Observable 0.5 API


public abstract class Observable

Basic observable.

Constructor Summary

Constructors
Constructor	Description
`Observable()`	Empty constructor.

Method Summary

Modifier and Type	Method	Description
`final Unit`	`addListenerAndInvoke(Observer listener)`	Adds a listener and calls Observer.update on this new listener.
`final Unit`	`addListener(Observer listener)`	Adds a listener silently.
`final Boolean`	`removeListener(Observer listener)`	Removes a listener.
`final Unit`	`clearListeners()`	Removes all listeners.
`final Unit`	`notifyChange()`	Notifies all listeners by calling Observer.update.

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

- Constructor Detail
  - Observable
```
Observable()
```
    Empty constructor.
- Method Detail
  - addListenerAndInvoke
```
 final Unit addListenerAndInvoke(Observer listener)
```
    Adds a listener and calls Observer.update on this new listener.
    
    Parameters:
    
    listener - Listener to add and notify.
  - addListener
```
 final Unit addListener(Observer listener)
```
    Adds a listener silently.
    
    Parameters:
    
    listener - Listener to add
  - removeListener
```
 final Boolean removeListener(Observer listener)
```
    Removes a listener.
    
    Parameters:
    
    listener - Listener to remove.
  - clearListeners
```
 final Unit clearListeners()
```
    Removes all listeners.
  - notifyChange
```
 final Unit notifyChange()
```
    Notifies all listeners by calling Observer.update.