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

Properties

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

Constructors

UnmodifiableMapView(Map<K,V> map)
const

Operators

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

Methods

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.
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.
putIfAbsent(K key, V ifAbsent()) → V
inherited
Look up the value of key, or add a new value if it isn't there.
remove(Object key) → V
inherited
Removes key and its associated value, if present, from the map.
toString() → String
inherited
Returns a string representation of this object.