CollectiveValueAsync<V> class

An asynchronous wrapper for CollectiveValue operations that provides Future-based APIs.

This class enables non-blocking access to a reactive value container while maintaining all the reactive properties of the underlying CollectiveValue. All mutating operations return Future objects, making them safe to use in asynchronous contexts.

Usage Example

final temperature = CollectiveValue<double>(72.5);
final asyncTemp = temperature.async; // Get async wrapper

// Asynchronous value update
await asyncTemp.setValue(75.0);

Key Features

  • Thread-safe value updates via Futures
  • Maintains reactive binding to parent cells
  • Preserves all validation rules from the source CollectiveValue
  • Seamless integration with async/await patterns
Inheritance
Implemented types
Implementers
Available extensions

Constructors

CollectiveValueAsync.new(CollectiveValue<V> collective)
Creates an async wrapper around an existing CollectiveValue.
const

Properties

async CollectiveValueAsync<V>
Creates a Async CollectiveValue for async modifiable operations
no setteroverride
first → V
The first element.
no setterinherited
firstOrNull → T?

Available on Iterable<T>, provided by the IterableExtensions extension

The first element of this iterator, or null if the iterable is empty.
no setter
hashCode int
The hash code for this object.
no setteroverride
indexed Iterable<(int, T)>

Available on Iterable<T>, provided by the IterableExtensions extension

Pairs of elements of the indices and elements of this iterable.
no setter
isEmpty bool
Whether this collection has no elements.
no setterinherited
isNotEmpty bool
Whether this collection has at least one element.
no setterinherited
iterator Iterator<V>
A new Iterator that allows iterating the elements of this Iterable.
no setterinherited
last → V
The last element.
no setterinherited
lastOrNull → T?

Available on Iterable<T>, provided by the IterableExtensions extension

The last element of this iterable, or null if the iterable is empty.
no setter
length int
The number of elements in this Iterable.
no setterinherited
modifiable Iterable<Function>
Returns an iterable containing modifiable functions.
no setterinherited
nonNulls Iterable<T>

Available on Iterable<T?>, provided by the NullableIterableExtensions extension

The non-null elements of this iterable.
no setter
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
single → V
Checks that this iterable has only one element, and returns that element.
no setterinherited
singleOrNull → T?

Available on Iterable<T>, provided by the IterableExtensions extension

The single element of this iterator, or null.
no setter
test TestCollective<dynamic, Collective>
Gets the test object associated with the cell.
no setteroverride
unmodifiable CollectiveValue<V>
Gets an unmodifiable view of this value.
no setteroverride
value ↔ V?
The value of this CollectiveValue
getter/setter pairoverride
wait Future<List<T>>

Available on Iterable<Future<T>>, provided by the FutureIterable extension

Waits for futures in parallel.
no setter

Methods

any(bool test(V element)) bool
Checks whether any element of this iterable satisfies test.
inherited
apply(Function function, List? positionalArguments, [Map<Symbol, dynamic>? namedArguments]) Future
Asynchronously applies a function through the cell's validation system.
inherited
asNameMap() Map<String, T>

Available on Iterable<T>, provided by the EnumByName extension

Creates a map from the names of enum values to the values.
byName(String name) → T

Available on Iterable<T>, provided by the EnumByName extension

Finds the enum value in this list with name name.
cast<R>() Iterable<R>
A view of this iterable as an iterable of R instances.
inherited
contains(Object? element) bool
Whether the collection contains an element equal to element.
inherited
deputy({covariant TestCollective<dynamic, Collective>? test, covariant MapObject? mapObject}) CollectiveValue<V>
Creates a delegated view with modified behavior.
override
elementAt(int index) → V
Returns the indexth element.
inherited
elementAtOrNull(int index) → T?

Available on Iterable<T>, provided by the IterableExtensions extension

The element at position index of this iterable, or null.
every(bool test(V element)) bool
Checks whether every element of this iterable satisfies test.
inherited
expand<T>(Iterable<T> toElements(V element)) Iterable<T>
Expands each element of this Iterable into zero or more elements.
inherited
firstWhere(bool test(V element), {V orElse()?}) → V
The first element that satisfies the given predicate test.
inherited
fold<T>(T initialValue, T combine(T previousValue, V element)) → T
Reduces a collection to a single value by iteratively combining each element of the collection with an existing value
inherited
followedBy(Iterable<V> other) Iterable<V>
Creates the lazy concatenation of this iterable and other.
inherited
forEach(void action(V element)) → void
Invokes action on each element of this iterable in iteration order.
inherited
join([String separator = ""]) String
Converts each element to a String and concatenates the strings.
inherited
lastWhere(bool test(V element), {V orElse()?}) → V
The last element that satisfies the given predicate test.
inherited
map<T>(T toElement(V e)) Iterable<T>
The current elements of this iterable modified by toElement.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
reduce(V combine(V value, V element)) → V
Reduces a collection to a single value by iteratively combining elements of the collection using the provided function.
inherited
set(V? value) Future<bool>
Asynchronously sets the contained value with reactive propagation.
override
singleWhere(bool test(V element), {V orElse()?}) → V
The single element that satisfies test.
inherited
skip(int count) Iterable<V>
Creates an Iterable that provides all but the first count elements.
inherited
skipWhile(bool test(V value)) Iterable<V>
Creates an Iterable that skips leading elements while test is satisfied.
inherited
take(int count) Iterable<V>
Creates a lazy iterable of the count first elements of this iterable.
inherited
takeWhile(bool test(V value)) Iterable<V>
Creates a lazy iterable of the leading elements satisfying test.
inherited
toList({bool growable = true}) List<V>
Creates a List containing the elements of this Iterable.
inherited
toSet() Set<V>
Creates a Set containing the same elements as this iterable.
inherited
toString() String
A string representation of this object.
override
where(bool test(V element)) Iterable<V>
Creates a new lazy Iterable with all elements that satisfy the predicate test.
inherited
whereType<T>() Iterable<T>
Creates a new lazy Iterable with all elements that have type T.
inherited

Operators

operator <(Object other) bool
Comparison operators for numeric values
override
operator <=(Object other) bool
Comparison operators for numeric values
override
operator ==(Object other) bool
The equality operator.
override
operator >(Object other) bool
Comparison operators for numeric values
override