StoreCell<T> class

Value cell which stores the computed value of another ValueCell in memory.

This class can be used to avoid expensive recomputations of cell values when the values of the argument cells have not changed.

Inheritance

• Object
• ValueCell<T>
• StatefulCell<T>
• StoreCell

Implemented types

• RestorableCell<T>

Implementers

• EffectCell

Available extensions

• ActionCellEffectExtension
• ActionCellExtension
• BoolCellExtension
• BoolValueChangeExtension
• CellHolderExtension
• ComputeArgumentsTracker
• ComputeExtension
• DelayCellExtension
• DurationCellExtension
• EffectCellExtension
• ErrorCellExtension
• IterableCellExtension
• ListCellExtension
• MapCellExtension
• MaybeCellExtension
• NullCheckExtension
• NumericExtension
• PeekCellExtension
• PrevValueCellExtension
• SetCellExtension
• StoreCellExtension
• TransformExtension
• ValueChangeExtension
• WaitCellExtension

Constructors

StoreCell(ValueCell<T> argCell, {bool changesOnly = false, dynamic key})

Create a StoreCell which observes and saves the value of argCell

Properties

argCell → ValueCell<T>

The observed cell

final

changesOnly → bool

Should the observers only be notified if this cell's value has changed?

final

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

hasState → bool

Does this cell have a state?

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 → StoreCellState<T>?

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

no setter, override

value → T

The cell's value

no setter, override

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.

override

dumpState(CellValueCoder coder) → Object?

Dump the state of the cell to a value.

override

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.

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited