Class WeakMapChangeListener<K,V>
java.lang.Object
javafx.collections.WeakMapChangeListener<K,V>
- Type Parameters:
-
K- the key element type -
V- the value element type
- All Implemented Interfaces:
-
WeakListener,MapChangeListener<K,V>
public final class WeakMapChangeListener<K,V>
extends Object
implements MapChangeListener<K,V>, WeakListener A
WeakMapChangeListener can be used, if an ObservableMap should only maintain a weak reference to the listener. This helps to avoid memory leaks, that can occur if observers are not unregistered from observed objects after use. WeakMapChangeListener are created by passing in the original MapChangeListener. The WeakMapChangeListener should then be registered to listen for changes of the observed object.
Note: You have to keep a reference to the MapChangeListener, that was passed in as long as it is in use, otherwise it will be garbage collected to soon.
- Since:
- JavaFX 2.1
- See Also:
-
MapChangeListener,ObservableMap,WeakListener
Nested Class Summary
Nested classes/interfaces declared in interface javafx.collections.MapChangeListener
MapChangeListener.Change<K,V>
Constructor Summary
| Constructor | Description |
|---|---|
WeakMapChangeListener(MapChangeListener<K,V> listener) | The constructor of WeakMapChangeListener. |
Method Summary
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods declared in interface javafx.collections.MapChangeListener
onChanged
Methods declared in interface javafx.beans.WeakListener
wasGarbageCollected
Constructor Details
WeakMapChangeListener
public WeakMapChangeListener(MapChangeListener<K,V> listener)
The constructor of
WeakMapChangeListener.- Parameters:
-
listener- The original listener that should be notified
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Documentation extracted from JavaFX API Documentation.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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