ObservableMap (JavaFX 13)

All Superinterfaces:

Map<K,V>, Observable

All Known Subinterfaces:

ObservableMapValue<K,V>, WritableMapValue<K,V>

All Known Implementing Classes:

MapBinding, MapExpression, MapProperty, MapPropertyBase, ReadOnlyMapProperty, ReadOnlyMapPropertyBase, ReadOnlyMapWrapper, SimpleMapProperty
```
public interface ObservableMap<K,V>
extends Map<K,V>, Observable
```
A map that allows observers to track changes when they occur.

Since:

JavaFX 2.0

See Also:

MapChangeListener, MapChangeListener.Change

Nested Class Summary
- Nested classes/interfaces inherited from interface java.util.Map
  Map.Entry<K extends Object,V extends Object>

Method Summary

Modifier and Type	Method	Description
`void`	`addListener(MapChangeListener<? super K,? super V> listener)`	Add a listener to this observable map.
`void`	`removeListener(MapChangeListener<? super K,? super V> listener)`	Tries to removed a listener from this observable map.

Methods inherited from interface java.util.Map
clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, get, getOrDefault, hashCode, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Methods inherited from interface javafx.beans.Observable
addListener, removeListener

- Method Detail
  - addListener
```
void addListener(MapChangeListener<? super K,? super V> listener)
```
    Add a listener to this observable map.
    
    Parameters:
    
    listener - the listener for listening to the list changes
  - removeListener
```
void removeListener(MapChangeListener<? super K,? super V> listener)
```
    Tries to removed a listener from this observable map. If the listener is not attached to this map, nothing happens.
    
    Parameters:
    
    listener - a listener to remove