Trait

special.collection

CollBuilder

Related Doc: package collection

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trait CollBuilder extends AnyRef

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Abstract Value Members

  1. abstract def Monoids: MonoidBuilder

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  2. abstract def emptyColl[T](implicit tT: RType[T]): Coll[T]

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    Create an empty collection with items of the given type.

    Create an empty collection with items of the given type. Even though there are no items, the type of them is specified.

  3. abstract def flattenColl[A](coll: Coll[Coll[A]])(implicit arg0: RType[A]): Coll[A]

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    Flattens a two-dimensional array by concatenating all its rows into a single array.

    Flattens a two-dimensional array by concatenating all its rows into a single array.

    returns

    An array obtained by concatenating rows of this array.

  4. abstract def fromArray[T](arr: Array[T])(implicit arg0: RType[T]): Coll[T]

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    Wrap array into collection.

    Wrap array into collection.

    Annotations
    @Internal()
  5. abstract def fromItems[T](items: T*)(implicit cT: RType[T]): Coll[T]

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    Construct a new collection from the given list of arguments.

    Construct a new collection from the given list of arguments. The arguments should be of the same type for which there should be an implicit type descriptor at the call site.

    Annotations
    @Reified()
  6. abstract def fromMap[K, V](m: Map[K, V])(implicit arg0: RType[K], arg1: RType[V]): Coll[(K, V)]

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    Construct a collection of (K,V) pairs using PairColl representation, in which keys and values are stored as separate unboxed arrays.

    Construct a collection of (K,V) pairs using PairColl representation, in which keys and values are stored as separate unboxed arrays.

    Annotations
    @Internal()
  7. abstract def makePartialView[A, B](source: Coll[A], f: (A) ⇒ B, calculated: Array[Boolean], calculatedItems: Array[B])(implicit arg0: RType[B]): Coll[B]

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    Annotations
    @Internal()
  8. abstract def makeView[A, B](source: Coll[A], f: (A) ⇒ B)(implicit arg0: RType[B]): Coll[B]

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    Create a new collection in which every item is executed lazily form the corresponding item of the source collection.

    Create a new collection in which every item is executed lazily form the corresponding item of the source collection.

    source

    collection which is used as the source of items

    f

    function to compute each item of this collection from the source item This is O(1) operation, all executions of f are delayed until the corresponding item of this collection is needed in some operation.

    Annotations
    @Internal()
  9. abstract def outerJoin[K, L, R, O](left: Coll[(K, L)], right: Coll[(K, R)])(l: ((K, L)) ⇒ O, r: ((K, R)) ⇒ O, inner: ((K, (L, R))) ⇒ O)(implicit arg0: RType[K], arg1: RType[O]): Coll[(K, O)]

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    Performs outer join operation between left and right collections.

    Performs outer join operation between left and right collections. This is a restricted version of relational join operation. It expects left and right collections have distinct K values in pairs (otherwise exception is thrown). Under this condition resulting collection has size <= left.size + right.size.

    l

    projection function executed for each element of left

    r

    projection function executed for each element of right

    inner

    projection function which is executed for matching items (K, L) and (K, R) with the same K

    returns

    collection of (K, O) pairs, where each key comes form either left or right collection and values are produced by projections

    Since

    2.0

  10. abstract def pairColl[A, B](as: Coll[A], bs: Coll[B]): PairColl[A, B]

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  11. abstract def replicate[T](n: Int, v: T)(implicit arg0: RType[T]): Coll[T]

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    Creates a new collection by replicating value v.

    Creates a new collection by replicating value v.

    n

    how many times to replicate value v

    v

    value to replicate

    returns

    collection of the form (v, v, v, ... v) of n elements.

  12. abstract def unzip[A, B](xs: Coll[(A, B)]): (Coll[A], Coll[B])

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    Deconstruct collection of (A,B) pairs into pair of collections.

    Deconstruct collection of (A,B) pairs into pair of collections. If xs is represented as PairColl, then this is O(1) operation (no data is touched).

  13. abstract def xor(left: Coll[Byte], right: Coll[Byte]): Coll[Byte]

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    Element-wise xor of two collections.

Concrete Value Members

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

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  2. final def ##(): Int

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

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  4. final def asInstanceOf[T0]: T0

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  5. def clone(): AnyRef

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

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  7. def equals(arg0: Any): Boolean

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  8. def finalize(): Unit

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

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  10. def hashCode(): Int

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  11. final def isInstanceOf[T0]: Boolean

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

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  13. final def notify(): Unit

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  14. final def notifyAll(): Unit

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  15. def pairCollFromArrays[A, B](as: Array[A], bs: Array[B])(implicit arg0: RType[A], arg1: RType[B]): PairColl[A, B]

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    @Internal()
  16. final def synchronized[T0](arg0: ⇒ T0): T0

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  17. def toString(): String

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  18. final def wait(): Unit

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

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

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