Module javafx.base

Package javafx.collections

Interface ObservableMap<K,V>

Type Parameters:

K - the map key element type

V - the map value element type

All Superinterfaces:

Map<K,V>, Observable

All Known Subinterfaces:

ObservableMapValue<K,V>, Platform.Preferences, 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. Implementations can be created using methods in FXCollections such as observableHashMap, or with a SimpleMapProperty.

Since:

JavaFX 2.0

See Also:

• MapChangeListener
• MapChangeListener.Change

Nested Class Summary

Nested classes/interfaces declared in interface java.util.Map

Map.Entry<K,V>

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 declared in 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 declared in interface javafx.beans.Observable

addListener, removeListener, subscribe

Method Details

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