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# AbstractDerivation class
Signature:
export default abstract class AbstractDerivation<V> implements IDerivation<V>
Implements: IDerivation<V>
# Constructors
| Constructor | Modifiers | Description |
|---|---|---|
| (constructor)() | Constructs a new instance of the AbstractDerivation class |
# Properties
| Property | Modifiers | Type | Description |
|---|---|---|---|
| _dependencies | Set<IDerivation<$IntentionalAny>> | ||
| _dependents | Set<IDependent> | ||
| _lastValue | undefined | V | ||
| isDerivation | true | ||
| isHot | boolean |
# Methods
| Method | Modifiers | Description |
|---|---|---|
| _addDependency(d) | ||
| _becomeCold() | ||
| _keepHot() | ||
| _markAsStale(which) | This is meant to be called by subclasses | |
| _reactToDependencyBecomingStale(which) | ||
| _recalculate() | ||
| _removeDependency(d) | ||
| addDependent(d) | ||
| changes(ticker) | ||
| changesWithoutValues() | ||
| flatMap(fn) | ||
| getValue() | ||
| keepHot() | ||
| map(fn) | ||
| removeDependent(d) | ||
| tapImmediate(ticker, fn) |