MutableComputeCell<T> class

A cell with a value computed by a user provided function which can also be set explicitly.

Inheritance

• Object
• ValueCell<T>
• StatefulCell<T>
• PersistentStatefulCell<T>
• MutableDependentCell<T>
• MutableComputeCell

Implemented types

• MutableCell<T>

Available extensions

• ActionCellEffectExtension
• ActionCellExtension
• BoolCellExtension
• BoolValueChangeExtension
• CellHolderExtension
• CellMaybeExtension
• ComputeArgumentsTracker
• ComputeExtension
• ConvertStringExtension
• DelayCellExtension
• DurationCellExtension
• EffectCellExtension
• ErrorCellExtension
• IterableCellExtension
• ListCellExtension
• MapCellExtension
• MaybeCellExtension
• MutableDurationCellExtension
• MutableListCellExtension
• MutableMapCellExtension
• MutableNullCheckExtension
• MutableTransformExtension
• NullCheckExtension
• NumericExtension
• ParseDoubleExtension
• ParseIntExtension
• ParseMaybeDoubleExtension
• ParseMaybeIntExtension
• ParseMaybeNumExtension
• ParseNumExtension
• PeekCellExtension
• PrevValueCellExtension
• SetCellExtension
• StoreCellExtension
• TransformExtension
• ValueChangeExtension
• WaitCellExtension

Constructors

MutableComputeCell({required T compute(), required void reverseCompute(T), required Set<ValueCell> arguments, bool changesOnly = false, dynamic key})

Create a MutableComputeCell with a given compute and reverse compute function.

Properties

arguments → Set<ValueCell>

List of argument cells.

final, inherited

changesOnly → bool

Should the cell notify its observers only when its value has changed?

final, inherited

equalityCellFactory → EqualityCellFactory

Return a factory for creating equality and inequality comparison cells.

no setter, inherited

hashCode → int

The hash code for this object.

no setter, inherited

key ↔ dynamic

Key which uniquely identifies the cell

late, final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

state → MutableComputedCellState<T, MutableDependentCell<T>>

The current state of the cell, or null if the cell is inactive.

no setter, inherited

value ↔ T

The cell's value

getter/setter pair, inherited

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

compute() → T

Compute the value of the cell.

override

createMutableState({covariant MutableComputedCellState<T, MutableDependentCell<T>>? oldState}) → MutableComputedCellState<T, MutableDependentCell<T>>

Create the state for the MutableCell.

inherited

createState() → MutableCellState<T, MutableCellBase<T>>

Create the CellState for this cell.

inherited

dumpState(CellValueCoder coder) → Object?

Dump the state of the cell to a value.

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

restoreState(Object? state, CellValueCoder coder) → void

Restore the state of the cell.

inherited

reverseCompute(T value) → void

Set the value of the argument cells in response to the value of the cell being set.

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited