Class WeakInvalidationListener
java.lang.Object
javafx.beans.WeakInvalidationListener
- All Implemented Interfaces:
-
InvalidationListener,WeakListener
public final class WeakInvalidationListener
extends Object
implements InvalidationListener, WeakListener A
WeakInvalidationListener can be used if an Observable 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. A WeakInvalidationListener is created by passing in the original InvalidationListener. The WeakInvalidationListener should then be registered to listen for changes of the observed object.
Note: You have to keep a reference to the InvalidationListener that was passed in as long as it is in use, otherwise it can be garbage collected too soon.
- Since:
- JavaFX 2.0
- See Also:
-
InvalidationListener,Observable
Constructor Summary
| Constructor | Description |
|---|---|
WeakInvalidationListener(InvalidationListener listener) | The constructor of WeakInvalidationListener. |
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.beans.InvalidationListener
invalidated
Methods declared in interface javafx.beans.WeakListener
wasGarbageCollected
Constructor Details
WeakInvalidationListener
public WeakInvalidationListener(InvalidationListener listener)
The constructor of
WeakInvalidationListener.- Parameters:
-
listener- The original listener that should be notified
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Documentation extracted from JavaFX API Documentation.
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