ListMultimap<K, V> class

A multimap that stores values in a List, and that maintains the insertion order of values of a given key. A factory can be provided to create custom value collections.

Constructors

ListMultimap({Map<K, List<V>>? map, Factory<List<V>>? factory})

Creates an empty ListMultimap with the keys held in map and the values in a collection built with factory.

ListMultimap.fromEntries(Iterable<MapEntry<K, V>> entries, {Map<K, List<V>>? map, Factory<List<V>>? factory})

Creates a ListMultimap containing the entries of entries.

factory

ListMultimap.fromIterable(Iterable<Object?> iterable, {K key(Object? element)?, V value(Object? element)?, Map<K, List<V>>? map, Factory<List<V>>? factory})

Creates a ListMultimap with the keys and values from iterable.

factory

ListMultimap.fromIterables(Iterable<K> keys, Iterable<V> values, {Map<K, List<V>>? map, Factory<List<V>>? factory})

factory

ListMultimap.identity({Factory<List<V>>? factory})

Creates a ListMultimap with identity keys.

factory

ListMultimap.of(Multimap<K, V, Iterable<V>> other, {Map<K, List<V>>? map, Factory<List<V>>? factory})

Creates a ListMultimap with the same keys and values as other.

factory

Properties

hashCode → int

The hash code for this object.

no setter, inherited

isEmpty → bool

Returns true if there are no values in this multimap.

no setter, inherited

isNotEmpty → bool

Returns true if there is at leas one value in this multimap.

no setter, inherited

keys → Iterable<K>

The unique keys of this multimap.

no setter, inherited

length → int

Returns the total number of values in this multimap.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

values → Iterable<V>

The values of this multimap.

no setter, inherited

Methods

add(K key, V value) → void

Adds an association from key to value.

inherited

addAll(K key, Iterable<V> values) → void

Adds associations from key to each of values.

inherited

asMap() → Map<K, List<V>>

Returns a mutable view onto the underlying map.

inherited

clear() → void

Removes all values from this multimap.

inherited

containsKey(K? key) → bool

Returns true if this map contains the given key.

inherited

containsValue(V? value) → bool

Returns true if this map contains the given value.

inherited

forEach(void callback(K key, V value)) → void

Applies callback to each key/value of this multimap.

inherited

lookupValues(K key) → ListMultimapValues<K, V>

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

remove(K key, V value) → void

Removes one association from key to value.

inherited

removeAll(K key, [Iterable<V>? values]) → void

Removes associations from key to each of values.

inherited

replace(K key, V value) → void

Replaces the key with a single value.

inherited

replaceAll(K key, Iterable<V> values) → void

Replaces the key with each of the values.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

operator [](K key) → List<V>

Returns the values for the given key.

inherited