Scala Library
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scala/collection/jcl/Map.scala
]
protected
class
Filter(p : (K) => Boolean)
extends
Projection[K, E]Method Summary | |
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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filterKeys
(p0 : (K) => Boolean) : Projection[K, E]
non-strict filter based on keys only
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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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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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Methods inherited from Projection | |
projection, map |
Methods inherited from Map | |
clear, isEmpty, keySet, keys, valueSet, ++=, has, update, +, +=, -, remove, -=, lense |
Methods inherited from Map | |
+=, ++=, +, ++, ++, -=, --=, --=, -, --, --, getOrElseUpdate, transform, retain, <<, clone, readOnly, +=, incl, excl |
Methods inherited from Map | |
getOrElse, apply, isDefinedAt, values, equals, hashCode, toString, default, mapElements, stringPrefix |
Methods inherited from PartialFunction | |
orElse, andThen |
Methods inherited from Function1 | |
compose |
Methods inherited from Projection | |
filter |
Methods inherited from Projection | |
force, flatMap, takeWhile, append |
Methods inherited from MutableIterable | |
removeAll, --, -, retainOnly, retainAll, size0 |
Methods inherited from Collection | |
toArray |
Methods inherited from Iterable | |
concat, ++, partition, 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 |
Method Details |
override
def
elements : MutableIterator[(K, E)]
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 mapkey
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 interestoverride
def
filterKeys(p0 : (K) => Boolean) : Projection[K, E]
override
def
size : Int
Scala Library
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