AValue<T extends Object> class abstract

ALiveValue

This works like Notifier but with Value This is meant to be extended by your own implementation where you want the actual Object extending this to be whose state and value is observed.

To observe an external Object as state and value use LiveValue instead.
If you want to notify about data use AValue as the controller and Value as the interface

Inheritance

Object
Notifier
AValue

Implemented types

Value<T>

Implementers

LiveValue

Available extensions

Constructors

AValue()

Properties

current → T: Available on Value<Choice<T>>, provided by the ValueChoiceExtension extension
The actual content for this item.

The current value of this choice item.
no setter
entries → Iterable<MapEntry<S, T>>: Available on Value<Map<S, T>>, provided by the MapValue extension

no setter
first → T: Available on Value<Iterable<T>>, provided by the IterableValue extension

no setter
first → T: Available on Value<Choice<T>>, provided by the ValueChoiceExtension extension
Get the first value of this choice item.
no setter
hashCode → int: The hash code for this object.
no setterinherited
isEmpty → bool: Available on Value<Iterable<T>>, provided by the IterableValue extension

no setter
isEmpty → bool: Available on Value<Map<S, T>>, provided by the MapValue extension

no setter
isFalse → bool: Available on Value<bool>, provided by the BoolValue extension

no setter
isNotEmpty → bool: Available on Value<Iterable<T>>, provided by the IterableValue extension

no setter
isNotEmpty → bool: Available on Value<Map<S, T>>, provided by the MapValue extension

no setter
isSelected → bool: Available on Value<Choice<T>>, provided by the ValueChoiceExtension extension
Indicates selected or not selected

Check this to know if the current choice is selected
no setter
isTrue → bool: Available on Value<bool>, provided by the BoolValue extension

no setter
isUnselected → bool: Available on Value<Choice<T>>, provided by the ValueChoiceExtension extension
Indicates selected or not selected

This is the opposite of isSelected
no setter
iterator → Iterator<T>: Available on Value<Iterable<T>>, provided by the IterableValue extension

no setter
keys → Iterable<S>: Available on Value<Map<S, T>>, provided by the MapValue extension

no setter
last → T: Available on Value<Iterable<T>>, provided by the IterableValue extension

no setter
last → T: Available on Value<Choice<T>>, provided by the ValueChoiceExtension extension
Get the last value of this choice item.
no setter
length → int: Available on Value<Iterable<T>>, provided by the IterableValue extension

no setter
length → int: Available on Value<Map<S, T>>, provided by the MapValue extension

no setter
length → int: Available on Value<Choice<T>>, provided by the ValueChoiceExtension extension

no setter
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
single → T: Available on Value<Iterable<T>>, provided by the IterableValue extension

no setter
value → T: Get the current value
no setteroverride
values → Iterable<T>: Available on Value<Map<S, T>>, provided by the MapValue extension

no setter

Methods

any(bool test(T element)) → bool: Available on Value<Iterable<T>>, provided by the IterableValue extension
call(T newValue) → void: convenient method for updating the LiveValue
cast<RK, RV>() → Map<RK, RV>: Available on Value<Map<S, T>>, provided by the MapValue extension
cast<R>() → Iterable<R>: Available on Value<Iterable<T>>, provided by the IterableValue extension
contains(T element) → bool: Available on Value<Iterable<T>>, provided by the IterableValue extension
containsKey(S key) → bool: Available on Value<Map<S, T>>, provided by the MapValue extension
containsValue(S value) → bool: Available on Value<Map<S, T>>, provided by the MapValue extension
dispose() → void: Wipes object data from memory
override
elementAt(int index) → T: Available on Value<Iterable<T>>, provided by the IterableValue extension
every(bool test(T element)) → bool: Available on Value<Iterable<T>>, provided by the IterableValue extension
expand<Y>(Iterable<Y> toElements(T element)) → Iterable<Y>: Available on Value<Iterable<T>>, provided by the IterableValue extension
firstWhere(bool test(T element), {T orElse()?}) → T: Available on Value<Iterable<T>>, provided by the IterableValue extension
fold<Y>(Y initialValue, Y combine(Y previousValue, T element)) → Y: Available on Value<Iterable<T>>, provided by the IterableValue extension
followedBy(Iterable<T> other) → Iterable<T>: Available on Value<Iterable<T>>, provided by the IterableValue extension
forEach(void action(S key, T value)) → void: Available on Value<Map<S, T>>, provided by the MapValue extension
forEach(void action(T element)) → void: Available on Value<Iterable<T>>, provided by the IterableValue extension
get(Map<String, dynamic> properties) → T: Available on Value<Choice<T>>, provided by the ValueChoiceExtension extension
Get the current value of this choice item.
join([String separator = ""]) → String: Available on Value<Iterable<T>>, provided by the IterableValue extension
lastWhere(bool test(T element), {T orElse()?}) → T: Available on Value<Iterable<T>>, provided by the IterableValue extension
listen(VoidCallback listener, {bool runOnAttach = false}) → void: Adds a listener that will react to notification of change
inherited
map<K2, V2>(MapEntry<K2, V2> convert(S key, T value)) → Map<K2, V2>: Available on Value<Map<S, T>>, provided by the MapValue extension
map<S>(S toElement(T e)) → Iterable<S>: Available on Value<Iterable<T>>, provided by the IterableValue extension
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
notify() → void: Notify all listeners
inherited
observe(ValueObserverCallback<T> observer) → void: Adds the observer to a list of callbacks to be notified when change takes place.
override
onValue(ValueConsumerCallback<T> valueConsumerCallback, {bool runOnInitialValue = true}) → void: Listen to Values
override
reduce(T combine(T value, T element)) → T: Available on Value<Iterable<T>>, provided by the IterableValue extension
remove(VoidCallback reactor) → void: removes the give reactor listener
inherited
removeObserver(ValueObserverCallback<T> observer) → void: Removes the observer from a list of callbacks to be notified when change takes place.
override
removeValueConsumerCallback(ValueConsumerCallback<T> consumer) → void: Removes the ValueConsumerCallback from the list of callBacks.
override
singleWhere(bool test(T element), {T orElse()?}) → T: Available on Value<Iterable<T>>, provided by the IterableValue extension
skip(int count) → Iterable<T>: Available on Value<Iterable<T>>, provided by the IterableValue extension
skipWhile(bool test(T value)) → Iterable<T>: Available on Value<Iterable<T>>, provided by the IterableValue extension
take(int count) → Iterable<T>: Available on Value<Iterable<T>>, provided by the IterableValue extension
takeWhile(bool test(T value)) → Iterable<T>: Available on Value<Iterable<T>>, provided by the IterableValue extension
toList({required bool growable}) → List<T>: Available on Value<Iterable<T>>, provided by the IterableValue extension
toSet() → Set<T>: Available on Value<Iterable<T>>, provided by the IterableValue extension
toString() → String: A string representation of this object.
override
update(T newValue) → void
verify<T>({required T yes, required T no}) → T: Available on Value<bool>, provided by the BoolValue extension
where(bool test(T element)) → Iterable<T>: Available on Value<Iterable<T>>, provided by the IterableValue extension
whereType<V>() → Iterable<V>: Available on Value<Iterable<T>>, provided by the IterableValue extension

Operators

operator ==(Object other) → bool: The equality operator.
inherited
operator [](S key) → T?: Available on Value<Map<S, T>>, provided by the MapValue extension
operator [](int key) → T: Available on Value<Choice<T>>, provided by the ValueChoiceExtension extension