- Dart
- dart:collection
- UnmodifiableMapView<K, V> class
UnmodifiableMapView<K, V> class
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.
Methods
-
cast<RK, RV>()
→ Map<RK, RV>
-
Provides a view of this map as having
RK keys and RV instances,
if necessary. [...]
override
-
addAll(Map<K, V> other)
→ void
-
This operation is not supported by an unmodifiable map.
inherited
-
addEntries(Iterable<MapEntry<K, V>> entries)
→ void
-
This operation is not supported by an unmodifiable map.
inherited
-
clear()
→ void
-
This operation is not supported by an unmodifiable map.
inherited
-
containsKey(Object key)
→ bool
-
Returns true if this map contains the given
key. [...]
inherited
-
containsValue(Object value)
→ bool
-
Returns true if this map contains the given
value. [...]
inherited
-
forEach(void action(K key, V value))
→ void
-
Applies
f to each key/value pair of the map. [...]
inherited
-
map<K2, V2>(MapEntry<K2, V2> transform(K key, V value))
→ Map<K2, V2>
-
Returns a new map where all entries of this map are transformed by
the given
f function.
inherited
-
noSuchMethod(Invocation invocation)
→ dynamic
-
Invoked when a non-existent method or property is accessed. [...]
inherited
-
putIfAbsent(K key, V ifAbsent())
→ V
-
This operation is not supported by an unmodifiable map.
inherited
-
remove(Object key)
→ V
-
This operation is not supported by an unmodifiable map.
inherited
-
removeWhere(bool test(K key, V value))
→ void
-
This operation is not supported by an unmodifiable map.
inherited
-
toString()
→ String
-
Returns a string representation of this object.
inherited
-
update(K key, V update(V value), { V ifAbsent() })
→ V
-
This operation is not supported by an unmodifiable map.
inherited
-
updateAll(V update(K key, V value))
→ void
-
This operation is not supported by an unmodifiable map.
inherited
Operators
-
operator ==(dynamic other)
→ bool
-
The equality operator. [...]
inherited
-
operator [](Object key)
→ V
-
Returns the value for the given
key or null if key is not in the map. [...]
inherited
-
operator []=(K key, V value)
→ void
-
This operation is not supported by an unmodifiable map.
inherited