Class WeakSetChangeListener<E>
java.lang.Object
javafx.collections.WeakSetChangeListener<E>
- Type Parameters:
-
E- The type of the observed value
- All Implemented Interfaces:
-
WeakListener,SetChangeListener<E>
public final class WeakSetChangeListener<E>
extends Object
implements SetChangeListener<E>, WeakListener A
WeakSetChangeListener can be used, if an ObservableSet 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. WeakSetChangeListener are created by passing in the original SetChangeListener. The WeakSetChangeListener should then be registered to listen for changes of the observed object.
Note: You have to keep a reference to the SetChangeListener, 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:
-
SetChangeListener,ObservableSet,WeakListener
Nested Class Summary
Nested classes/interfaces declared in interface javafx.collections.SetChangeListener
SetChangeListener.Change<E>
Constructor Summary
| Constructor | Description |
|---|---|
WeakSetChangeListener(SetChangeListener<E> listener) | The constructor of WeakSetChangeListener. |
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.SetChangeListener
onChanged
Methods declared in interface javafx.beans.WeakListener
wasGarbageCollected
Constructor Details
WeakSetChangeListener
public WeakSetChangeListener(SetChangeListener<E> listener)
The constructor of
WeakSetChangeListener.- 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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