breeze.util

HashIndex

class HashIndex[T] extends MutableIndex[T] with Serializable

Class that builds a 1-to-1 mapping between Ints and T's, which is very useful for efficiency concerns.

Two extra views are provided: the index.synchronized view enables threadsafe access and the index.immutable view keeps prevents the (view) from being updated.

Annotations
@SerialVersionUID( 7655100457525569617L )
Linear Supertypes
MutableIndex[T], Index[T], Serializable, Serializable, (T) ⇒ Int, Iterable[T], IterableLike[T, Iterable[T]], Equals, GenIterable[T], GenIterableLike[T, Iterable[T]], Traversable[T], GenTraversable[T], GenericTraversableTemplate[T, Iterable], TraversableLike[T, Iterable[T]], GenTraversableLike[T, Iterable[T]], Parallelizable[T, ParIterable[T]], TraversableOnce[T], GenTraversableOnce[T], FilterMonadic[T, Iterable[T]], HasNewBuilder[T, Iterable[T]], AnyRef, Any
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Inherited
  1. HashIndex
  2. MutableIndex
  3. Index
  4. Serializable
  5. Serializable
  6. Function1
  7. Iterable
  8. IterableLike
  9. Equals
  10. GenIterable
  11. GenIterableLike
  12. Traversable
  13. GenTraversable
  14. GenericTraversableTemplate
  15. TraversableLike
  16. GenTraversableLike
  17. Parallelizable
  18. TraversableOnce
  19. GenTraversableOnce
  20. FilterMonadic
  21. HasNewBuilder
  22. AnyRef
  23. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new HashIndex()

Type Members

  1. type Self = Iterable[T]

    Attributes
    protected
    Definition Classes
    TraversableLike
  2. class WithFilter extends FilterMonadic[A, Repr]

    Definition Classes
    TraversableLike

Value Members

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

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

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

    Definition Classes
    AnyRef → Any
  4. def ++[B >: T, That](that: GenTraversableOnce[B])(implicit bf: CanBuildFrom[Iterable[T], B, That]): That

    Definition Classes
    TraversableLike → GenTraversableLike
  5. def ++:[B >: T, That](that: Traversable[B])(implicit bf: CanBuildFrom[Iterable[T], B, That]): That

    Definition Classes
    TraversableLike
  6. def ++:[B >: T, That](that: TraversableOnce[B])(implicit bf: CanBuildFrom[Iterable[T], B, That]): That

    Definition Classes
    TraversableLike
  7. def /:[B](z: B)(op: (B, T) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce
  8. def :\[B](z: B)(op: (T, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce
  9. final def ==(arg0: AnyRef): Boolean

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

    Definition Classes
    Any
  11. def addString(b: StringBuilder): StringBuilder

    Definition Classes
    TraversableOnce
  12. def addString(b: StringBuilder, sep: String): StringBuilder

    Definition Classes
    TraversableOnce
  13. def addString(b: StringBuilder, start: String, sep: String, end: String): StringBuilder

    Definition Classes
    TraversableOnce
  14. def aggregate[B](z: B)(seqop: (B, T) ⇒ B, combop: (B, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce
  15. def andThen[A](g: (Int) ⇒ A): (T) ⇒ A

    Definition Classes
    Function1
    Annotations
    @unspecialized()
  16. def apply(t: T): Int

    Returns the int id of the given element (0-based) or -1 if not found in the index.

    Returns the int id of the given element (0-based) or -1 if not found in the index. This method never changes the index (even in MutableIndex).

    Definition Classes
    HashIndexIndex → Function1
  17. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  18. def canEqual(that: Any): Boolean

    Definition Classes
    IterableLike → Equals
  19. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  20. def collect[B, That](pf: PartialFunction[T, B])(implicit bf: CanBuildFrom[Iterable[T], B, That]): That

    Definition Classes
    TraversableLike → GenTraversableLike
  21. def collectFirst[B](pf: PartialFunction[T, B]): Option[B]

    Definition Classes
    TraversableOnce
  22. def companion: GenericCompanion[Iterable]

    Definition Classes
    Iterable → GenIterable → Traversable → GenTraversable → GenericTraversableTemplate
  23. def compose[A](g: (A) ⇒ T): (A) ⇒ Int

    Definition Classes
    Function1
    Annotations
    @unspecialized()
  24. def contains(t: T): Boolean

    Returns true if this index contains the element t.

    Returns true if this index contains the element t.

    Definition Classes
    HashIndexIndex
  25. def copyToArray[B >: T](xs: Array[B], start: Int, len: Int): Unit

    Definition Classes
    IterableLike → TraversableLike → TraversableOnce → GenTraversableOnce
  26. def copyToArray[B >: T](xs: Array[B]): Unit

    Definition Classes
    TraversableOnce → GenTraversableOnce
  27. def copyToArray[B >: T](xs: Array[B], start: Int): Unit

    Definition Classes
    TraversableOnce → GenTraversableOnce
  28. def copyToBuffer[B >: T](dest: Buffer[B]): Unit

    Definition Classes
    TraversableOnce
  29. def count(p: (T) ⇒ Boolean): Int

    Definition Classes
    TraversableOnce → GenTraversableOnce
  30. lazy val defaultHashCode: Int

    Attributes
    protected
    Definition Classes
    Index
  31. def drop(n: Int): Iterable[T]

    Definition Classes
    IterableLike → TraversableLike → GenTraversableLike
  32. def dropRight(n: Int): Iterable[T]

    Definition Classes
    IterableLike
  33. def dropWhile(p: (T) ⇒ Boolean): Iterable[T]

    Definition Classes
    TraversableLike → GenTraversableLike
  34. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  35. def equals(other: Any): Boolean

    Definition Classes
    Index → Equals → AnyRef → Any
  36. def exists(p: (T) ⇒ Boolean): Boolean

    Definition Classes
    IterableLike → TraversableLike → TraversableOnce → GenTraversableOnce
  37. def filter(p: (T) ⇒ Boolean): Iterable[T]

    Definition Classes
    TraversableLike → GenTraversableLike
  38. def filterNot(p: (T) ⇒ Boolean): Iterable[T]

    Definition Classes
    TraversableLike → GenTraversableLike
  39. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  40. def find(p: (T) ⇒ Boolean): Option[T]

    Definition Classes
    IterableLike → TraversableLike → TraversableOnce → GenTraversableOnce
  41. def flatMap[B, That](f: (T) ⇒ GenTraversableOnce[B])(implicit bf: CanBuildFrom[Iterable[T], B, That]): That

    Definition Classes
    TraversableLike → GenTraversableLike → FilterMonadic
  42. def flatten[B](implicit asTraversable: (T) ⇒ GenTraversableOnce[B]): Iterable[B]

    Definition Classes
    GenericTraversableTemplate
  43. def fold[A1 >: T](z: A1)(op: (A1, A1) ⇒ A1): A1

    Definition Classes
    TraversableOnce → GenTraversableOnce
  44. def foldLeft[B](z: B)(op: (B, T) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce
  45. def foldRight[B](z: B)(op: (T, B) ⇒ B): B

    Definition Classes
    IterableLike → TraversableOnce → GenTraversableOnce
  46. def forall(p: (T) ⇒ Boolean): Boolean

    Definition Classes
    IterableLike → TraversableLike → TraversableOnce → GenTraversableOnce
  47. def foreach[U](f: (T) ⇒ U): Unit

    Definition Classes
    IterableLike → TraversableLike → GenTraversableLike → TraversableOnce → GenTraversableOnce → FilterMonadic
  48. def genericBuilder[B]: Builder[B, Iterable[B]]

    Definition Classes
    GenericTraversableTemplate
  49. def get(pos: Int): T

    Returns an object at the given position or throws IndexOutOfBoundsException if it's not found.

    Returns an object at the given position or throws IndexOutOfBoundsException if it's not found.

    Definition Classes
    HashIndexIndex
  50. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  51. def groupBy[K](f: (T) ⇒ K): Map[K, Iterable[T]]

    Definition Classes
    TraversableLike → GenTraversableLike
  52. def grouped(size: Int): Iterator[Iterable[T]]

    Definition Classes
    IterableLike
  53. def hasDefiniteSize: Boolean

    Definition Classes
    TraversableLike → TraversableOnce → GenTraversableOnce
  54. def hashCode(): Int

    Definition Classes
    Index → AnyRef → Any
  55. def head: T

    Definition Classes
    IterableLike → TraversableLike → GenTraversableLike
  56. def headOption: Option[T]

    Definition Classes
    TraversableLike → GenTraversableLike
  57. def index(t: T): Int

    Returns the position of T, adding it to the index if it's not there.

    Returns the position of T, adding it to the index if it's not there.

    Definition Classes
    HashIndexMutableIndex
  58. def indexOf(t: T): Int

    Override Iterable's linear-scan indexOf to use our apply method.

    Override Iterable's linear-scan indexOf to use our apply method.

    Definition Classes
    Index
  59. def indexOpt(t: T): Option[Int]

    Returns Some(i) if the object has been indexed, or None.

    Returns Some(i) if the object has been indexed, or None.

    Definition Classes
    HashIndexIndex
  60. def init: Iterable[T]

    Definition Classes
    TraversableLike → GenTraversableLike
  61. def inits: Iterator[Iterable[T]]

    Definition Classes
    TraversableLike
  62. def isEmpty: Boolean

    Definition Classes
    IterableLike → TraversableLike → TraversableOnce → GenTraversableOnce
  63. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  64. final def isTraversableAgain: Boolean

    Definition Classes
    TraversableLike → GenTraversableLike → GenTraversableOnce
  65. def iterator: Iterator[T]

    Definition Classes
    HashIndex → IterableLike → GenIterableLike
  66. def last: T

    Definition Classes
    TraversableLike → GenTraversableLike
  67. def lastOption: Option[T]

    Definition Classes
    TraversableLike → GenTraversableLike
  68. def map[B, That](f: (T) ⇒ B)(implicit bf: CanBuildFrom[Iterable[T], B, That]): That

    Definition Classes
    TraversableLike → GenTraversableLike → FilterMonadic
  69. def max[B >: T](implicit cmp: Ordering[B]): T

    Definition Classes
    TraversableOnce → GenTraversableOnce
  70. def maxBy[B](f: (T) ⇒ B)(implicit cmp: Ordering[B]): T

    Definition Classes
    TraversableOnce → GenTraversableOnce
  71. def min[B >: T](implicit cmp: Ordering[B]): T

    Definition Classes
    TraversableOnce → GenTraversableOnce
  72. def minBy[B](f: (T) ⇒ B)(implicit cmp: Ordering[B]): T

    Definition Classes
    TraversableOnce → GenTraversableOnce
  73. def mkString: String

    Definition Classes
    TraversableOnce → GenTraversableOnce
  74. def mkString(sep: String): String

    Definition Classes
    TraversableOnce → GenTraversableOnce
  75. def mkString(start: String, sep: String, end: String): String

    Definition Classes
    TraversableOnce → GenTraversableOnce
  76. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  77. def newBuilder: Builder[T, Iterable[T]]

    Attributes
    protected[this]
    Definition Classes
    GenericTraversableTemplate → HasNewBuilder
  78. def nonEmpty: Boolean

    Definition Classes
    TraversableOnce → GenTraversableOnce
  79. final def notify(): Unit

    Definition Classes
    AnyRef
  80. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  81. def pairs: Iterator[(T, Int)]

    Returns the indexed items along with their indicies

    Returns the indexed items along with their indicies

    Definition Classes
    HashIndexIndex
  82. def par: ParIterable[T]

    Definition Classes
    Parallelizable
  83. def parCombiner: Combiner[T, ParIterable[T]]

    Attributes
    protected[this]
    Definition Classes
    TraversableLike → Parallelizable
  84. def partition(p: (T) ⇒ Boolean): (Iterable[T], Iterable[T])

    Definition Classes
    TraversableLike → GenTraversableLike
  85. def product[B >: T](implicit num: Numeric[B]): B

    Definition Classes
    TraversableOnce → GenTraversableOnce
  86. def reduce[A1 >: T](op: (A1, A1) ⇒ A1): A1

    Definition Classes
    TraversableOnce → GenTraversableOnce
  87. def reduceLeft[B >: T](op: (B, T) ⇒ B): B

    Definition Classes
    TraversableOnce
  88. def reduceLeftOption[B >: T](op: (B, T) ⇒ B): Option[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  89. def reduceOption[A1 >: T](op: (A1, A1) ⇒ A1): Option[A1]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  90. def reduceRight[B >: T](op: (T, B) ⇒ B): B

    Definition Classes
    IterableLike → TraversableOnce → GenTraversableOnce
  91. def reduceRightOption[B >: T](op: (T, B) ⇒ B): Option[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  92. def repr: Iterable[T]

    Definition Classes
    TraversableLike → GenTraversableLike
  93. def reversed: List[T]

    Attributes
    protected[this]
    Definition Classes
    TraversableOnce
  94. def sameElements[B >: T](that: GenIterable[B]): Boolean

    Definition Classes
    IterableLike → GenIterableLike
  95. def scan[B >: T, That](z: B)(op: (B, B) ⇒ B)(implicit cbf: CanBuildFrom[Iterable[T], B, That]): That

    Definition Classes
    TraversableLike → GenTraversableLike
  96. def scanLeft[B, That](z: B)(op: (B, T) ⇒ B)(implicit bf: CanBuildFrom[Iterable[T], B, That]): That

    Definition Classes
    TraversableLike → GenTraversableLike
  97. def scanRight[B, That](z: B)(op: (T, B) ⇒ B)(implicit bf: CanBuildFrom[Iterable[T], B, That]): That

    Definition Classes
    TraversableLike → GenTraversableLike
    Annotations
    @migration
    Migration

    (Changed in version 2.9.0) The behavior of scanRight has changed. The previous behavior can be reproduced with scanRight.reverse.

  98. def seq: Iterable[T]

    Definition Classes
    Iterable → GenIterable → Traversable → GenTraversable → Parallelizable → TraversableOnce → GenTraversableOnce
  99. def size: Int

    Number of elements in this index.

    Number of elements in this index.

    Definition Classes
    HashIndexIndex → GenTraversableLike → TraversableOnce → GenTraversableOnce
  100. def slice(from: Int, until: Int): Iterable[T]

    Definition Classes
    IterableLike → TraversableLike → GenTraversableLike
  101. def sliding(size: Int, step: Int): Iterator[Iterable[T]]

    Definition Classes
    IterableLike
  102. def sliding(size: Int): Iterator[Iterable[T]]

    Definition Classes
    IterableLike
  103. def span(p: (T) ⇒ Boolean): (Iterable[T], Iterable[T])

    Definition Classes
    TraversableLike → GenTraversableLike
  104. def splitAt(n: Int): (Iterable[T], Iterable[T])

    Definition Classes
    TraversableLike → GenTraversableLike
  105. def stringPrefix: String

    Definition Classes
    TraversableLike → GenTraversableLike
  106. def sum[B >: T](implicit num: Numeric[B]): B

    Definition Classes
    TraversableOnce → GenTraversableOnce
  107. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  108. def tail: Iterable[T]

    Definition Classes
    TraversableLike → GenTraversableLike
  109. def tails: Iterator[Iterable[T]]

    Definition Classes
    TraversableLike
  110. def take(n: Int): Iterable[T]

    Definition Classes
    IterableLike → TraversableLike → GenTraversableLike
  111. def takeRight(n: Int): Iterable[T]

    Definition Classes
    IterableLike
  112. def takeWhile(p: (T) ⇒ Boolean): Iterable[T]

    Definition Classes
    IterableLike → TraversableLike → GenTraversableLike
  113. def thisCollection: Iterable[T]

    Attributes
    protected[this]
    Definition Classes
    IterableLike → TraversableLike
  114. def to[Col[_]](implicit cbf: CanBuildFrom[Nothing, T, Col[T]]): Col[T]

    Definition Classes
    TraversableLike → TraversableOnce → GenTraversableOnce
  115. def toArray[B >: T](implicit arg0: ClassTag[B]): Array[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  116. def toBuffer[B >: T]: Buffer[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  117. def toCollection(repr: Iterable[T]): Iterable[T]

    Attributes
    protected[this]
    Definition Classes
    IterableLike → TraversableLike
  118. def toIndexedSeq: IndexedSeq[T]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  119. def toIterable: Iterable[T]

    Definition Classes
    IterableLike → TraversableOnce → GenTraversableOnce
  120. def toIterator: Iterator[T]

    Definition Classes
    IterableLike → TraversableLike → GenTraversableOnce
  121. def toList: List[T]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  122. def toMap[T, U](implicit ev: <:<[T, (T, U)]): Map[T, U]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  123. def toSeq: Seq[T]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  124. def toSet[B >: T]: Set[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  125. def toStream: Stream[T]

    Definition Classes
    IterableLike → TraversableLike → GenTraversableOnce
  126. def toString(): String

    Definition Classes
    Index → Function1 → TraversableLike → AnyRef → Any
  127. def toTraversable: Traversable[T]

    Definition Classes
    TraversableLike → TraversableOnce → GenTraversableOnce
  128. def toVector: Vector[T]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  129. def transpose[B](implicit asTraversable: (T) ⇒ GenTraversableOnce[B]): Iterable[Iterable[B]]

    Definition Classes
    GenericTraversableTemplate
    Annotations
    @migration
    Migration

    (Changed in version 2.9.0) transpose throws an IllegalArgumentException if collections are not uniformly sized.

  130. def unapply(pos: Int): Option[T]

    Returns Some(t) if this int corresponds to some object, and None otherwise.

    Returns Some(t) if this int corresponds to some object, and None otherwise.

    Definition Classes
    HashIndexIndex
  131. def unzip[A1, A2](implicit asPair: (T) ⇒ (A1, A2)): (Iterable[A1], Iterable[A2])

    Definition Classes
    GenericTraversableTemplate
  132. def unzip3[A1, A2, A3](implicit asTriple: (T) ⇒ (A1, A2, A3)): (Iterable[A1], Iterable[A2], Iterable[A3])

    Definition Classes
    GenericTraversableTemplate
  133. def view(from: Int, until: Int): IterableView[T, Iterable[T]]

    Definition Classes
    IterableLike → TraversableLike
  134. def view: IterableView[T, Iterable[T]]

    Definition Classes
    IterableLike → TraversableLike
  135. final def wait(): Unit

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

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  138. def withFilter(p: (T) ⇒ Boolean): FilterMonadic[T, Iterable[T]]

    Definition Classes
    TraversableLike → FilterMonadic
  139. def zip[A1 >: T, B, That](that: GenIterable[B])(implicit bf: CanBuildFrom[Iterable[T], (A1, B), That]): That

    Definition Classes
    IterableLike → GenIterableLike
  140. def zipAll[B, A1 >: T, That](that: GenIterable[B], thisElem: A1, thatElem: B)(implicit bf: CanBuildFrom[Iterable[T], (A1, B), That]): That

    Definition Classes
    IterableLike → GenIterableLike
  141. def zipWithIndex[A1 >: T, That](implicit bf: CanBuildFrom[Iterable[T], (A1, Int), That]): That

    Definition Classes
    IterableLike → GenIterableLike
  142. def |[U](right: Index[U]): EitherIndex[T, U]

    Definition Classes
    Index

Deprecated Value Members

  1. def /:\[A1 >: T](z: A1)(op: (A1, A1) ⇒ A1): A1

    Definition Classes
    GenTraversableOnce
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) use fold instead

Inherited from MutableIndex[T]

Inherited from Index[T]

Inherited from Serializable

Inherited from Serializable

Inherited from (T) ⇒ Int

Inherited from Iterable[T]

Inherited from IterableLike[T, Iterable[T]]

Inherited from Equals

Inherited from GenIterable[T]

Inherited from GenIterableLike[T, Iterable[T]]

Inherited from Traversable[T]

Inherited from GenTraversable[T]

Inherited from GenericTraversableTemplate[T, Iterable]

Inherited from TraversableLike[T, Iterable[T]]

Inherited from GenTraversableLike[T, Iterable[T]]

Inherited from Parallelizable[T, ParIterable[T]]

Inherited from TraversableOnce[T]

Inherited from GenTraversableOnce[T]

Inherited from FilterMonadic[T, Iterable[T]]

Inherited from HasNewBuilder[T, Iterable[T]]

Inherited from AnyRef

Inherited from Any

Ungrouped