JavaFX 24 · javafx.beans.InvalidationListener · APIdia, the JavaDoc alternative

An InvalidationListener is notified whenever an Observable becomes invalid. It can be registered and unregistered with Observable#addListener(InvalidationListener) respectively Observable#removeListener(InvalidationListener).

For an in-depth explanation of invalidation events and how they differ from change events, see the documentation of ObservableValue.

The same instance of InvalidationListener can be registered to listen to multiple Observables.

Method Summary

Modifier and Type	Method and Description
public void	invalidated(Observable The `Observable` that became invalid observable) This method needs to be provided by an implementation of `InvalidationListener`.

invalidated back to summary

invalidated	back to summary
public void invalidated(Observable observable) This method needs to be provided by an implementation of `InvalidationListener`. It is called if an `Observable` becomes invalid. In general, it is considered bad practice to modify the observed value in this method. Parameters observable:Observable The `Observable` that became invalid

public void invalidated(Observable observable)

This method needs to be provided by an implementation of InvalidationListener. It is called if an Observable becomes invalid.

In general, it is considered bad practice to modify the observed value in this method.

Parameters