Scala Library
scala.collection.mutable

class PriorityQueueProxy
[source: scala/collection/mutable/PriorityQueueProxy.scala]
abstract class PriorityQueueProxy[A](implicit ord : Ordering[A])
extends PriorityQueue[A] with Proxy
This class implements priority queues using a heap. The elements of the queue have to be ordered in terms of the Ordered[T] class.
Author
Matthias Zenger
Version
1.0, 03/05/2004
Since
1
Values and Variables inherited from ResizableArray
array, size0
Method Summary
override def ++= (it : Iterator[A]) : PriorityQueueProxy[A]
Adds all elements provided by an iterator into the priority queue.
def ++= (iter : Iterable[A]) : PriorityQueueProxy[A]
Adds all elements provided by an Iterable object into the priority queue.
override def += (elem : A) : PriorityQueueProxy[A]
Inserts a single element into the priority queue.
override def clear : Unit
Removes all elements from the queue. After this operation is completed, the queue will be empty.
override def clone : PriorityQueue[A]
This method clones the priority queue.
override def dequeue : A
Returns the element with the highest priority in the queue, and removes this element from the queue.
override def enqueue (elems : A*) : Unit
Adds all elements to the queue.
override def isEmpty : Boolean
Checks if the queue is empty.
override def iterator : Iterator[A]
Creates a new iterator over all elements contained in this object.
override def length : Int
Returns the length of this priority queue.
override def max : A
Returns the element with the highest priority in the queue, or throws an error if there is no element contained in the queue.
abstract def self : PriorityQueue[A]
override def toQueue : Queue[A]
Returns a regular queue containing the same elements.
Methods inherited from Proxy
hashCode, equals, toString
Methods inherited from PriorityQueue
repr, foreach, fixUp, fixDown, +, +, ++, ++, toList
Methods inherited from Growable
+=, ++=
Methods inherited from ResizableArray
companion, initialSize, apply, update, copyToArray, reduceToSize, ensureSize, swap, copy
Methods inherited from IndexedSeqLike
thisCollection, toCollection, view, view
Methods inherited from IndexedSeqLike
forall, exists, find, foldLeft, foldRight, reduceLeft, reduceRight, zip, zipWithIndex, slice, head, tail, last, init, take, drop, takeRight, dropRight, splitAt, takeWhile, dropWhile, span, sameElements, lengthCompare, segmentLength, indexWhere, lastIndexWhere, reverse, reverseIterator, startsWith, endsWith
Methods inherited from SeqLike
size, isDefinedAt, prefixLength, indexWhere, findIndexOf, indexOf, indexOf, lastIndexOf, lastIndexOf, lastIndexWhere, reverseMap, reversedElements, startsWith, indexOfSeq, indexOfSeq, lastIndexOfSeq, lastIndexOfSeq, contains, union, diff, intersect, removeDuplicates, patch, updated, +:, :+, padTo, sortWith, sortWith, sortBy, toSeq, indices, findLastIndexOf, equalsWith, containsSlice, projection
Methods inherited from PartialFunction
orElse, andThen
Methods inherited from Function1
compose
Methods inherited from IterableLike
elements, toIterable, zipAll, toStream, canEqual, first, firstOption
Methods inherited from GenericTraversableTemplate
newBuilder, genericBuilder, unzip, flatten, transpose
Methods inherited from TraversableLike
nonEmpty, hasDefiniteSize, ++, ++, map, flatMap, filter, filterNot, partialMap, remove, partition, groupBy, count, /:, :\, reduceLeftOption, reduceRightOption, sum, product, min, max, headOption, lastOption, copyToBuffer, copyToArray, toArray, toIndexedSeq, toSet, mkString, mkString, mkString, addString, addString, addString, stringPrefix, withFilter
Methods inherited from AnyRef
getClass, notify, notifyAll, wait, wait, wait, finalize, ==, !=, eq, ne, synchronized
Methods inherited from Any
==, !=, isInstanceOf, asInstanceOf
Method Details
abstract def self : PriorityQueue[A]
Overrides
Proxy.self
override def iterator : Iterator[A]
Creates a new iterator over all elements contained in this object.
Returns
the new iterator
Overrides
PriorityQueue.iterator
override def length : Int
Returns the length of this priority queue.
Overrides
PriorityQueue.length
override def isEmpty : Boolean
Checks if the queue is empty.
Returns
true, iff there is no element in the queue.
Overrides
PriorityQueue.isEmpty
override def +=(elem : A) : PriorityQueueProxy[A]
Inserts a single element into the priority queue.
Parameters
elem - the element to insert
Overrides
PriorityQueue.+=
def ++=(iter : Iterable[A]) : PriorityQueueProxy[A]
Adds all elements provided by an Iterable object into the priority queue.
Parameters
iter - an iterable object
override def ++=(it : Iterator[A]) : PriorityQueueProxy[A]
Adds all elements provided by an iterator into the priority queue.
Parameters
it - an iterator
override def enqueue(elems : A*) : Unit
Adds all elements to the queue.
Parameters
elems - the elements to add.
Overrides
PriorityQueue.enqueue
override def dequeue : A
Returns the element with the highest priority in the queue, and removes this element from the queue.
Returns
the element with the highest priority.
Overrides
PriorityQueue.dequeue
override def max : A
Returns the element with the highest priority in the queue, or throws an error if there is no element contained in the queue.
Returns
the element with the highest priority.
Overrides
PriorityQueue.max
override def clear : Unit
Removes all elements from the queue. After this operation is completed, the queue will be empty.
Overrides
PriorityQueue.clear
override def toQueue : Queue[A]
Returns a regular queue containing the same elements.
Overrides
PriorityQueue.toQueue
override def clone : PriorityQueue[A]
This method clones the priority queue.
Returns
a priority queue with the same elements.
Overrides
PriorityQueue.clone
Scala Library