org.apache.spark.util

BoundedPriorityQueue

class BoundedPriorityQueue[A] extends Iterable[A] with Growable[A] with Serializable

Bounded priority queue. This class wraps the original PriorityQueue class and modifies it such that only the top K elements are retained. The top K elements are defined by an implicit Ordering[A].

Linear Supertypes
Serializable, Growable[A], Clearable, Iterable[A], IterableLike[A, Iterable[A]], Equals, GenIterable[A], GenIterableLike[A, Iterable[A]], Traversable[A], GenTraversable[A], GenericTraversableTemplate[A, Iterable], TraversableLike[A, Iterable[A]], GenTraversableLike[A, Iterable[A]], Parallelizable[A, ParIterable[A]], TraversableOnce[A], GenTraversableOnce[A], FilterMonadic[A, Iterable[A]], HasNewBuilder[A, Iterable[A]], AnyRef, Any
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Inherited
  1. BoundedPriorityQueue
  2. Serializable
  3. Growable
  4. Clearable
  5. Iterable
  6. IterableLike
  7. Equals
  8. GenIterable
  9. GenIterableLike
  10. Traversable
  11. GenTraversable
  12. GenericTraversableTemplate
  13. TraversableLike
  14. GenTraversableLike
  15. Parallelizable
  16. TraversableOnce
  17. GenTraversableOnce
  18. FilterMonadic
  19. HasNewBuilder
  20. AnyRef
  21. Any
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Visibility
  1. Public
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Instance Constructors

  1. new BoundedPriorityQueue(maxSize: Int)(implicit ord: Ordering[A])

Type Members

  1. type Self = Iterable[A]

    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 >: A, That](that: GenTraversableOnce[B])(implicit bf: CanBuildFrom[Iterable[A], B, That]): That

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

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

    Definition Classes
    TraversableLike
  7. def ++=(xs: TraversableOnce[A]): BoundedPriorityQueue.this.type

    Definition Classes
    BoundedPriorityQueue → Growable
  8. def +=(elem1: A, elem2: A, elems: A*): BoundedPriorityQueue.this.type

    Definition Classes
    BoundedPriorityQueue → Growable
  9. def +=(elem: A): BoundedPriorityQueue.this.type

    Definition Classes
    BoundedPriorityQueue → Growable
  10. def /:[B](z: B)(op: (B, A) ⇒ B): B

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

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

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

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

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

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

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

    Definition Classes
    TraversableOnce → GenTraversableOnce
  18. final def asInstanceOf[T0]: T0

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

    Definition Classes
    IterableLike → Equals
  20. def clear(): Unit

    Definition Classes
    BoundedPriorityQueue → Growable → Clearable
  21. def clone(): AnyRef

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

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

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

    Definition Classes
    Iterable → GenIterable → Traversable → GenTraversable → GenericTraversableTemplate
  25. def copyToArray[B >: A](xs: Array[B], start: Int, len: Int): Unit

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

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

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

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

    Definition Classes
    TraversableOnce → GenTraversableOnce
  30. def drop(n: Int): Iterable[A]

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

    Definition Classes
    IterableLike
  32. def dropWhile(p: (A) ⇒ Boolean): Iterable[A]

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

    Definition Classes
    AnyRef
  34. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  35. def exists(p: (A) ⇒ Boolean): Boolean

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

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

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

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

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

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

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

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

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

    Definition Classes
    IterableLike → TraversableOnce → GenTraversableOnce
  45. def forall(p: (A) ⇒ Boolean): Boolean

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

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

    Definition Classes
    GenericTraversableTemplate
  48. final def getClass(): Class[_]

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

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

    Definition Classes
    IterableLike
  51. def hasDefiniteSize: Boolean

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

    Definition Classes
    AnyRef → Any
  53. def head: A

    Definition Classes
    IterableLike → TraversableLike → GenTraversableLike
  54. def headOption: Option[A]

    Definition Classes
    TraversableLike → GenTraversableLike
  55. def init: Iterable[A]

    Definition Classes
    TraversableLike → GenTraversableLike
  56. def inits: Iterator[Iterable[A]]

    Definition Classes
    TraversableLike
  57. def isEmpty: Boolean

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

    Definition Classes
    Any
  59. final def isTraversableAgain: Boolean

    Definition Classes
    TraversableLike → GenTraversableLike → GenTraversableOnce
  60. def iterator: Iterator[A]

    Definition Classes
    BoundedPriorityQueue → IterableLike → GenIterableLike
  61. def last: A

    Definition Classes
    TraversableLike → GenTraversableLike
  62. def lastOption: Option[A]

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

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

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

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

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

    Definition Classes
    TraversableOnce → GenTraversableOnce
  68. def mkString: String

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

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

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

    Definition Classes
    AnyRef
  72. def newBuilder: Builder[A, Iterable[A]]

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

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

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

    Definition Classes
    AnyRef
  76. def par: ParIterable[A]

    Definition Classes
    Parallelizable
  77. def parCombiner: Combiner[A, ParIterable[A]]

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

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

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

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

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

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

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

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

    Definition Classes
    TraversableOnce → GenTraversableOnce
  86. def repr: Iterable[A]

    Definition Classes
    TraversableLike → GenTraversableLike
  87. def reversed: List[A]

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

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

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

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

  92. def seq: Iterable[A]

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

    Definition Classes
    BoundedPriorityQueue → GenTraversableLike → TraversableOnce → GenTraversableOnce
  94. def slice(from: Int, until: Int): Iterable[A]

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

    Definition Classes
    IterableLike
  96. def sliding(size: Int): Iterator[Iterable[A]]

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

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

    Definition Classes
    TraversableLike → GenTraversableLike
  99. def stringPrefix: String

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

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

    Definition Classes
    AnyRef
  102. def tail: Iterable[A]

    Definition Classes
    TraversableLike → GenTraversableLike
  103. def tails: Iterator[Iterable[A]]

    Definition Classes
    TraversableLike
  104. def take(n: Int): Iterable[A]

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

    Definition Classes
    IterableLike
  106. def takeWhile(p: (A) ⇒ Boolean): Iterable[A]

    Definition Classes
    IterableLike → TraversableLike → GenTraversableLike
  107. def thisCollection: Iterable[A]

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

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

    Definition Classes
    TraversableOnce → GenTraversableOnce
  110. def toBuffer[B >: A]: Buffer[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  111. def toCollection(repr: Iterable[A]): Iterable[A]

    Attributes
    protected[this]
    Definition Classes
    IterableLike → TraversableLike
  112. def toIndexedSeq: IndexedSeq[A]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  113. def toIterable: Iterable[A]

    Definition Classes
    IterableLike → TraversableOnce → GenTraversableOnce
  114. def toIterator: Iterator[A]

    Definition Classes
    IterableLike → TraversableLike → GenTraversableOnce
  115. def toList: List[A]

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

    Definition Classes
    TraversableOnce → GenTraversableOnce
  117. def toSeq: Seq[A]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  118. def toSet[B >: A]: Set[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  119. def toStream: Stream[A]

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

    Definition Classes
    TraversableLike → Any
  121. def toTraversable: Traversable[A]

    Definition Classes
    TraversableLike → TraversableOnce → GenTraversableOnce
  122. def toVector: scala.Vector[A]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  123. def transpose[B](implicit asTraversable: (A) ⇒ 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.

  124. def unzip[A1, A2](implicit asPair: (A) ⇒ (A1, A2)): (Iterable[A1], Iterable[A2])

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

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

    Definition Classes
    IterableLike → TraversableLike
  127. def view: IterableView[A, Iterable[A]]

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

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

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

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

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

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

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

    Definition Classes
    IterableLike → GenIterableLike

Deprecated Value Members

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

    Definition Classes
    GenTraversableOnce
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) use fold instead

Inherited from Serializable

Inherited from Growable[A]

Inherited from Clearable

Inherited from Iterable[A]

Inherited from IterableLike[A, Iterable[A]]

Inherited from Equals

Inherited from GenIterable[A]

Inherited from GenIterableLike[A, Iterable[A]]

Inherited from Traversable[A]

Inherited from GenTraversable[A]

Inherited from GenericTraversableTemplate[A, Iterable]

Inherited from TraversableLike[A, Iterable[A]]

Inherited from GenTraversableLike[A, Iterable[A]]

Inherited from Parallelizable[A, ParIterable[A]]

Inherited from TraversableOnce[A]

Inherited from GenTraversableOnce[A]

Inherited from FilterMonadic[A, Iterable[A]]

Inherited from HasNewBuilder[A, Iterable[A]]

Inherited from AnyRef

Inherited from Any

Ungrouped