javafx.collections

Interface MapChangeListener<K,V>

Type Parameters:

K - the key element type

All Known Implementing Classes:

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 MapChangeListener<K,V>

Interface that receives notifications of changes to an ObservableMap.

Since:

JavaFX 2.0

Nested Class Summary

Nested Classes
Modifier and Type Interface and Description

static class MapChangeListener.Change<K,V>
An elementary change done to an ObservableMap.

Nested Classes
Modifier and Type	Interface and Description
`static class`	`MapChangeListener.Change<K,V>` An elementary change done to an ObservableMap.

Method Summary

All MethodsInstance MethodsAbstract Methods
Modifier and Type	Method and Description
`void`	`onChanged(MapChangeListener.Change<? extends K,? extends V> change)` Called after a change has been made to an ObservableMap.

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

© 2008, 2025, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from JavaFX API Documentation.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Java, JavaFX and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.

Interface MapChangeListener<K,V>

Nested Class Summary

Method Summary

Method Detail

onChanged