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.

Inheritance

Constructors

UnmodifiableMapView(Map<K, V> map)

Properties

hashCode int

The hash code for this object.

read-only, inherited
isEmpty bool

read-only, inherited
isNotEmpty bool

read-only, inherited
keys Iterable<K>

read-only, inherited
length int

read-only, inherited
runtimeType Type

A representation of the runtime type of the object.

read-only, inherited
values Iterable<V>

read-only, inherited

Operators

operator ==(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

Associates the key with the given value.

inherited

Methods

addAll(Map<K, V> other) → 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
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
toString() String

Returns a string representation of this object.

inherited