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.
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
keyor null ifkeyis not in the map.inherited -
operator []=(
K key, V value) → void -
Associates the
keywith the givenvalue.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
fto 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