PersistentStatefulCell<T> class abstract

A StatefulCell with a state that is created before the cell has observers.

This cell guarantees that a non-disposed state is returned whenever state is accessed, even if the cell does not have any observers, as long as key is null. If key is non-null an InactivePersistentStatefulCellError exception is thrown if state is accessed when the cell is inactive.

Inheritance
Implementers
Available extensions

Constructors

PersistentStatefulCell({dynamic key})

Properties

equalityCellFactory EqualityCellFactory
Return a factory for creating equality and inequality comparison cells.
no setterinherited
hashCode int
The hash code for this object.
no setterinherited
hasState bool
Does this cell have a state?
no setterinherited
key ↔ dynamic
Key which uniquely identifies the cell
latefinalinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
state CellState<StatefulCell>
The current state of the cell, or null if the cell is inactive.
no setteroverride
value → T
The cell's value
no setterinherited

Methods

addObserver(CellObserver observer) → void
Register an observer of the cell to be called when the cell's value changes.
inherited
call() → T
Retrieve the value of the cell.
inherited
createState() CellState<StatefulCell>
Create the CellState for this cell.
inherited
eq<U>(ValueCell<U> other) ValueCell<bool>
Returns a new ValueCell which compares the value of this cell to another cell for equality.
inherited
neq<U>(ValueCell<U> other) ValueCell<bool>
Returns a new ValueCell which compares the value of this cell to another cell for inequality.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
observe() → void
Track this cell as an argument of the current compute/watch function.
inherited
removeObserver(CellObserver observer) → void
Remove an observer that was previously registered with addObserver.
inherited
toString() String
A string representation of this object.
inherited

Operators

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