Interface Observable<T, TChange>

TChange

addObserver

• addObserver(observer): void

• This method is called by the framework and should not typically be called by ordinary clients.

  Adds the observer to the set of subscribed observers. This method is idempotent.

  Parameters

  • observer: Observer

  Returns void

get

• get(accessor?): T
• • If an accessor is given, has the same effect as calling accessor(this).
  • If no accessor is given, uses the current accessor if it is set.
  • If no accessor is given and there is no current accessor, has the same effect as calling getUntracked.

  Parameters

  • Optional accessor: Accessor

  Returns T

getUntracked

• getUntracked(): T

• This method is called by the framework and should not typically be called by ordinary clients.

  Returns the current value of this observable without tracking the access.

  Calls Observable.Observer.handleChange if the observable notices that its value has changed.

  Returns T

removeObserver

• removeObserver(observer): void

• This method is called by the framework and should not typically be called by ordinary clients.

  Removes the observer from the set of subscribed observers. This method is idempotent.

  Parameters

  • observer: Observer

  Returns void

update

• update(): void

• This method is called by the framework and should not typically be called by ordinary clients.

  Forces the observable to detect and report a change if any.

  Has the same effect as calling getUntracked, but does not force the observable to actually construct the value, e.g. if change deltas are used.

  Calls Observable.Observer.handleChange if the observable notices that its value has changed.

  Returns void