenSeq[B]

    [use case] Builds a new collection by applying a function to all elements of this general sequence and collecting the results in reversed order.

    [use case]

    Builds a new collection by applying a function to all elements of this general sequence and collecting the results in reversed order.

    B

    the element type of the returned collection.

    f

    the function to apply to each element.

    returns

    a new collection of type That resulting from applying the given function f to each element of this general sequence and collecting the results in reversed order.

    Note: xs.reverseMap(f) is the same as xs.reverse.map(f) but might be more efficient.

    Attributes
    abstract
    Definition Classes
    GenSeqLike
  114. def reverseMap [S, That] (f: (T) ⇒ S)(implicit bf: CanBuildFrom[Repr, S, That]): That

    Builds a new collection by applying a function to all elements of this general sequence and collecting the results in reversed order.

    Builds a new collection by applying a function to all elements of this general sequence and collecting the results in reversed order.

    Note: will not terminate for infinite-sized collections.

    Note: xs.reverseMap(f) is the same as xs.reverse.map(f) but might be more efficient.

    That

    the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type B being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, B, That] is found.

    f

    the function to apply to each element.

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.

    returns

    a new collection of type That resulting from applying the given function f to each element of this general sequence and collecting the results in reversed order.

    Definition Classes
    ParSeqLikeGenSeqLike
  115. def sameElements (that: GenIterable[T]): Boolean

    [use case] Checks if the other iterable collection contains the same elements in the same order as this general sequence.

    [use case]

    Checks if the other iterable collection contains the same elements in the same order as this general sequence.

    that

    the collection to compare with.

    returns

    true, if both collections contain the same elements in the same order, false otherwise.

    Attributes
    abstract
    Definition Classes
    GenIterableLike
  116. def sameElements [U >: T] (that: GenIterable[U]): Boolean

    Checks if the other iterable collection contains the same elements in the same order as this general sequence.

    Checks if the other iterable collection contains the same elements in the same order as this general sequence.

    Note: might return different results for different runs, unless the underlying collection type is ordered.

    Note: will not terminate for infinite-sized collections.

    that

    the collection to compare with.

    returns

    true, if both collections contain the same elements in the same order, false otherwise.

    Definition Classes
    ParSeqLikeParIterableLikeGenIterableLike
  117. def scan (z: T)(op: (T, T) ⇒ T): GenSeq[T]

    [use case] Computes a prefix scan of the elements of the collection.

    [use case]

    Computes a prefix scan of the elements of the collection.

    z

    neutral element for the operator op

    op

    the associative operator for the scan

    returns

    a collection containing the prefix scan of the elements in the original collection

    Attributes
    abstract
    Definition Classes
    ParIterableLike
  118. def scan [U >: T, That] (z: U)(op: (U, U) ⇒ U)(implicit bf: CanBuildFrom[Repr, U, That]): That

    Computes a prefix scan of the elements of the collection.

    Computes a prefix scan of the elements of the collection.

    Note: The neutral element z may be applied more than once.

    U

    element type of the resulting collection

    That

    type of the resulting collection

    z

    neutral element for the operator op

    op

    the associative operator for the scan

    returns

    a collection containing the prefix scan of the elements in the original collection

    Definition Classes
    ParIterableLikeGenTraversableLike
  119. def scanBlockSize : Int

    Attributes
    protected[this]
    Definition Classes
    ParIterableLike
  120. def scanLeft [S, That] (z: S)(op: (S, T) ⇒ S)(implicit bf: CanBuildFrom[Repr, S, That]): That

    Produces a collection containing cummulative results of applying the operator going left to right.

    Produces a collection containing cummulative results of applying the operator going left to right.

    Note: will not terminate for infinite-sized collections.

    Note: might return different results for different runs, unless the underlying collection type is ordered.

    That

    the actual type of the resulting collection

    z

    the initial value

    op

    the binary operator applied to the intermediate result and the element

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.

    returns

    collection with intermediate results

    Definition Classes
    ParIterableLikeGenTraversableLike
  121. def scanRight [S, That] (z: S)(op: (T, S) ⇒ S)(implicit bf: CanBuildFrom[Repr, S, That]): That

    Produces a collection containing cummulative results of applying the operator going right to left.

    Produces a collection containing cummulative results of applying the operator going right to left. The head of the collection is the last cummulative result.

    Note: will not terminate for infinite-sized collections.

    Note: might return different results for different runs, unless the underlying collection type is ordered.

    Example:

       List(1, 2, 3, 4).scanRight(0)(_ + _) == List(10, 9, 7, 4, 0)
    
    That

    the actual type of the resulting collection

    z

    the initial value

    op

    the binary operator applied to the intermediate result and the element

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.

    returns

    collection with intermediate results

    Definition Classes
    ParIterableLikeGenTraversableLike
  122. def segmentLength (p: (T) ⇒ Boolean, from: Int): Int

    Returns the length of the longest segment of elements starting at a given position satisfying some predicate.

    Returns the length of the longest segment of elements starting at a given position satisfying some predicate.

    This method will use indexFlag signalling capabilities. This means that splitters may set and read the indexFlag state.

    The index flag is initially set to maximum integer value.

    p

    the predicate used to test the elements

    from

    the starting offset for the search

    returns

    the length of the longest segment of elements starting at from and satisfying the predicate

    Definition Classes
    ParSeqLikeGenSeqLike
  123. def sequentially [S, That <: Parallel] (b: (Sequential) ⇒ Parallelizable[S, That]): Repr

    Attributes
    protected[this]
    Definition Classes
    ParIterableLike
  124. def size : Int

    The size of this general sequence.

    The size of this general sequence.

    Note: will not terminate for infinite-sized collections.

    returns

    the number of elements in this general sequence.

    Definition Classes
    ParSeqLikeGenTraversableLikeGenTraversableOnce
  125. def slice (unc_from: Int, unc_until: Int): Repr

    Selects an interval of elements.

    Selects an interval of elements. The returned collection is made up of all elements x which satisfy the invariant:

       from <= indexOf(x) < until
    

    Note: might return different results for different runs, unless the underlying collection type is ordered.

    returns

    a general sequence containing the elements greater than or equal to index from extending up to (but not including) index until of this general sequence.

    Definition Classes
    ParIterableLikeGenTraversableLike
  126. def span (pred: (T) ⇒ Boolean): (Repr, Repr)

    Splits this general sequence into a prefix/suffix pair according to a predicate.

    Splits this general sequence into a prefix/suffix pair according to a predicate.

    This method will use indexFlag signalling capabilities. This means that splitters may set and read the indexFlag state. The index flag is initially set to maximum integer value.

    pred

    the predicate used to test the elements

    returns

    a pair consisting of the longest prefix of the collection for which all the elements satisfy pred, and the rest of the collection

    Definition Classes
    ParIterableLikeGenTraversableLike
  127. def splitAt (n: Int): (Repr, Repr)

    Splits this general sequence into two at a given position.

    Splits this general sequence into two at a given position. Note: c splitAt n is equivalent to (but possibly more efficient than) (c take n, c drop n).

    Note: might return different results for different runs, unless the underlying collection type is ordered.

    n

    the position at which to split.

    returns

    a pair of general sequences consisting of the first n elements of this general sequence, and the other elements.

    Definition Classes
    ParIterableLikeGenTraversableLike
  128. def startsWith [S] (that: GenSeq[S], offset: Int): Boolean

    Tests whether this general sequence contains the given sequence at a given index.

    Tests whether this general sequence contains the given sequence at a given index.

    This method will use abort signalling capabilities. This means that splitters may send and read abort signals.

    that

    the parallel sequence this sequence is being searched for

    offset

    the starting offset for the search

    returns

    true if there is a sequence that starting at offset in this sequence, false otherwise

    Definition Classes
    ParSeqLikeGenSeqLike
  129. def startsWith [B] (that: Seq[B]): Boolean

    Definition Classes
    GenSeqLike
    Annotations
    @bridge()
  130. def startsWith [B] (that: GenSeq[B]): Boolean

    Tests whether this general sequence starts with the given sequence.

    Tests whether this general sequence starts with the given sequence.

    that

    the sequence to test

    returns

    true if this collection has that as a prefix, false otherwise.

    Definition Classes
    GenSeqLike
  131. def sum : T

    [use case] Sums up the elements of this collection.

    [use case]

    Sums up the elements of this collection.

    returns

    the sum of all elements of this general sequence with respect to the + operator in num.

    Attributes
    abstract
    Definition Classes
    GenTraversableOnce
  132. def sum [U >: T] (implicit num: Numeric[U]): U

    Sums up the elements of this collection.

    Sums up the elements of this collection.

    num

    an implicit parameter defining a set of numeric operations which includes the + operator to be used in forming the sum.

    returns

    the sum of all elements of this general sequence with respect to the + operator in num.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  133. def synchronized [T0] (arg0: ⇒ T0): T0

    Attributes
    final
    Definition Classes
    AnyRef
  134. def tail : Repr

    Selects all elements except the first.

    Selects all elements except the first.

    Note: might return different results for different runs, unless the underlying collection type is ordered.

    returns

    a general sequence consisting of all elements of this general sequence except the first one.

    Definition Classes
    GenTraversableLike
  135. def take (n: Int): Repr

    Selects first n elements.

    Selects first n elements.

    Note: might return different results for different runs, unless the underlying collection type is ordered.

    n

    Tt number of elements to take from this general sequence.

    returns

    a general sequence consisting only of the first n elements of this general sequence, or else the whole general sequence, if it has less than n elements.

    Definition Classes
    ParIterableLikeGenTraversableLike
  136. def takeWhile (pred: (T) ⇒ Boolean): Repr

    Takes the longest prefix of elements that satisfy the predicate.

    Takes the longest prefix of elements that satisfy the predicate.

    This method will use indexFlag signalling capabilities. This means that splitters may set and read the indexFlag state. The index flag is initially set to maximum integer value.

    pred

    the predicate used to test the elements

    returns

    the longest prefix of this general sequence of elements that satisy the predicate pred

    Definition Classes
    ParIterableLikeGenTraversableLike
  137. implicit def task2ops [R, Tp] (tsk: SSCTask[R, Tp]): TaskOps[R, Tp]

    Attributes
    protected implicit
    Definition Classes
    ParIterableLike
  138. def threshold (sz: Int, p: Int): Int

    Some minimal number of elements after which this collection should be handled sequentially by different processors.

    Some minimal number of elements after which this collection should be handled sequentially by different processors.

    This method depends on the size of the collection and the parallelism level, which are both specified as arguments.

    sz

    the size based on which to compute the threshold

    p

    the parallelism level based on which to compute the threshold

    returns

    the maximum number of elements for performing operations sequentially

    Definition Classes
    ParIterableLike
  139. def toArray : Array[T]

    [use case] Converts this general sequence to an array.

    [use case]

    Converts this general sequence to an array.

    Note: will not terminate for infinite-sized collections.

    returns

    an array containing all elements of this general sequence.

    Attributes
    abstract
    Definition Classes
    GenTraversableOnce
  140. def toArray [U >: T] (implicit arg0: ClassManifest[U]): Array[U]

    Converts this general sequence to an array.

    Converts this general sequence to an array.

    Note: will not terminate for infinite-sized collections.

    returns

    an array containing all elements of this general sequence.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  141. def toBuffer [U >: T] : Buffer[U]

    Converts this general sequence to a mutable buffer.

    Converts this general sequence to a mutable buffer.

    Note: will not terminate for infinite-sized collections.

    returns

    a buffer containing all elements of this general sequence.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  142. def toIndexedSeq [U >: T] : IndexedSeq[U]

    Converts this general sequence to an indexed sequence.

    Converts this general sequence to an indexed sequence.

    Note: will not terminate for infinite-sized collections.

    returns

    an indexed sequence containing all elements of this general sequence.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  143. def toIterable : ParIterable[T]

    Converts this general sequence to an iterable collection.

    Converts this general sequence to an iterable collection. Note that the choice of target Iterable is lazy in this default implementation as this TraversableOnce may be lazy and unevaluated (i.e. it may be an iterator which is only traversable once).

    Note: will not terminate for infinite-sized collections.

    returns

    an Iterable containing all elements of this general sequence.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  144. def toIterator : Iterator[T]

    Returns an Iterator over the elements in this general sequence.

    Returns an Iterator over the elements in this general sequence. Will return the same Iterator if this instance is already an Iterator.

    Note: will not terminate for infinite-sized collections.

    returns

    an Iterator containing all elements of this general sequence.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  145. def toList : List[T]

    Converts this general sequence to a list.

    Converts this general sequence to a list.

    Note: will not terminate for infinite-sized collections.

    returns

    a list containing all elements of this general sequence.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  146. def toMap [T, U] : Map[T, U]

    [use case] Converts this general sequence to a map.

    [use case]

    Converts this general sequence to a map. This method is unavailable unless the elements are members of Tuple2, each ((T, U)) becoming a key-value pair in the map. Duplicate keys will be overwritten by later keys: if this is an unordered collection, which key is in the resulting map is undefined.

    Note: will not terminate for infinite-sized collections.

    returns

    a map containing all elements of this general sequence.

    Attributes
    abstract
    Definition Classes
    GenTraversableOnce
  147. def toMap [K, V] (implicit ev: <:<[T, (K, V)]): ParMap[K, V]

    Converts this general sequence to a map.

    Converts this general sequence to a map. This method is unavailable unless the elements are members of Tuple2, each ((T, U)) becoming a key-value pair in the map. Duplicate keys will be overwritten by later keys: if this is an unordered collection, which key is in the resulting map is undefined.

    Note: will not terminate for infinite-sized collections.

    returns

    a map containing all elements of this general sequence.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  148. def toParCollection [U >: T, That] (cbf: () ⇒ Combiner[U, That]): That

    Attributes
    protected
    Definition Classes
    ParIterableLike
  149. def toParMap [K, V, That] (cbf: () ⇒ Combiner[(K, V), That])(implicit ev: <:<[T, (K, V)]): That

    Attributes
    protected
    Definition Classes
    ParIterableLike
  150. def toSeq : ParSeq[T]

    Converts this general sequence to a sequence.

    Converts this general sequence to a sequence. As with toIterable, it's lazy in this default implementation, as this TraversableOnce may be lazy and unevaluated.

    Note: will not terminate for infinite-sized collections.

    returns

    a sequence containing all elements of this general sequence.

    Definition Classes
    ParSeqLikeParIterableLikeGenSeqLikeGenTraversableOnce
  151. def toSet [U >: T] : ParSet[U]

    Converts this general sequence to a set.

    Converts this general sequence to a set.

    Note: will not terminate for infinite-sized collections.

    returns

    a set containing all elements of this general sequence.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  152. def toStream : Stream[T]

    Converts this general sequence to a stream.

    Converts this general sequence to a stream.

    Note: will not terminate for infinite-sized collections.

    returns

    a stream containing all elements of this general sequence.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  153. def toString (): String

    Creates a String representation of this object.

    Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.

    returns

    a String representation of the object.

    Definition Classes
    ParSeqLikeParIterableLike → AnyRef → Any
  154. def toTraversable : GenTraversable[T]

    Converts this general sequence to an unspecified Traversable.

    Converts this general sequence to an unspecified Traversable. Will return the same collection if this instance is already Traversable.

    Note: will not terminate for infinite-sized collections.

    returns

    a Traversable containing all elements of this general sequence.

    Definition Classes
    ParIterableLikeGenTraversableOnce
  155. def union [B >: T, That] (that: Seq[B])(implicit bf: CanBuildFrom[Repr, B, That]): That

    Definition Classes
    GenSeqLike
    Annotations
    @bridge()
  156. def union (that: GenSeq[T]): GenSeq[T]

    [use case] Produces a new sequence which contains all elements of this general sequence and also all elements of a given sequence.

    [use case]

    Produces a new sequence which contains all elements of this general sequence and also all elements of a given sequence. xs union ys is equivalent to xs ++ ys.

    Note: will not terminate for infinite-sized collections.

    that

    the sequence to add.

    returns

    a new collection of type That which contains all elements of this general sequence followed by all elements of that.

    Attributes
    abstract
    Definition Classes
    GenSeqLike
  157. def union [B >: T, That] (that: GenSeq[B])(implicit bf: CanBuildFrom[Repr, B, That]): That

    Produces a new sequence which contains all elements of this general sequence and also all elements of a given sequence.

    Produces a new sequence which contains all elements of this general sequence and also all elements of a given sequence. xs union ys is equivalent to xs ++ ys.

    Note: will not terminate for infinite-sized collections.

    Another way to express this is that xs union ys computes the order-presevring multi-set union of xs and ys. union is hence a counter-part of diff and intersect which also work on multi-sets.

    Note: will not terminate for infinite-sized collections.

    B

    the element type of the returned general sequence.

    That

    the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type B being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, B, That] is found.

    that

    the sequence to add.

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.

    returns

    a new collection of type That which contains all elements of this general sequence followed by all elements of that.

    Definition Classes
    GenSeqLike
  158. def updated (index: Int, elem: T): GenSeq[T]

    [use case] A copy of this general sequence with one single replaced element.

    [use case]

    A copy of this general sequence with one single replaced element.

    index

    the position of the replacement

    elem

    the replacing element

    returns

    a new general sequence which is a copy of this general sequence with the element at position index replaced by elem.

    Attributes
    abstract
    Definition Classes
    GenSeqLike
  159. def updated [U >: T, That] (index: Int, elem: U)(implicit bf: CanBuildFrom[Repr, U, That]): That

    A copy of this general sequence with one single replaced element.

    A copy of this general sequence with one single replaced element.

    That

    the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type B being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, B, That] is found.

    index

    the position of the replacement

    elem

    the replacing element

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and and the new element type B.

    returns

    a new general sequence which is a copy of this general sequence with the element at position index replaced by elem.

    Definition Classes
    ParSeqLikeGenSeqLike
  160. def view : ParSeqView[T, Repr, Sequential]

    Definition Classes
    ParSeqLikeParIterableLike
  161. def wait (): Unit

    Attributes
    final
    Definition Classes
    AnyRef
    Annotations
    @throws()
  162. def wait (arg0: Long, arg1: Int): Unit

    Attributes
    final
    Definition Classes
    AnyRef
    Annotations
    @throws()
  163. def wait (arg0: Long): Unit

    Attributes
    final
    Definition Classes
    AnyRef
    Annotations
    @throws()
  164. def wrap [R] (body: ⇒ R): NonDivisible[R]

    Attributes
    protected
    Definition Classes
    ParIterableLike
  165. def zip [B] (that: GenIterable[B]): GenSeq[(T, B)]

    [use case] Returns a general sequence formed from this general sequence and another iterable collection by combining corresponding elements in pairs.

    [use case]

    Returns a general sequence formed from this general sequence and another iterable collection by combining corresponding elements in pairs. If one of the two collections is longer than the other, its remaining elements are ignored.

    B

    the type of the second half of the returned pairs

    that

    The iterable providing the second half of each result pair

    returns

    a new collection of type That containing pairs consisting of corresponding elements of this general sequence and that. The length of the returned collection is the minimum of the lengths of this general sequence and that.

    Attributes
    abstract
    Definition Classes
    GenIterableLike
  166. def zip [U >: T, S, That] (that: GenIterable[S])(implicit bf: CanBuildFrom[Repr, (U, S), That]): That

    Returns a general sequence formed from this general sequence and another iterable collection by combining corresponding elements in pairs.

    Returns a general sequence formed from this general sequence and another iterable collection by combining corresponding elements in pairs. If one of the two collections is longer than the other, its remaining elements are ignored.

    Note: might return different results for different runs, unless the underlying collection type is ordered.

    That

    the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type (A1, B) being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, (A1, B), That]. is found.

    that

    The iterable providing the second half of each result pair

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and the new element type (A1, B).

    returns

    a new collection of type That containing pairs consisting of corresponding elements of this general sequence and that. The length of the returned collection is the minimum of the lengths of this general sequence and that.

    Definition Classes
    ParSeqLikeParIterableLikeGenIterableLike
  167. def zipAll [B] (that: Iterable[B], thisElem: T, thatElem: B): GenSeq[(T, B)]

    [use case] Returns a general sequence formed from this general sequence and another iterable collection by combining corresponding elements in pairs.

    [use case]

    Returns a general sequence formed from this general sequence and another iterable collection by combining corresponding elements in pairs. If one of the two collections is shorter than the other, placeholder elements are used to extend the shorter collection to the length of the longer.

    that

    the iterable providing the second half of each result pair

    thisElem

    the element to be used to fill up the result if this general sequence is shorter than that.

    thatElem

    the element to be used to fill up the result if that is shorter than this general sequence.

    returns

    a new collection of type That containing pairs consisting of corresponding elements of this general sequence and that. The length of the returned collection is the maximum of the lengths of this general sequence and that. If this general sequence is shorter than that, thisElem values are used to pad the result. If that is shorter than this general sequence, thatElem values are used to pad the result.

    Attributes
    abstract
    Definition Classes
    GenIterableLike
  168. def zipAll [S, U >: T, That] (that: GenIterable[S], thisElem: U, thatElem: S)(implicit bf: CanBuildFrom[Repr, (U, S), That]): That

    Returns a general sequence formed from this general sequence and another iterable collection by combining corresponding elements in pairs.

    Returns a general sequence formed from this general sequence and another iterable collection by combining corresponding elements in pairs. If one of the two collections is shorter than the other, placeholder elements are used to extend the shorter collection to the length of the longer.

    Note: might return different results for different runs, unless the underlying collection type is ordered.

    that

    the iterable providing the second half of each result pair

    thisElem

    the element to be used to fill up the result if this general sequence is shorter than that.

    thatElem

    the element to be used to fill up the result if that is shorter than this general sequence.

    returns

    a new collection of type That containing pairs consisting of corresponding elements of this general sequence and that. The length of the returned collection is the maximum of the lengths of this general sequence and that. If this general sequence is shorter than that, thisElem values are used to pad the result. If that is shorter than this general sequence, thatElem values are used to pad the result.

    Definition Classes
    ParIterableLikeGenIterableLike
  169. def zipWithIndex : GenSeq[(T, Int)]

    [use case] Zips this general sequence with its indices.

    [use case]

    Zips this general sequence with its indices.

    returns

    A new collection of type That containing pairs consisting of all elements of this general sequence paired with their index. Indices start at 0.

    Attributes
    abstract
    Definition Classes
    GenIterableLike
  170. def zipWithIndex [U >: T, That] (implicit bf: CanBuildFrom[Repr, (U, Int), That]): That

    Zips this general sequence with its indices.

    Zips this general sequence with its indices.

    Note: might return different results for different runs, unless the underlying collection type is ordered.

    That

    the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type (A1, Int) being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, (A1, Int), That]. is found.

    returns

    A new collection of type That containing pairs consisting of all elements of this general sequence paired with their index. Indices start at 0.

    Definition Classes
    ParIterableLikeGenIterableLike

Inherited from ParIterableLike[T, Repr, Sequential]

Inherited from HasNewCombiner[T, Repr]

Inherited from Parallel

Inherited from CustomParallelizable[T, Repr]

Inherited from GenSeqLike[T, Repr]

Inherited from Equals

Inherited from GenIterableLike[T, Repr]

Inherited from GenTraversableLike[T, Repr]

Inherited from Parallelizable[T, Repr]

Inherited from GenTraversableOnce[T]

Inherited from AnyRef

Inherited from Any