- java.lang.Object
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- javafx.collections.WeakMapChangeListener<K,V>
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- Type Parameters:
K
- the key element typeV
- the value element type
- All Implemented Interfaces:
WeakListener
,MapChangeListener<K,V>
public final class WeakMapChangeListener<K,V> extends Object implements MapChangeListener<K,V>, WeakListener
AWeakMapChangeListener
can be used, if anObservableMap
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 originalMapChangeListener
. TheWeakMapChangeListener
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
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Nested Class Summary
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Nested classes/interfaces declared in interface javafx.collections.MapChangeListener
MapChangeListener.Change<K,V>
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Constructor Summary
Constructors Constructor Description WeakMapChangeListener(MapChangeListener<K,V> listener)
The constructor ofWeakMapChangeListener
.
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Method Summary
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Methods declared in interface javafx.collections.MapChangeListener
onChanged
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Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods declared in interface javafx.beans.WeakListener
wasGarbageCollected
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Constructor Detail
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WeakMapChangeListener
public WeakMapChangeListener(MapChangeListener<K,V> listener)
The constructor ofWeakMapChangeListener
.- Parameters:
listener
- The original listener that should be notified
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