com.twitter.cassovary.graph

RandomTraverser

Related Doc: package graph

class RandomTraverser[+V <: Node] extends Traverser[V]

Randomly traverse the graph, going from one node to a random neighbor in direction dir.

Self Type
RandomTraverser[V]
Linear Supertypes
Traverser[V], Iterator[V], TraversableOnce[V], GenTraversableOnce[V], AnyRef, Any
Known Subclasses
RandomBoundedTraverser
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Inherited
  1. RandomTraverser
  2. Traverser
  3. Iterator
  4. TraversableOnce
  5. GenTraversableOnce
  6. AnyRef
  7. Any
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  1. Public
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Instance Constructors

  1. new RandomTraverser(graph: Graph[V], dir: GraphDir, homeNodeIds: Seq[Int], resetProbability: Double, maxNumEdgesThresh: Option[Int], onlyOnce: Boolean, randNumGen: Random, maxDepth: Option[Int], filterHomeNodeByNumEdges: Boolean)

    graph

    the graph to traverse on

    dir

    direction in which to traverse

    homeNodeIds

    the ids of nodes that the traverser will go to next if the node has no neighbors, or we reset the traversal with probability resetProbability, or if the number of out-going edges at the current node exceeds maxNumEdgesThresh

    resetProbability

    the probability of teleporting back to home node set at each step

    maxNumEdgesThresh

    if set, do not traverse edges with > maxNumEdgesThresh outgoing edges

    onlyOnce

    specifies whether the same node should only be allowed to be visited once in any path.

    randNumGen

    a random number generator (for stable walk, a seeded random number generator is used).

    maxDepth

    if set, max depth of path

    filterHomeNodeByNumEdges

    filter home node by number of edges

Type Members

  1. class GroupedIterator[B >: A] extends AbstractIterator[Seq[B]] with Iterator[Seq[B]]

    Definition Classes
    Iterator

Value Members

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

    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

    Definition Classes
    AnyRef → Any

  3. def ++[B >: V](that: ⇒ GenTraversableOnce[B]): Iterator[B]

    Definition Classes
    Iterator

  4. def /:[B](z: B)(op: (B, V) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  5. def :\[B](z: B)(op: (V, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    AnyRef → Any

  7. def addString(b: StringBuilder): StringBuilder

    Definition Classes
    TraversableOnce

  8. def addString(b: StringBuilder, sep: String): StringBuilder

    Definition Classes
    TraversableOnce

  9. def addString(b: StringBuilder, start: String, sep: String, end: String): StringBuilder

    Definition Classes
    TraversableOnce

  10. def aggregate[B](z: ⇒ B)(seqop: (B, V) ⇒ B, combop: (B, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  11. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  12. def buffered: BufferedIterator[V]

    Definition Classes
    Iterator

  13. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  14. def collect[B](pf: PartialFunction[V, B]): Iterator[B]

    Definition Classes
    Iterator
    Annotations
    @migration
    Migration

    (Changed in version 2.8.0) collect has changed. The previous behavior can be reproduced with toSeq.

  15. def collectFirst[B](pf: PartialFunction[V, B]): Option[B]

    Definition Classes
    TraversableOnce

  16. def contains(elem: Any): Boolean

    Definition Classes
    Iterator

  17. def copyToArray[B >: V](xs: Array[B], start: Int, len: Int): Unit

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  18. def copyToArray[B >: V](xs: Array[B]): Unit

    Definition Classes
    TraversableOnce → GenTraversableOnce

  19. def copyToArray[B >: V](xs: Array[B], start: Int): Unit

    Definition Classes
    TraversableOnce → GenTraversableOnce

  20. def copyToBuffer[B >: V](dest: Buffer[B]): Unit

    Definition Classes
    TraversableOnce

  21. def corresponds[B](that: GenTraversableOnce[B])(p: (V, B) ⇒ Boolean): Boolean

    Definition Classes
    Iterator

  22. def count(p: (V) ⇒ Boolean): Int

    Definition Classes
    TraversableOnce → GenTraversableOnce

  23. def drop(n: Int): Iterator[V]

    Definition Classes
    Iterator

  24. def dropWhile(p: (V) ⇒ Boolean): Iterator[V]

    Definition Classes
    Iterator

  25. def duplicate: (Iterator[V], Iterator[V])

    Definition Classes
    Iterator

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

    Definition Classes
    AnyRef

  27. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  28. def exists(p: (V) ⇒ Boolean): Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  29. def filter(p: (V) ⇒ Boolean): Iterator[V]

    Definition Classes
    Iterator

  30. def filterNot(p: (V) ⇒ Boolean): Iterator[V]

    Definition Classes
    Iterator

  31. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  32. def find(p: (V) ⇒ Boolean): Option[V]

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  33. def flatMap[B](f: (V) ⇒ GenTraversableOnce[B]): Iterator[B]

    Definition Classes
    Iterator

  34. def fold[A1 >: V](z: A1)(op: (A1, A1) ⇒ A1): A1

    Definition Classes
    TraversableOnce → GenTraversableOnce

  35. def foldLeft[B](z: B)(op: (B, V) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  36. def foldRight[B](z: B)(op: (V, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  37. def forall(p: (V) ⇒ Boolean): Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  38. def foreach[U](f: (V) ⇒ U): Unit

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

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

    Definition Classes
    AnyRef → Any

  40. def getExistingNodeById[W >: V <: Node](graph: Graph[W], id: Int): W

    Traverser only visits node Ids listed in some node's edges, and thus we know that node must exist, safe to assume graph.getNodeById return non-None value

    Traverser only visits node Ids listed in some node's edges, and thus we know that node must exist, safe to assume graph.getNodeById return non-None value

    Attributes
    protected
    Definition Classes
    Traverser

  41. def grouped[B >: V](size: Int): GroupedIterator[B]

    Definition Classes
    Iterator

  42. def hasDefiniteSize: Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  43. def hasNext: Boolean

    Definition Classes
    RandomTraverser → Iterator

  44. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  45. def indexOf[B >: V](elem: B): Int

    Definition Classes
    Iterator

  46. def indexWhere(p: (V) ⇒ Boolean): Int

    Definition Classes
    Iterator

  47. def isEmpty: Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  48. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  49. def isTraversableAgain: Boolean

    Definition Classes
    Iterator → GenTraversableOnce

  50. def length: Int

    Definition Classes
    Iterator

  51. def map[B](f: (V) ⇒ B): Iterator[B]

    Definition Classes
    Iterator

  52. def max[B >: V](implicit cmp: Ordering[B]): V

    Definition Classes
    TraversableOnce → GenTraversableOnce

  53. def maxBy[B](f: (V) ⇒ B)(implicit cmp: Ordering[B]): V

    Definition Classes
    TraversableOnce → GenTraversableOnce

  54. def min[B >: V](implicit cmp: Ordering[B]): V

    Definition Classes
    TraversableOnce → GenTraversableOnce

  55. def minBy[B](f: (V) ⇒ B)(implicit cmp: Ordering[B]): V

    Definition Classes
    TraversableOnce → GenTraversableOnce

  56. def mkString: String

    Definition Classes
    TraversableOnce → GenTraversableOnce

  57. def mkString(sep: String): String

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    TraversableOnce → GenTraversableOnce

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

    Definition Classes
    AnyRef

  60. def next(): V

    Definition Classes
    RandomTraverser → Iterator

  61. def nonEmpty: Boolean

    Definition Classes
    TraversableOnce → GenTraversableOnce

  62. final def notify(): Unit

    Definition Classes
    AnyRef

  63. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  64. def padTo[A1 >: V](len: Int, elem: A1): Iterator[A1]

    Definition Classes
    Iterator

  65. def partition(p: (V) ⇒ Boolean): (Iterator[V], Iterator[V])

    Definition Classes
    Iterator

  66. def patch[B >: V](from: Int, patchElems: Iterator[B], replaced: Int): Iterator[B]

    Definition Classes
    Iterator

  67. def product[B >: V](implicit num: Numeric[B]): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  68. def reduce[A1 >: V](op: (A1, A1) ⇒ A1): A1

    Definition Classes
    TraversableOnce → GenTraversableOnce

  69. def reduceLeft[B >: V](op: (B, V) ⇒ B): B

    Definition Classes
    TraversableOnce

  70. def reduceLeftOption[B >: V](op: (B, V) ⇒ B): Option[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  71. def reduceOption[A1 >: V](op: (A1, A1) ⇒ A1): Option[A1]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  72. def reduceRight[B >: V](op: (V, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  73. def reduceRightOption[B >: V](op: (V, B) ⇒ B): Option[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  74. def reversed: List[V]

    Attributes
    protected[this]
    Definition Classes
    TraversableOnce

  75. def sameElements(that: Iterator[_]): Boolean

    Definition Classes
    Iterator

  76. def scanLeft[B](z: B)(op: (B, V) ⇒ B): Iterator[B]

    Definition Classes
    Iterator

  77. def scanRight[B](z: B)(op: (V, B) ⇒ B): Iterator[B]

    Definition Classes
    Iterator

  78. def seenBefore(id: Int): Boolean

    Attributes
    protected

  79. def seq: Iterator[V]

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  80. def size: Int

    Definition Classes
    TraversableOnce → GenTraversableOnce

  81. def slice(from: Int, until: Int): Iterator[V]

    Definition Classes
    Iterator

  82. def sliding[B >: V](size: Int, step: Int): GroupedIterator[B]

    Definition Classes
    Iterator

  83. def span(p: (V) ⇒ Boolean): (Iterator[V], Iterator[V])

    Definition Classes
    Iterator

  84. def sum[B >: V](implicit num: Numeric[B]): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  85. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef

  86. def take(n: Int): Iterator[V]

    Definition Classes
    Iterator

  87. def takeWhile(p: (V) ⇒ Boolean): Iterator[V]

    Definition Classes
    Iterator

  88. def to[Col[_]](implicit cbf: CanBuildFrom[Nothing, V, Col[V]]): Col[V]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  89. def toArray[B >: V](implicit arg0: ClassTag[B]): Array[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  90. def toBuffer[B >: V]: Buffer[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  91. def toIndexedSeq: IndexedSeq[V]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  92. def toIterable: Iterable[V]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  93. def toIterator: Iterator[V]

    Definition Classes
    Iterator → GenTraversableOnce

  94. def toList: List[V]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  95. def toMap[T, U](implicit ev: <:<[V, (T, U)]): Map[T, U]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  96. def toSeq: Seq[V]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  97. def toSet[B >: V]: Set[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  98. def toStream: Stream[V]

    Definition Classes
    Iterator → GenTraversableOnce

  99. def toString(): String

    Definition Classes
    Iterator → AnyRef → Any

  100. def toTraversable: Traversable[V]

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  101. def toVector: Vector[V]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  102. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  105. def withFilter(p: (V) ⇒ Boolean): Iterator[V]

    Definition Classes
    Iterator

  106. def zip[B](that: Iterator[B]): Iterator[(V, B)]

    Definition Classes
    Iterator

  107. def zipAll[B, A1 >: V, B1 >: B](that: Iterator[B], thisElem: A1, thatElem: B1): Iterator[(A1, B1)]

    Definition Classes
    Iterator

  108. def zipWithIndex: Iterator[(V, Int)]

    Definition Classes
    Iterator

Inherited from Traverser[V]

Inherited from Iterator[V]

Inherited from TraversableOnce[V]

Inherited from GenTraversableOnce[V]

Inherited from AnyRef

Inherited from Any

Ungrouped