com.neurosys.events

Class AbstractChainChangeListener<T>

java.lang.Object

com.neurosys.events.AbstractChainChangeListener<T>

All Implemented Interfaces:

ChangeGenerator<T>, ChangeListener<T>, Serializable, EventListener, org.apache.commons.collections.Transformer

Direct Known Subclasses:

AsynchronousChangeListener, SynchronousChangeListener

public abstract class AbstractChainChangeListener<T>
extends Object
implements ChangeListener<T>, ChangeGenerator<T>, org.apache.commons.collections.Transformer

Execute a Chain of ChangeListeners

Author:

Arjun Dhar

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected List<ChangeListener<T>>	listeners

Constructor Summary

Constructors

Constructor and Description
AbstractChainChangeListener()
AbstractChainChangeListener(List<ChangeListener<T>> listeners)

Method Summary

Modifier and Type	Method and Description
void	addChangeListener(ChangeListener<T> changeListener) Allow Notify all ChangeListeners about a change
List	getListeners() Get list directly.
void	notifyAllListeners(T object) Whenever a node is selected/updated, it also notifies its listeners.
abstract void	onChange(ChangeGenerator<T> changeGenerator, T modelObject)
void	setListeners(List listeners) Set list directly.
Object	transform(Object input)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

listeners

protected transient List<ChangeListener<T>> listeners

Constructor Detail

AbstractChainChangeListener

public AbstractChainChangeListener()

AbstractChainChangeListener

public AbstractChainChangeListener(List<ChangeListener<T>> listeners)

Method Detail

addChangeListener

public void addChangeListener(ChangeListener<T> changeListener)

Description copied from interface: ChangeGenerator

Allow Notify all ChangeListeners about a change

Specified by:

addChangeListener in interface ChangeGenerator<T>

notifyAllListeners

public void notifyAllListeners(T object)

Description copied from interface: ChangeGenerator

Whenever a node is selected/updated, it also notifies its listeners.

Specified by:

notifyAllListeners in interface ChangeGenerator<T>

getListeners

public List getListeners()

Description copied from interface: ChangeGenerator

Get list directly. Support DI; like Spring IOC

Specified by:

getListeners in interface ChangeGenerator<T>

setListeners

public void setListeners(List listeners)

Description copied from interface: ChangeGenerator

Set list directly. Support DI; like Spring IOC

Specified by:

setListeners in interface ChangeGenerator<T>

onChange

public abstract void onChange(ChangeGenerator<T> changeGenerator,
                              T modelObject)

Specified by:

onChange in interface ChangeListener<T>

Parameters:

changeGenerator - as the generator that caused the change. Specially useful if the Listener is subscribing to multiple ChangeGenerators

modelObject - as the model change communicated

transform

public Object transform(Object input)

Specified by:

transform in interface org.apache.commons.collections.Transformer