scala.collection.mutable

trait ObservableSet

[source: scala/collection/mutable/ObservableSet.scala]

trait ObservableSet[A, This <: ObservableSet[A, This]]
extends Set[A] with Publisher[Message[A] with Undoable, This]
This class is typically used as a mixin. It adds a subscription mechanism to the Set class into which this abstract class is mixed in. Class ObservableSet publishes events of the type Message.
Author
Matthias Zenger
Version
1.0, 08/07/2003
Method Summary
def += (elem : A) : This
Adds a new element to the set.
def -= (elem : A) : This
Removes a single element from a set.
def clear : Unit
Removes all elements from the set. After this operation is completed, the set will be empty.
Methods inherited from Publisher
subscribe, subscribe, suspendSubscription, activateSubscription, removeSubscription, removeSubscriptions, publish
Methods inherited from Set
companion
Methods inherited from Unhashable
hashCode, identityHashCode
Methods inherited from MutableSetTemplate
newBuilder, add, remove, update, retain, clone, result, +, +, ++, ++, -, -, --, --, <<
Methods inherited from Shrinkable
-=, --=, --=
Methods inherited from Builder
sizeHint, mapResult
Methods inherited from Growable
+=, ++=, ++=
Methods inherited from SetTemplate
contains (abstract), isEmpty, apply, intersect, &, **, union, |, diff, &~, subsetOf, equals, stringPrefix, toString
Methods inherited from SetClass
empty
Methods inherited from Function1
compose, andThen
Methods inherited from IterableTemplate
iterator (abstract), elements, foreach, foldRight, reduceRight, toIterable, head, takeRight, dropRight, sameElements, toStream, view, view, first, firstOption, toSeq, projection
Methods inherited from TraversableClass
genericBuilder, unzip, flatten, transpose
Methods inherited from TraversableTemplate
thisCollection, nonEmpty, size, hasDefiniteSize, ++, ++, map, flatMap, filter, filterMap, filterNot, remove, partition, groupBy, forall, exists, count, find, foldLeft, /:, :\, reduceLeft, reduceLeftOption, reduceRightOption, headOption, tail, last, lastOption, init, take, drop, slice, takeWhile, dropWhile, span, splitAt, copyToBuffer, copyToArray, copyToArray, toArray, toList, toSequence, toSet, mkString, mkString, mkString, addString, addString, addString
Methods inherited from AnyRef
getClass, notify, notifyAll, wait, wait, wait, finalize, ==, !=, eq, ne, synchronized
Methods inherited from Any
==, !=, isInstanceOf, asInstanceOf
Method Details
def +=(elem : A) : This
Adds a new element to the set.
Parameters
elem - the element to be added

def -=(elem : A) : This
Removes a single element from a set.
Parameters
elem - The element to be removed.

def clear : Unit
Removes all elements from the set. After this operation is completed, the set will be empty.