org.codehaus.griffon.runtime.core

Class AbstractObservable

java.lang.Object

org.codehaus.griffon.runtime.core.AbstractObservable

All Implemented Interfaces:

Observable

Direct Known Subclasses:

AbstractAction, AbstractGriffonApplication, AbstractVetoable, LanternaAction

public abstract class AbstractObservable
extends Object
implements Observable

Since:

2.0.0

Author:

Andres Almiray

Field Summary

Fields

Modifier and Type	Field and Description
protected PropertyChangeSupport	pcs

Constructor Summary

Constructors

Constructor and Description
AbstractObservable()

Method Summary

Modifier and Type	Method and Description
void	addPropertyChangeListener(PropertyChangeListener listener) Adds the given PropertyChangeListener to the listener list.
void	addPropertyChangeListener(String propertyName, PropertyChangeListener listener) Removes the given PropertyChangeListener from the listener list.
protected void	firePropertyChange(PropertyChangeEvent event)
protected void	firePropertyChange(String propertyName, Object oldValue, Object newValue)
PropertyChangeListener[]	getPropertyChangeListeners() Returns an array of all the listeners that were added with addPropertyChangeListener().
PropertyChangeListener[]	getPropertyChangeListeners(String propertyName) Returns an array of all the listeners which have been associated with the named property.
void	removePropertyChangeListener(PropertyChangeListener listener) Removes the given PropertyChangeListener from the listener list.
void	removePropertyChangeListener(String propertyName, PropertyChangeListener listener) Removes the given PropertyChangeListener from the listener list.

Methods inherited from class java.lang.Object

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

Field Detail

pcs

protected final PropertyChangeSupport pcs

Constructor Detail

AbstractObservable

public AbstractObservable()

Method Detail

addPropertyChangeListener

public void addPropertyChangeListener(@Nullable
                                      PropertyChangeListener listener)

Description copied from interface: Observable

Adds the given PropertyChangeListener to the listener list.

The listener is registered for all bound properties of this class.

Specified by:

addPropertyChangeListener in interface Observable

Parameters:

listener - the PropertyChangeListener to be added

See Also:

Observable.removePropertyChangeListener(PropertyChangeListener)

addPropertyChangeListener

public void addPropertyChangeListener(@Nullable
                                      String propertyName,
                                      @Nullable
                                      PropertyChangeListener listener)

Description copied from interface: Observable

Removes the given PropertyChangeListener from the listener list.

The listener is registered an specific property of this class.

Specified by:

addPropertyChangeListener in interface Observable

Parameters:

propertyName - The name of the property to listen on.

listener - the PropertyChangeListener to be added

See Also:

Observable.removePropertyChangeListener(String, PropertyChangeListener)

removePropertyChangeListener

public void removePropertyChangeListener(@Nullable
                                         PropertyChangeListener listener)

Description copied from interface: Observable

Removes the given PropertyChangeListener from the listener list.

This method should be used to remove PropertyChangeListeners that were registered for all bound properties of this class.

Specified by:

removePropertyChangeListener in interface Observable

Parameters:

listener - the PropertyChangeListener to be removed

See Also:

Observable.addPropertyChangeListener(PropertyChangeListener)

removePropertyChangeListener

public void removePropertyChangeListener(@Nullable
                                         String propertyName,
                                         @Nullable
                                         PropertyChangeListener listener)

Description copied from interface: Observable

Removes the given PropertyChangeListener from the listener list.

This method should be used to remove PropertyChangeListeners that were registered for an specific property of this class.

Specified by:

removePropertyChangeListener in interface Observable

Parameters:

propertyName - The name of the property that was listened on.

listener - the PropertyChangeListener to be removed

See Also:

Observable.addPropertyChangeListener(String, PropertyChangeListener)

getPropertyChangeListeners

@Nonnull
public PropertyChangeListener[] getPropertyChangeListeners()

Description copied from interface: Observable

Returns an array of all the listeners that were added with addPropertyChangeListener().

Specified by:

getPropertyChangeListeners in interface Observable

Returns:

all of the PropertyChangeListeners added or an empty array if no listeners have been added.

getPropertyChangeListeners

@Nonnull
public PropertyChangeListener[] getPropertyChangeListeners(@Nullable
                                                                    String propertyName)

Description copied from interface: Observable

Returns an array of all the listeners which have been associated with the named property.

Specified by:

getPropertyChangeListeners in interface Observable

Parameters:

propertyName - The name of the property being listened to

Returns:

all of the PropertyChangeListeners associated with the named property. If no such listeners have been added, or if propertyName is null, an empty array is returned.

firePropertyChange

protected void firePropertyChange(@Nonnull
                                  PropertyChangeEvent event)

firePropertyChange

protected void firePropertyChange(@Nonnull
                                  String propertyName,
                                  @Nullable
                                  Object oldValue,
                                  @Nullable
                                  Object newValue)