UnmodifiableMapView<K, V> class

View of a Map that disallow modifying the map.

View of a Map that disallow modifying the map.

A wrapper around a Map that forwards all members to the map provided in the constructor, except for operations that modify the map. Modifying operations throw instead.

Extends

Constructors

UnmodifiableMapView(Map<K,V> map)
const

Instance Properties

isEmpty bool Inherited
read-only
isNotEmpty bool Inherited
read-only
length int Inherited
read-only
keys Iterable<K> Inherited
read-only
values Iterable<V> Inherited
read-only
keys Iterable<K> Inherited
read-only
values Iterable<V> Inherited
read-only

Instance Methods

toString() → String Inherited
Returns a string representation of this object.
addAll(Map<K,V> other) → void Inherited
Adds all key-value pairs of [other] to this map.
clear() → void Inherited
Removes all pairs from the map.
putIfAbsent(K key, V ifAbsent()) → V Inherited
Look up the value of [key], or add a new value if it isn't there.
containsKey(Object key) → bool Inherited
Returns true if this map contains the given [key].
containsValue(Object value) → bool Inherited
Returns true if this map contains the given [value].
forEach(void action(K key, V value)) → void Inherited
Applies [f] to each key-value pair of the map.
remove(Object key) → V Inherited
Removes [key] and its associated value, if present, from the map.
remove(Object key) → V Inherited
Removes [key] and its associated value, if present, from the map.
clear() → void Inherited
Removes all pairs from the map.
addAll(Map<K,V> other) → void Inherited
Adds all key-value pairs of [other] to this map.
forEach(void action(K key, V value)) → void Inherited
Applies [f] to each key-value pair of the map.
putIfAbsent(K key, V ifAbsent()) → V Inherited
Look up the value of [key], or add a new value if it isn't there.

Operators

operator []=(K key, V value) → void Inherited
Associates the [key] with the given [value].
operator [](Object key) → V Inherited
Returns the value for the given [key] or null if [key] is not in the map.