ComputedObservable<T> class

A derived observable value that automatically updates when its dependencies change.

The (ComputedObservable) listens to a list of (Observable) and recomputes its value whenever any of them changes. It is read-only and cannot be directly mutated.

Inheritance

Constructors

ComputedObservable.new(ComputeFunction<T> _compute, List<Observable> _dependencies)
Creates a new ComputedObservable with the provided compute function and dependencies.

Properties

hashCode int
The hash code for this object.
no setterinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
value ↔ T
Gets the current value and tracks the observer if present.
getter/setter pairinherited

Methods

addListener(VoidCallback listener) → void
Adds a specific listener to this observable.
inherited
dispose() → void
Disposes the computed observable by removing all dependency listeners.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
read() → T
Returns the current value without tracking dependency.
inherited
removeListener(VoidCallback listener) → void
Removes a specific listener from this observable.
inherited
toString() String
A string representation of this object.
inherited
watch() → T
Returns the current value and tracks the dependency for reactivity.
inherited

Operators

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