SetChangeListener (JavaFX 12)

Type Parameters:

E - the element type

All Known Implementing Classes:

WeakSetChangeListener

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface SetChangeListener<E>
```
Interface that receives notifications of changes to an ObservableSet.

Since:

JavaFX 2.1

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static class SetChangeListener.Change<E>
An elementary change done to an ObservableSet.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`onChanged(SetChangeListener.Change<? extends E> change)`	Called after a change has been made to an ObservableSet.

- Method Detail
  - onChanged
```
void onChanged(SetChangeListener.Change<? extends E> change)
```
    Called after a change has been made to an ObservableSet. This method is called on every elementary change (add/remove) once. This means, complex changes like removeAll(Collection) or clear() may result in more than one call of onChanged method.
    
    Parameters:
    
    change - the change that was made