Dependency<T extends Object> class

An immutable object describing a dependency. It can be registered in Deps by using Deps.add.

Annotations

Constructors

Dependency({required FutureOr<T> create(Deps deps), T update(Deps deps, T oldValue)?, Stream<Object?> when(Deps deps)?, FutureOr<void> dispose(T value)?, String? debugLabel})
An immutable object describing a dependency. It can be registered in Deps by using Deps.add.
const
Dependency.value(T value)
An immutable object describing a dependency. It can be registered in Deps by using Deps.add.
factory

Properties

create → FutureOr<T> Function(Deps deps)
Creates a new instance of T. You can use provided Deps to obtain required dependencies. This callback can be asynchronous to perform long running initialization or await another dependency.
final
debugLabel → String?
A debug label to help identify the dependency in logs.
final
dispose → (FutureOr<void> Function(T value)?)
Perform actions to clean up after the object is no longer needed.
final
hashCode → int
The hash code for this object.
no setterinherited
key → DependencyKey
The key or type of the dependency. It is a unique identifier for the dependency in its Deps.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
update → (T Function(Deps deps, T oldValue)?)
Updates or creates a new instance of the dependency in reaction to changes in other dependencies specified by when.
final
when → (Stream<Object?> Function(Deps deps)?)
Use one of Deps.watch, DepsWatchMany.watch2 etc. to specify which changes you want to observe.
final

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited