scala.collection.parallel.ParSeqLike

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Type Members

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

Standard accessor task that iterates over the elements of the collection.
class Aggregate [S] extends Accessor[S, Aggregate[S]]

Attributes
protected[this]
trait BuilderOps [Elem, To] extends AnyRef
class Collect [S, That] extends Transformer[Combiner[S, That], Collect[S, That]]

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

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

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

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

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

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

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

Used to iterate elements using indices
class Exists extends Accessor[Boolean, Exists]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Attributes
protected[this]
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.
trait ParIterator extends SeqSplitter[T] with ParIterator

An iterator that can be split into arbitrary subsets of iterators.
class Partition [U >: T, This >: Repr] extends Transformer[(Combiner[U, This], Combiner[U, This]), Partition[U, This]]

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

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

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

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

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

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

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

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

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

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

Attributes
protected[this]
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.
trait SignalContextPassingIterator [+IterRepr <: ParIterator] extends ParIterator with SignalContextPassingIterator[IterRepr]

A stackable modification that ensures signal contexts get passed along the iterators.
trait SignallingOps [PI <: DelegatedSignalling] extends AnyRef
class Slice [U >: T, This >: Repr] extends Transformer[Combiner[U, This], Slice[U, This]]

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

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

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

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

Attributes
protected[this]
type SuperParIterator = IterableSplitter[T]
class Take [U >: T, This >: Repr] extends Transformer[Combiner[U, This], Take[U, This]]

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

Attributes
protected[this]
trait TaskOps [R, Tp] extends AnyRef
class ToParCollection [U >: T, That] extends Transformer[Combiner[U, That], ToParCollection[U, That]]

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

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

Attributes
protected
Definition Classes
ParSeqLike → ParIterableLike
class Updated [U >: T, That] extends Transformer[Combiner[U, That], Updated[U, That]]

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

Attributes
protected[this]
Definition Classes
ParSeqLike → ParIterableLike
class ZipAll [U >: T, S, That] extends Transformer[Combiner[(U, S), That], ZipAll[U, S, That]]

Attributes
protected[this]

Abstract Value Members

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
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
def newCombiner : Combiner[T, Repr]

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

Attributes
abstract
Definition Classes
ParIterableLike → Parallelizable → GenTraversableOnce
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
ParSeqLike → ParIterableLike
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

def != (arg0: AnyRef): Boolean

Attributes
final
Definition Classes
AnyRef
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
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
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
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
ParIterableLike → GenTraversableLike
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
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
ParSeqLike → GenSeqLike
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
ParIterableLike → GenTraversableOnce
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
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
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
ParSeqLike → GenSeqLike
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
ParIterableLike → GenTraversableOnce
def == (arg0: AnyRef): Boolean

Attributes
final
Definition Classes
AnyRef
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
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
ParIterableLike → GenTraversableOnce
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
def bf2seq [S, That] (bf: CanBuildFrom[Repr, S, That]): CanBuildFrom[Sequential, S, That]

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

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

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

Attributes
protected[this]
Definition Classes
ParIterableLike
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()
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
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
ParIterableLike → GenTraversableLike
def copyToArray [U >: T] (xs: Array[U], start: Int, len: Int): Unit

Definition Classes
ParIterableLike → GenTraversableOnce
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
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
ParIterableLike → GenTraversableOnce
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
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
ParIterableLike → GenTraversableOnce
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
ParSeqLike → GenSeqLike
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
ParIterableLike → GenTraversableOnce
def debugBuffer : ArrayBuffer[String]

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

Attributes
protected implicit
Definition Classes
ParIterableLike
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
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
ParSeqLike → GenSeqLike
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
ParSeqLike → GenSeqLike
def down (p: scala.collection.parallel.IterableSplitter[_]): SeqSplitter[T]

Attributes
protected[this]
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
ParIterableLike → GenTraversableLike
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
ParIterableLike → GenTraversableLike
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
ParSeqLike → GenSeqLike
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
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
GenSeqLike → Equals → AnyRef → Any
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
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableLike
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
ParIterableLike → GenTraversableLike
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()
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
ParIterableLike → GenTraversableOnce
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
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
ParIterableLike → GenTraversableLike
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
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableLike → GenTraversableOnce
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
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
ParIterableLike → GenTraversableLike
def hasDefiniteSize : Boolean

Definition Classes
ParIterableLike → GenTraversableOnce
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
def head : T

Definition Classes
GenIterableLike → GenTraversableLike
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
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
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
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
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
ParSeqLike → GenSeqLike
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
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
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
ParSeqLike → GenSeqLike
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
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
GenIterableLike → GenTraversableOnce
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
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
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
GenTraversableLike → GenTraversableOnce
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
ParSeqLike → ParIterableLike → GenIterableLike
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
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
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
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
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
ParSeqLike → GenSeqLike
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
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
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
ParIterableLike → GenTraversableLike
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
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
ParIterableLike → GenTraversableOnce
def maxBy [S] (f: (T) ⇒ S)(implicit cmp: Ordering[S]): T

Definition Classes
ParIterableLike → GenTraversableOnce
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
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
ParIterableLike → GenTraversableOnce
def minBy [S] (f: (T) ⇒ S)(implicit cmp: Ordering[S]): T

Definition Classes
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableOnce
Example:
1. List(1, 2, 3).mkString("|") = "1|2|3"
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
ParIterableLike → GenTraversableOnce
Example:
1. List(1, 2, 3).mkString("(", "; ", ")") = "(1; 2; 3)"
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
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
ParIterableLike → GenTraversableOnce
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
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
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
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
ParSeqLike → GenSeqLike
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
ParIterableLike → CustomParallelizable → Parallelizable
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
CustomParallelizable → Parallelizable
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
ParIterableLike → GenTraversableLike
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
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
ParSeqLike → GenSeqLike
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
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
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
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableOnce
def reduceLeft [U >: T] (op: (U, T) ⇒ U): U

Definition Classes
ParIterableLike
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
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableOnce
def repr : Repr

Definition Classes
ParIterableLike → GenTraversableLike
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
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
ParSeqLike → GenSeqLike
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
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
ParSeqLike → GenSeqLike
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
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
ParSeqLike → ParIterableLike → GenIterableLike
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
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
ParIterableLike → GenTraversableLike
def scanBlockSize : Int

Attributes
protected[this]
Definition Classes
ParIterableLike
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
ParIterableLike → GenTraversableLike
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
ParIterableLike → GenTraversableLike
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
ParSeqLike → GenSeqLike
def sequentially [S, That <: Parallel] (b: (Sequential) ⇒ Parallelizable[S, That]): Repr

Attributes
protected[this]
Definition Classes
ParIterableLike
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
ParSeqLike → GenTraversableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableLike
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
ParIterableLike → GenTraversableLike
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
ParIterableLike → GenTraversableLike
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
ParSeqLike → GenSeqLike
def startsWith [B] (that: Seq[B]): Boolean

Definition Classes
GenSeqLike
Annotations
@bridge()
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
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
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
ParIterableLike → GenTraversableOnce
def synchronized [T0] (arg0: ⇒ T0): T0

Attributes
final
Definition Classes
AnyRef
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
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
ParIterableLike → GenTraversableLike
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
ParIterableLike → GenTraversableLike
implicit def task2ops [R, Tp] (tsk: SSCTask[R, Tp]): TaskOps[R, Tp]

Attributes
protected implicit
Definition Classes
ParIterableLike
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
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
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
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableOnce
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
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
ParIterableLike → GenTraversableOnce
def toParCollection [U >: T, That] (cbf: () ⇒ Combiner[U, That]): That

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

Attributes
protected
Definition Classes
ParIterableLike
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
ParSeqLike → ParIterableLike → GenSeqLike → GenTraversableOnce
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
ParIterableLike → GenTraversableOnce
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
ParIterableLike → GenTraversableOnce
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
ParSeqLike → ParIterableLike → AnyRef → Any
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
ParIterableLike → GenTraversableOnce
def union [B >: T, That] (that: Seq[B])(implicit bf: CanBuildFrom[Repr, B, That]): That

Definition Classes
GenSeqLike
Annotations
@bridge()
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
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
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
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
ParSeqLike → GenSeqLike
def view : ParSeqView[T, Repr, Sequential]

Definition Classes
ParSeqLike → ParIterableLike
def wait (): Unit

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

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

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

Attributes
protected
Definition Classes
ParIterableLike
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
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
ParSeqLike → ParIterableLike → GenIterableLike
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
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
ParIterableLike → GenIterableLike
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
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
ParIterableLike → GenIterableLike

ParSeqLike

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

Type Members

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

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

trait BuilderOps [Elem, To] extends AnyRef

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

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

class Copy [U >: T, That] extends Transformer[Combiner[U, That], Copy[U, That]]

class CopyToArray [U >: T, This >: Repr] extends Accessor[Unit, CopyToArray[U, This]]

class Corresponds [S] extends Accessor[Boolean, Corresponds[S]]

class Count extends Accessor[Int, Count]

class CreateScanTree [U >: T] extends Transformer[ScanTree[U], CreateScanTree[U]]

class Drop [U >: T, This >: Repr] extends Transformer[Combiner[U, This], Drop[U, This]]

class Elements extends ParIterator with BufferedIterator[T]

class Exists extends Accessor[Boolean, Exists]

class Filter [U >: T, This >: Repr] extends Transformer[Combiner[U, This], Filter[U, This]]

class FilterNot [U >: T, This >: Repr] extends Transformer[Combiner[U, This], FilterNot[U, This]]

class Find [U >: T] extends Accessor[Option[U], Find[U]]

class FlatMap [S, That] extends Transformer[Combiner[S, That], FlatMap[S, That]]

class Fold [U >: T] extends Accessor[U, Fold[U]]

class Forall extends Accessor[Boolean, Forall]

class Foreach [S] extends Accessor[Unit, Foreach[S]]

class FromScanTree [U >: T, That] extends StrictSplitterCheckTask[Combiner[U, That], FromScanTree[U, That]]

class GroupBy [K, U >: T] extends Transformer[HashMapCombiner[K, U], GroupBy[K, U]]

class IndexWhere extends Accessor[Int, IndexWhere]

class LastIndexWhere extends Accessor[Int, LastIndexWhere]

class Map [S, That] extends Transformer[Combiner[S, That], Map[S, That]]

class Max [U >: T] extends Accessor[Option[U], Max[U]]

class Min [U >: T] extends Accessor[Option[U], Min[U]]

trait NonDivisible [R] extends NonDivisibleTask[R, NonDivisible[R]]

trait NonDivisibleTask [R, Tp] extends StrictSplitterCheckTask[R, Tp]

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

trait ParIterator extends SeqSplitter[T] with ParIterator

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

class Product [U >: T] extends Accessor[U, Product[U]]

class Reduce [U >: T] extends Accessor[Option[U], Reduce[U]]

class ResultMapping [R, Tp, R1] extends NonDivisibleTask[R1, ResultMapping[R, Tp, R1]]

class Reverse [U >: T, This >: Repr] extends Transformer[Combiner[U, This], Reverse[U, This]]

class ReverseMap [S, That] extends Transformer[Combiner[S, That], ReverseMap[S, That]]

type SSCTask [R, Tp] = StrictSplitterCheckTask[R, Tp]

class SameElements [U >: T] extends Accessor[Boolean, SameElements[U]]

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

case class ScanNode [U >: T] (left: ScanTree[U], right: ScanTree[U]) extends ScanTree[U] with Product with Serializable

trait ScanTree [U >: T] extends AnyRef

class SegmentLength extends Accessor[(Int, Boolean), SegmentLength]

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

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

trait SignallingOps [PI <: DelegatedSignalling] extends AnyRef

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

class Span [U >: T, This >: Repr] extends Transformer[(Combiner[U, This], Combiner[U, This]), Span[U, This]]

class SplitAt [U >: T, This >: Repr] extends Transformer[(Combiner[U, This], Combiner[U, This]), SplitAt[U, This]]

trait StrictSplitterCheckTask [R, Tp] extends Task[R, Tp]

class Sum [U >: T] extends Accessor[U, Sum[U]]

type SuperParIterator = IterableSplitter[T]

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

class TakeWhile [U >: T, This >: Repr] extends Transformer[(Combiner[U, This], Boolean), TakeWhile[U, This]]

trait TaskOps [R, Tp] extends AnyRef

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

class ToParMap [K, V, That] extends Transformer[Combiner[(K, V), That], ToParMap[K, V, That]]

trait Transformer [R, Tp] extends Accessor[R, Tp] with Transformer[R, Tp]

class Updated [U >: T, That] extends Transformer[Combiner[U, That], Updated[U, That]]

class Zip [U >: T, S, That] extends Transformer[Combiner[(U, S), That], Zip[U, S, That]]

class ZipAll [U >: T, S, That] extends Transformer[Combiner[(U, S), That], ZipAll[U, S, That]]

Abstract Value Members

def apply (idx: Int): T

def length : Int

def newCombiner : Combiner[T, Repr]

def seq : Sequential

def splitter : SeqSplitter[T]

def stringPrefix : String

Concrete Value Members

def != (arg0: AnyRef): Boolean

def != (arg0: Any): Boolean

def ## (): Int

def ++ [B] (that: GenTraversableOnce[B]): GenSeq[B]

def ++ [U >: T, That] (that: GenTraversableOnce[U])(implicit bf: CanBuildFrom[Repr, U, That]): That

def +: (elem: T): GenSeq[T]

def +: [U >: T, That] (elem: U)(implicit bf: CanBuildFrom[Repr, U, That]): That

def /: [S] (z: S)(op: (S, T) ⇒ S): S