StaleEvent (Eclipse Platform API Specification)

java.lang.Object
- java.util.EventObject
- - org.eclipse.core.databinding.observable.ObservableEvent
  - - org.eclipse.core.databinding.observable.StaleEvent

All Implemented Interfaces:

Serializable
```
public class StaleEvent
extends ObservableEvent
```
Generic event denoting that the state of an IObservable object is about to change. Note that this event is only fired when an observable becomes stale, not when it becomes unstale; an observable that becomes unstale should always fire a change event. Staleness can be used (for example) to notify listeners when an observable has started a background thread for updating its state. Clients can safely ignore staleness.

Since:

1.0

See Also:

IObservable.isStale(), Serialized Form

Field Summary
- Fields inherited from class java.util.EventObject
  source

Constructor Summary

Constructors
Constructor Description

StaleEvent(IObservable source)
Creates a new stale event.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`dispatch(IObservablesListener listener)`	Dispatch this event to the given listener.
`protected Object`	`getListenerType()`	Returns a unique object used for distinguishing this event type from others.

Methods inherited from class org.eclipse.core.databinding.observable.ObservableEvent
getObservable

Methods inherited from class java.util.EventObject
getSource, toString

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

- Constructor Detail
  - StaleEvent
```
public StaleEvent(IObservable source)
```
    Creates a new stale event.
    
    Parameters:
    
    source - the source observable
- Method Detail
  - dispatch
```
protected void dispatch(IObservablesListener listener)
```
    Description copied from class: ObservableEvent
    
    Dispatch this event to the given listener. Subclasses must implement this method by calling the appropriate type-safe event handling method on the given listener according to the type of this event.
    
    Specified by:
    
    dispatch in class ObservableEvent
    
    Parameters:
    
    listener - the listener that should handle the event
  - getListenerType
```
protected Object getListenerType()
```
    Description copied from class: ObservableEvent
    
    Returns a unique object used for distinguishing this event type from others.
    
    Specified by:
    
    getListenerType in class ObservableEvent
    
    Returns:
    
    a unique object representing the concrete type of this event.