AbstractProperty.WeakPreferenceAdapter (JOSM)

java.lang.Object
- java.lang.ref.Reference<T>
- - java.lang.ref.WeakReference<T>
  - - org.openstreetmap.josm.tools.ListenableWeakReference<AbstractProperty.ValueChangeListener<? super T>>
    - - org.openstreetmap.josm.data.preferences.AbstractProperty.WeakPreferenceAdapter

All Implemented Interfaces:

AbstractProperty.ValueChangeListener<T>

Enclosing class:

AbstractProperty<T>
```
private class AbstractProperty.WeakPreferenceAdapter
extends ListenableWeakReference<AbstractProperty.ValueChangeListener<? super T>>
implements AbstractProperty.ValueChangeListener<T>
```
This class wraps the ValueChangeListener in a ListenableWeakReference that automatically removes itself if the listener is garbage collected.

Constructor Summary

Constructors
Constructor Description

WeakPreferenceAdapter(AbstractProperty.ValueChangeListener<? super T> referent)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`onDereference()`	This method is called after the object is dereferenced.
`void`	`valueChanged(AbstractProperty.ValueChangeEvent<? extends T> e)`	Method called when a property value has changed.

Methods inherited from class java.lang.ref.Reference
clear, clone, enqueue, get, isEnqueued, reachabilityFence

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - WeakPreferenceAdapter
```
WeakPreferenceAdapter(AbstractProperty.ValueChangeListener<? super T> referent)
```
- Method Detail
  - valueChanged
```
public void valueChanged(AbstractProperty.ValueChangeEvent<? extends T> e)
```
    Description copied from interface: AbstractProperty.ValueChangeListener
    
    Method called when a property value has changed.
    
    Specified by:
    
    valueChanged in interface AbstractProperty.ValueChangeListener<T>
    
    Parameters:
    
    e - property change event
  - onDereference
```
protected void onDereference()
```
    Description copied from class: ListenableWeakReference
    
    This method is called after the object is dereferenced.
    
    Overrides:
    
    onDereference in class ListenableWeakReference<AbstractProperty.ValueChangeListener<? super T>>