Scala Library
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scala/collection/jcl/MapWrapper.scala
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trait
MapWrapper[K, E]
extends
Map[K, E]Method Summary | |
override def
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++=
(that : Iterable[(K, E)]) : Unit
Add a sequence of key/value pairs to this map.
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override def
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clear
: Unit
Removes all mappings from the map. After this operation is
completed, the map is empty.
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override def
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contains
(key : K) : Boolean
Is the given key mapped to a value by this map?
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override def
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elements
: MutableIterator[(K, E)]
The default implementation of a map over mutable iterable collections.
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override def
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equals
(that : Any) : Boolean
Compares two maps structurally; i.e. checks if all mappings
contained in this map are also contained in the other map,
and vice versa.
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override def
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get
(key : K) : Option[E]
Check if this map maps
key to a value and return the
value if it exists. |
override def
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hashCode
: Int
A hash method compatible with
equals |
override def
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isEmpty
: Boolean
Is this an empty map?
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override def
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keySet : Projection[K] |
override def
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put
(key : K, elem : E) : Option[E]
Map
key to elem in this map and return the element
that the key was previously mapped to (if any). |
override def
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removeKey
(key : K) : Option[E]
Remove
key from this map and return the element
that the key was previously mapped to (if any). |
override def
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size
: Int
Compute the number of key-to-value mappings.
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override def
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toString
: java.lang.String
Creates a string representation for this map.
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abstract def
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underlying : java.util.Map[K, E] |
override def
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valueSet
: Projection[E]
The values of this map as a projection, which means
removals from the returned collection will remove the element from this map.
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Methods inherited from Map | |
keys, has, update, +, +=, -, remove, -=, projection, lense, filterKeys |
Methods inherited from Map | |
+=, ++=, +, ++, ++, -=, --=, --=, -, --, --, getOrElseUpdate, transform, retain, <<, clone, readOnly, +=, incl, excl |
Methods inherited from Map | |
getOrElse, apply, isDefinedAt, values, default, mapElements, stringPrefix |
Methods inherited from PartialFunction | |
orElse, andThen |
Methods inherited from Function1 | |
compose |
Methods inherited from MutableIterable | |
removeAll, --, -, retainOnly, retainAll, size0 |
Methods inherited from Collection | |
toArray |
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 AnyRef | |
getClass, notify, notifyAll, wait, wait, wait, finalize, ==, !=, eq, ne, synchronized |
Methods inherited from Any | |
==, !=, isInstanceOf, asInstanceOf |
Class Summary | |
class
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IteratorWrapper
extends MutableIterator[(K, E)]
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class
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KeySet
extends KeySet with SetWrapper[K] with Projection[K]
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class
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ValueSet
extends IterableWrapper[E] with Projection[E]
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Method Details |
abstract
def
underlying : java.util.Map[K, E]
override
def
size : Int
override
def
isEmpty : Boolean
true
iff the map is empty.override
def
clear : Unit
key
to elem
in this map and return the element
that the key was previously mapped to (if any).key
to a value and return the
value if it exists.key -
the key of the mapping of interestkvs -
the iterable object containing all key/value pairs.key
from this map and return the element
that the key was previously mapped to (if any).key -
the keytrue
iff there is a mapping for key in this mapoverride
def
keySet : Projection[K]
override
def
valueSet : Projection[E]
override
def
elements : MutableIterator[(K, E)]
override
def
toString : java.lang.String
override
def
hashCode : Int
equals
that -
the other maptrue
iff both maps contain exactly the same mappings.
Scala Library
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