ChangeEventSupport (JunGrapht Visualization 1.1 API)

All Known Subinterfaces:

MultiLayerTransformer, MutableTransformer

All Known Implementing Classes:

DefaultChangeEventSupport, DefaultTransformer, HyperbolicShapeTransformer, HyperbolicTransformer, LensTransformer, LensTransformSupport, MagnifyShapeTransformer, MagnifyTransformer, MutableAffineTransformer, MutableTransformerDecorator, TransformSupport
```
public interface ChangeEventSupport
```
the implementing class provides support for ChangeEvents.

Author:

Tom Nelson - tomnelson@dev.java.net

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`addChangeListener(ChangeListener l)`
`void`	`fireStateChanged()`
`ChangeListener[]`	`getChangeListeners()`	Returns an array of all the `ChangeListener`s added with addChangeListener().
`void`	`removeChangeListener(ChangeListener l)`	Removes a ChangeListener.

- Method Detail
  - addChangeListener
```
void addChangeListener(ChangeListener l)
```
  - removeChangeListener
```
void removeChangeListener(ChangeListener l)
```
    Removes a ChangeListener.
    
    Parameters:
    
    l - the listener to be removed
  - getChangeListeners
```
ChangeListener[] getChangeListeners()
```
    Returns an array of all the ChangeListeners added with addChangeListener().
    
    Returns:
    
    all of the ChangeListeners added or an empty array if no listeners have been added
  - fireStateChanged
```
void fireStateChanged()
```