Scala Library Documentation
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scala/collection/jcl/Map.scala
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protected
class
Lense[F](f : (E) => F, g : (F) => E)
extends
Map[K, F]Method Summary | |
override def
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elements
: MutableIterator[(K, F)]
Creates a new iterator over all elements contained in this
object.
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override def
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get
(key : K) : Option[F]
Check if this map maps
key to a value and return the
value if it exists. |
override def
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lense [G](f0 : (F) => G, g0 : (G) => F) : Map[K, G] |
override def
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projection
: Projection
returns a facade that can be used to call non-strict
filter ,
map , and flatMap methods that build projections
of the collection. |
override def
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put (key : K, elem : F) : Option[F] |
override def
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remove (key : K) : Option[F] |
override def
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size
: Int
Compute the number of key-to-value mappings.
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Methods inherited from Map | |
clear, isEmpty, keySet, keys, valueSet, putAll, has, update, +, +=, -, -= |
Methods inherited from Map | |
+=, ++=, ++=, +, ++, ++, -=, --=, --=, -, --, --, getOrElseUpdate, transform, retain, <<, clone, +=, incl, excl |
Methods inherited from Map | |
getOrElse, apply, contains, isDefinedAt, values, equals, hashCode, toString, default |
Methods inherited from PartialFunction | |
orElse, andThen |
Methods inherited from Function1 | |
compose |
Methods inherited from MutableIterable | |
remove, removeAll, --, -, retain, retainAll, size0 |
Methods inherited from Collection | |
toArray, stringPrefix |
Methods inherited from Iterable | |
concat, ++, map, flatMap, filter, takeWhile, dropWhile, take, drop, foreach, forall, exists, find, findIndexOf, indexOf, foldLeft, foldRight, /:, :\, reduceLeft, reduceRight, copyToBuffer, sameElements, toList, mkString, mkString, addString, addString, copyToArray, hasDefiniteSize |
Methods inherited from AnyRef | |
getClass, notify, notifyAll, wait, wait, wait, finalize, ==, !=, eq, ne, synchronized |
Methods inherited from Any | |
==, !=, isInstanceOf, asInstanceOf |
Class Summary | |
trait
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Projection
extends Projection
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Method Details |
override
def
elements : MutableIterator[(K, F)]
key
to a value and return the
value if it exists.key -
the key of the mapping of interestoverride
def
projection : Projection
filter
,
map
, and flatMap
methods that build projections
of the collection.override
def
size : Int
Scala Library Documentation
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