com.twitter.cassovary.graph

DepthFirstTraverser

class DepthFirstTraverser extends DepthTracker with BoundedIterator[Node]

Traverses in DFS order (every node can be visited only once).

Linear Supertypes
BoundedIterator[Node], DepthTracker, QueueBasedTraverser, Traverser, Iterator[Node], TraversableOnce[Node], GenTraversableOnce[Node], AnyRef, Any
Known Subclasses
Ordering
  1. Alphabetic
  2. By inheritance
Inherited
  1. DepthFirstTraverser
  2. BoundedIterator
  3. DepthTracker
  4. QueueBasedTraverser
  5. Traverser
  6. Iterator
  7. TraversableOnce
  8. GenTraversableOnce
  9. AnyRef
  10. Any
  1. Hide All
  2. Show all
Learn more about member selection
Visibility
  1. Public
  2. All

Instance Constructors

  1. new DepthFirstTraverser(graph: Graph, dir: GraphDir, homeNodeIds: Seq[Int], walkLimits: Limits = ...)

    graph

    the graph to traverse on

    dir

    direction in which to traverse

    homeNodeIds

    the ids of nodes that the walk starts from

    walkLimits

    limiting parameters

Type Members

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

    Definition Classes
    Iterator

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 >: Node](that: ⇒ GenTraversableOnce[B]): Iterator[B]

    Definition Classes
    Iterator
  5. def /:[B](z: B)(op: (B, Node) ⇒ B): B

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

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

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

    Definition Classes
    Any
  9. object GraphTraverserNodePriority extends Enumeration

    The priority of nodes adding to the queue.

  10. def addString(b: StringBuilder): StringBuilder

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

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

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

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

    Definition Classes
    Any
  15. def buffered: BufferedIterator[Node]

    Definition Classes
    Iterator
  16. def chooseNodesToEnqueue(node: Node): Seq[Int]

    Returns nodes ids that should be added to the queue after visiting node.

    Returns nodes ids that should be added to the queue after visiting node.

    Definition Classes
    QueueBasedTraverser
  17. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  18. def collect[B](pf: PartialFunction[Node, 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.

  19. def collectFirst[B](pf: PartialFunction[Node, B]): Option[B]

    Definition Classes
    TraversableOnce
  20. lazy val coloring: NodeColoring

    We mark nodes using 3 'colors': Unenqueued, Enqueued, Visited.

    We mark nodes using 3 'colors': Unenqueued, Enqueued, Visited. Initially every node is implicitly marked with Unenqueued.

    Node is marked Enqueued, when we add it to the queue. We mark it Visited just before returning with iterator's next function.

    Definition Classes
    QueueBasedTraverser
  21. def contains(elem: Any): Boolean

    Definition Classes
    Iterator
  22. def copyToArray[B >: Node](xs: Array[B], start: Int, len: Int): Unit

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  23. def copyToArray[B >: Node](xs: Array[B]): Unit

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

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

    Definition Classes
    TraversableOnce
  26. def corresponds[B](that: GenTraversableOnce[B])(p: (Node, B) ⇒ Boolean): Boolean

    Definition Classes
    Iterator
  27. def count(p: (Node) ⇒ Boolean): Int

    Definition Classes
    TraversableOnce → GenTraversableOnce
  28. lazy val degreeLimit: Limit

    Definition Classes
    QueueBasedTraverser
  29. def depth(id: Int): Option[Int]

    Depth of visit of a given node.

    Depth of visit of a given node.

    Definition Classes
    DepthTrackerQueueBasedTraverser
  30. lazy val depthLimit: Limit

    Definition Classes
    QueueBasedTraverser
  31. val dir: GraphDir

    direction in which to traverse

    direction in which to traverse

    Definition Classes
    DepthFirstTraverserQueueBasedTraverser
  32. def drop(n: Int): Iterator[Node]

    Definition Classes
    Iterator
  33. def dropWhile(p: (Node) ⇒ Boolean): Iterator[Node]

    Definition Classes
    Iterator
  34. def duplicate: (Iterator[Node], Iterator[Node])

    Definition Classes
    Iterator
  35. def enqueue(nodes: Seq[Int], from: Option[Int]): Unit

    Enqueues nodes added after from node is visited (or None when equeueing initial nodes).

    Enqueues nodes added after from node is visited (or None when equeueing initial nodes).

    Attributes
    protected
    Definition Classes
    DepthTrackerQueueBasedTraverser
  36. final def eq(arg0: AnyRef): Boolean

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

    Definition Classes
    AnyRef → Any
  38. def exists(p: (Node) ⇒ Boolean): Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  39. def filter(p: (Node) ⇒ Boolean): Iterator[Node]

    Definition Classes
    Iterator
  40. def filterNot(p: (Node) ⇒ Boolean): Iterator[Node]

    Definition Classes
    Iterator
  41. def finalize(): Unit

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

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  43. final def findNextNodeToVisit(): Option[Int]

    Seeks the next node that should be visited.

    Seeks the next node that should be visited. We may need to skip some nodes, because it is possible that we add a node to the queue twice.

    Takes already visited nodes from the queue. Does not take the next node from the queue (in order to allow hasNext checking).

    Definition Classes
    DepthFirstTraverserQueueBasedTraverser
    Annotations
    @tailrec()
  44. def flatMap[B](f: (Node) ⇒ GenTraversableOnce[B]): Iterator[B]

    Definition Classes
    Iterator
  45. def fold[A1 >: Node](z: A1)(op: (A1, A1) ⇒ A1): A1

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

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

    Definition Classes
    TraversableOnce → GenTraversableOnce
  48. def forall(p: (Node) ⇒ Boolean): Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  49. def foreach[U](f: (Node) ⇒ U): Unit

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  50. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  51. def getExistingNodeById(graph: Graph, id: Int): Node

    Traverser only visits node Ids listed in some node's edges, and thus we know that node must exist, safe to assume graph.

    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
  52. val graph: Graph

    the graph to traverse on

    the graph to traverse on

    Definition Classes
    DepthFirstTraverserQueueBasedTraverser
  53. def grouped[B >: Node](size: Int): GroupedIterator[B]

    Definition Classes
    Iterator
  54. def handleVisitedInQueue(next: Int): Unit

  55. def hasDefiniteSize: Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  56. def hasNext: Boolean

    Definition Classes
    BoundedIterator → Iterator
  57. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  58. val homeNodeIds: Seq[Int]

    the ids of nodes that the walk starts from

    the ids of nodes that the walk starts from

    Definition Classes
    DepthFirstTraverserQueueBasedTraverser
  59. def indexOf[B >: Node](elem: B): Int

    Definition Classes
    Iterator
  60. def indexWhere(p: (Node) ⇒ Boolean): Int

    Definition Classes
    Iterator
  61. def isEmpty: Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  62. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  63. def isTraversableAgain: Boolean

    Definition Classes
    Iterator → GenTraversableOnce
  64. def length: Int

    Definition Classes
    Iterator
  65. def limitAddedToQueue(nodes: Seq[Int]): Seq[Int]

    If the queue is longer than the number of nodes that can be visited due to maxSteps bound, cuts the list of nodes that are to be added to the queue in order not to add too many of them.

    If the queue is longer than the number of nodes that can be visited due to maxSteps bound, cuts the list of nodes that are to be added to the queue in order not to add too many of them.

    Assumes that all nodes in the queue are being visited.

    Definition Classes
    DepthFirstTraverserQueueBasedTraverser
  66. lazy val limits: Limits

  67. def map[B](f: (Node) ⇒ B): Iterator[B]

    Definition Classes
    Iterator
  68. def max[B >: Node](implicit cmp: Ordering[B]): Node

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

    Definition Classes
    TraversableOnce → GenTraversableOnce
  70. lazy val maxSteps: Option[Long]

    Definition Classes
    QueueBasedTraverser
  71. def min[B >: Node](implicit cmp: Ordering[B]): Node

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

    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 next(): Node

    Definition Classes
    BoundedIterator → Iterator
  78. def nodePriority: QueueBasedTraverser.GraphTraverserNodePriority.Value

    The priority of nodes adding to the queue.

    The priority of nodes adding to the queue.

    Definition Classes
    DepthFirstTraverserQueueBasedTraverser
  79. def nonEmpty: Boolean

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

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

    Definition Classes
    AnyRef
  82. var numEnqueuedEver: Long

    Number of nodes ever enqueued in the queue.

    Number of nodes ever enqueued in the queue.

    Attributes
    protected
    Definition Classes
    QueueBasedTraverser
  83. def padTo[A1 >: Node](len: Int, elem: A1): Iterator[A1]

    Definition Classes
    Iterator
  84. def partition(p: (Node) ⇒ Boolean): (Iterator[Node], Iterator[Node])

    Definition Classes
    Iterator
  85. def patch[B >: Node](from: Int, patchElems: Iterator[B], replaced: Int): Iterator[B]

    Definition Classes
    Iterator
  86. lazy val prevNbrCounter: Option[PrevNbrCounter]

    Optional counter of previous nodes to a given node.

    Optional counter of previous nodes to a given node.

    Definition Classes
    QueueBasedTraverser
  87. def processNode(node: Node): Node

    Performs action needed when visiting a node.

    Performs action needed when visiting a node.

    Attributes
    protected
    Definition Classes
    QueueBasedTraverser
  88. def product[B >: Node](implicit num: Numeric[B]): B

    Definition Classes
    TraversableOnce → GenTraversableOnce
  89. val queue: IntArrayFIFOQueue

    Queue that stores nodes to be visited next.

    Queue that stores nodes to be visited next.

    Attributes
    protected
    Definition Classes
    QueueBasedTraverser
  90. def reduce[A1 >: Node](op: (A1, A1) ⇒ A1): A1

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

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

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

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

    Definition Classes
    TraversableOnce → GenTraversableOnce
  95. def reduceRightOption[B >: Node](op: (Node, B) ⇒ B): Option[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  96. def reversed: List[Node]

    Attributes
    protected[this]
    Definition Classes
    TraversableOnce
  97. def sameElements(that: Iterator[_]): Boolean

    Definition Classes
    Iterator
  98. def scanLeft[B](z: B)(op: (B, Node) ⇒ B): Iterator[B]

    Definition Classes
    Iterator
  99. def scanRight[B](z: B)(op: (Node, B) ⇒ B): Iterator[B]

    Definition Classes
    Iterator
  100. def seq: Iterator[Node]

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  101. val shouldBeDequeuedBeforeProcessing: Boolean

    Set to true to deque a node from the queue before processing.

    Set to true to deque a node from the queue before processing.

    Definition Classes
    QueueBasedTraverser
  102. def shouldBeEnqueued(color: Color): Boolean

    Checks if the node of a given color should be enqueued.

    Checks if the node of a given color should be enqueued.

    Definition Classes
    DepthFirstTraverserQueueBasedTraverser
  103. def size: Int

    Definition Classes
    TraversableOnce → GenTraversableOnce
  104. def slice(from: Int, until: Int): Iterator[Node]

    Definition Classes
    Iterator
  105. def sliding[B >: Node](size: Int, step: Int): GroupedIterator[B]

    Definition Classes
    Iterator
  106. def span(p: (Node) ⇒ Boolean): (Iterator[Node], Iterator[Node])

    Definition Classes
    Iterator
  107. def sum[B >: Node](implicit num: Numeric[B]): B

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

    Definition Classes
    AnyRef
  109. def take(n: Int): Iterator[Node]

    Definition Classes
    Iterator
  110. def takeWhile(p: (Node) ⇒ Boolean): Iterator[Node]

    Definition Classes
    Iterator
  111. def to[Col[_]](implicit cbf: CanBuildFrom[Nothing, Node, Col[Node]]): Col[Node]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  112. def toArray[B >: Node](implicit arg0: ClassTag[B]): Array[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  113. def toBuffer[B >: Node]: Buffer[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  114. def toIndexedSeq: IndexedSeq[Node]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  115. def toIterable: Iterable[Node]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  116. def toIterator: Iterator[Node]

    Definition Classes
    Iterator → GenTraversableOnce
  117. def toList: List[Node]

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

    Definition Classes
    TraversableOnce → GenTraversableOnce
  119. def toSeq: Seq[Node]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  120. def toSet[B >: Node]: Set[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  121. def toStream: Stream[Node]

    Definition Classes
    Iterator → GenTraversableOnce
  122. def toString(): String

    Definition Classes
    Iterator → AnyRef → Any
  123. def toTraversable: Traversable[Node]

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  124. def toVector: Vector[Node]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  125. def visitNode(node: Node): Unit

    Action performed when visiting node node (before iteratur retuns node).

    Action performed when visiting node node (before iteratur retuns node). Should be implemented in subclass.

    Definition Classes
    DepthFirstTraverserQueueBasedTraverser
  126. final def wait(): Unit

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

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  129. def withFilter(p: (Node) ⇒ Boolean): Iterator[Node]

    Definition Classes
    Iterator
  130. def zip[B](that: Iterator[B]): Iterator[(Node, B)]

    Definition Classes
    Iterator
  131. def zipAll[B, A1 >: Node, B1 >: B](that: Iterator[B], thisElem: A1, thatElem: B1): Iterator[(A1, B1)]

    Definition Classes
    Iterator
  132. def zipWithIndex: Iterator[(Node, Int)]

    Definition Classes
    Iterator

Deprecated Value Members

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

    Definition Classes
    GenTraversableOnce
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) use fold instead

Inherited from BoundedIterator[Node]

Inherited from DepthTracker

Inherited from QueueBasedTraverser

Inherited from Traverser

Inherited from Iterator[Node]

Inherited from TraversableOnce[Node]

Inherited from GenTraversableOnce[Node]

Inherited from AnyRef

Inherited from Any

Ungrouped