Scala Library
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scala/collection/jcl/Set.scala
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trait
Set[A]
extends
Set[A] with
Collection[A]Method Summary | |
override def
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+
(t : A) : Set[A]
adds "a" from the collection. Useful for chaining.
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override def
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++
(i : Iterable[A]) : Set[A]
Operator shortcut for addAll.
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override def
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- (t : A) : Set[A] |
override def
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--
(i : Iterable[A]) : Set[A]
Operator shortcut for removeAll.
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override abstract def
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add
(a : A) : Boolean
Add will return false if "a" already exists in the set.
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override def
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clear
: Unit
clear all elements from the collection.
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final def
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contains
(a : A) : Boolean
Checks if this set contains element
elem . |
override def
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isEmpty
: Boolean
Checks if this set is empty.
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override def
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projection
: Projection[A]
returns a projection that can be used to call non-strict
filter ,
map , and flatMap methods that build projections
of the collection. |
override final def
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retain
(f : (A) => Boolean) : Unit
Method
retain removes all elements from the set for
which the predicate |
override def
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subsetOf
(set : Set[A]) : Boolean
Checks if this set is a subset of set
that . |
override def
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transform
(f : (A) => A) : Boolean
Transforms each element of the collection in-place according to
f . |
Methods inherited from Collection | |
hasAll, addAll, -=, += |
Methods inherited from MutableIterable | |
elements (abstract), has, remove, removeAll, retainOnly, retainAll, size0 |
Methods inherited from Set | |
update, +=, ++=, ++=, +, ++, incl, -=, --=, --=, -, --, excl, intersect, <<, clone, readOnly |
Methods inherited from Set | |
size (abstract), apply, *, **, equals, hashCode, toArray, stringPrefix |
Methods inherited from Collection | |
toString |
Methods inherited from Iterable | |
concat, ++, map, flatMap, filter, partition, takeWhile, dropWhile, take, drop, foreach, forall, exists, find, findIndexOf, indexOf, foldLeft, foldRight, /:, :\, reduceLeft, reduceRight, copyToBuffer, sameElements, toList, toSeq, toStream, mkString, mkString, mkString, addString, addString, addString, copyToArray, hasDefiniteSize |
Methods inherited from Function1 | |
compose, andThen |
Methods inherited from AnyRef | |
getClass, notify, notifyAll, wait, wait, wait, finalize, ==, !=, eq, ne, synchronized |
Methods inherited from Any | |
==, !=, isInstanceOf, asInstanceOf |
Class Summary | |
class
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Filter
(pp : (A) => Boolean) extends Filter with Projection[A]
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Method Details |
elem
.elem -
the element to check for membership.true
iff elem
is contained in this set.retain removes all elements from the set for
which the predicate p
yields the value false
.
override
def
isEmpty : Boolean
true
iff there is no element in the set.override
def
clear : Unit
that
.that -
another set.true
iff the other set is a superset of this set.
todo: rename to isSubsetOff
.f -
true
if the collection is actually updated.override
def
projection : Projection[A]
filter
,
map
, and flatMap
methods that build projections
of the collection.
Scala Library
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