Package snap.props

Class PropChangeSupport

java.lang.Object

snap.props.PropChangeSupport

public class PropChangeSupport
extends Object

A class to easily add propery change support to a class (and DeepChange support).

Field Summary

Fields

Modifier and Type	Field	Description
static final PropChangeSupport	EMPTY

Constructor Summary

Constructors

Constructor	Description
PropChangeSupport(Object aSrc)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	addDeepChangeListener(DeepChangeListener aLsnr)	Adds a DeepChangeListener.
void	addPropChangeListener(PropChangeListener aLsnr)	Adds a PropChangeListener.
void	addPropChangeListener(PropChangeListener aLsnr, String aProp)	Adds a PropChangeListener for given prop.
void	fireDeepChange(Object aSrc, PropChange aPC)	Sends the deep change.
void	firePropChange(String aProp, Object oldVal, Object newVal)	Fires a property change.
void	firePropChange(String aProp, Object oldVal, Object newVal, int anIndex)	Fires an indexed property change.
void	firePropChange(PropChange aPC)	Sends the property change.
boolean	hasDeepListener()	Returns whether there is a deep listener.
boolean	hasListener(String aProp)	Returns whether there is a listener for given prop.
void	removeDeepChangeListener(DeepChangeListener aLsnr)	Removes a DeepChangeListener.
void	removePropChangeListener(PropChangeListener aLsnr)	Removes a PropChangeListener.
void	removePropChangeListener(PropChangeListener aLsnr, String aProp)	Removes a PropChangeListener.

Methods inherited from class java.lang.Object

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

Field Details

EMPTY

public static final PropChangeSupport EMPTY

Constructor Details

PropChangeSupport

public PropChangeSupport(Object aSrc)

Constructor.

Method Details

addPropChangeListener

public void addPropChangeListener(PropChangeListener aLsnr)

Adds a PropChangeListener.

removePropChangeListener

public void removePropChangeListener(PropChangeListener aLsnr)

Removes a PropChangeListener.

addPropChangeListener

public void addPropChangeListener(PropChangeListener aLsnr,
 String aProp)

Adds a PropChangeListener for given prop.

removePropChangeListener

public void removePropChangeListener(PropChangeListener aLsnr,
 String aProp)

Removes a PropChangeListener.

hasListener

public boolean hasListener(String aProp)

Returns whether there is a listener for given prop.

firePropChange

public void firePropChange(String aProp,
 Object oldVal,
 Object newVal)

Fires a property change.

firePropChange

public void firePropChange(String aProp,
 Object oldVal,
 Object newVal,
 int anIndex)

Fires an indexed property change.

firePropChange

public void firePropChange(PropChange aPC)

Sends the property change.

hasDeepListener

public boolean hasDeepListener()

Returns whether there is a deep listener.

addDeepChangeListener

public void addDeepChangeListener(DeepChangeListener aLsnr)

Adds a DeepChangeListener.

removeDeepChangeListener

public void removeDeepChangeListener(DeepChangeListener aLsnr)

Removes a DeepChangeListener.

fireDeepChange

public void fireDeepChange(Object aSrc,
 PropChange aPC)

Sends the deep change.