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All Implemented Interfaces:

Serializable

public class PropertyChangeSupport
extends Object
implements Serializable

See Also:

Serialized Form

• Constructor Summary

  Constructors

  Constructor and Description
  PropertyChangeSupport(Object sourceBean) Creates a new instance that uses the source bean as source for any event.

• Method Summary

  Methods

  Modifier and Type	Method and Description
  void	addPropertyChangeListener(PropertyChangeListener listener) Subscribes listener to change notifications for all properties.
  void	addPropertyChangeListener(String propertyName, PropertyChangeListener listener) Subscribes listener to change notifications for the property named propertyName.
  void	fireIndexedPropertyChange(String propertyName, int index, boolean oldValue, boolean newValue) Fires a property change of a boolean property with the given name.
  void	fireIndexedPropertyChange(String propertyName, int index, int oldValue, int newValue) Fires a property change of an integer property with the given name.
  void	fireIndexedPropertyChange(String propertyName, int index, Object oldValue, Object newValue) Fires an IndexedPropertyChangeEvent with the given name, old value, new value and index.
  void	firePropertyChange(PropertyChangeEvent event) Publishes a property change event to all listeners of that property.
  void	firePropertyChange(String propertyName, boolean oldValue, boolean newValue) Fires a property change of a boolean property with the given name.
  void	firePropertyChange(String propertyName, int oldValue, int newValue) Fires a property change of an integer property with the given name.
  void	firePropertyChange(String propertyName, Object oldValue, Object newValue) Fires a PropertyChangeEvent with the given name, old value and new value.
  PropertyChangeListener[]	getPropertyChangeListeners() Returns all subscribers.
  PropertyChangeListener[]	getPropertyChangeListeners(String propertyName) Returns the subscribers to be notified when propertyName changes.
  boolean	hasListeners(String propertyName) Returns true if there are listeners registered to the property with the given name.
  void	removePropertyChangeListener(PropertyChangeListener listener) Unsubscribes listener from change notifications for all properties.
  void	removePropertyChangeListener(String propertyName, PropertyChangeListener listener) Unsubscribes listener from change notifications for the property named propertyName.

  • Methods inherited from class java.lang.Object

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

• Constructor Detail

  • PropertyChangeSupport

    public PropertyChangeSupport(Object sourceBean)

    Creates a new instance that uses the source bean as source for any event.

    Parameters:

    sourceBean - the bean used as source for all events.

• Method Detail

  • firePropertyChange

    public void firePropertyChange(String propertyName,
                          Object oldValue,
                          Object newValue)

    Fires a PropertyChangeEvent with the given name, old value and new value. As source the bean used to initialize this instance is used. If the old value and the new value are not null and equal the event will not be fired.

    Parameters:

    propertyName - the name of the property

    oldValue - the old value of the property

    newValue - the new value of the property

  • fireIndexedPropertyChange

    public void fireIndexedPropertyChange(String propertyName,
                                 int index,
                                 Object oldValue,
                                 Object newValue)

    Fires an IndexedPropertyChangeEvent with the given name, old value, new value and index. As source the bean used to initialize this instance is used. If the old value and the new value are not null and equal the event will not be fired.

    Parameters:

    propertyName - the name of the property

    index - the index

    oldValue - the old value of the property

    newValue - the new value of the property

  • removePropertyChangeListener

    public void removePropertyChangeListener(String propertyName,
                                    PropertyChangeListener listener)

    Unsubscribes listener from change notifications for the property named propertyName. If multiple subscriptions exist for listener, it will receive one fewer notifications when the property changes. If the property name or listener is null or not subscribed, this method silently does nothing.

  • addPropertyChangeListener

    public void addPropertyChangeListener(String propertyName,
                                 PropertyChangeListener listener)

    Subscribes listener to change notifications for the property named propertyName. If the listener is already subscribed, it will receive an additional notification when the property changes. If the property name or listener is null, this method silently does nothing.

  • getPropertyChangeListeners

    public PropertyChangeListener[] getPropertyChangeListeners(String propertyName)

    Returns the subscribers to be notified when propertyName changes. This includes both listeners subscribed to all property changes and listeners subscribed to the named property only.

  • firePropertyChange

    public void firePropertyChange(String propertyName,
                          boolean oldValue,
                          boolean newValue)

    Fires a property change of a boolean property with the given name. If the old value and the new value are not null and equal the event will not be fired.

    Parameters:

    propertyName - the property name

    oldValue - the old value

    newValue - the new value

  • fireIndexedPropertyChange

    public void fireIndexedPropertyChange(String propertyName,
                                 int index,
                                 boolean oldValue,
                                 boolean newValue)

    Fires a property change of a boolean property with the given name. If the old value and the new value are not null and equal the event will not be fired.

    Parameters:

    propertyName - the property name

    index - the index of the changed property

    oldValue - the old value

    newValue - the new value

  • firePropertyChange

    public void firePropertyChange(String propertyName,
                          int oldValue,
                          int newValue)

    Fires a property change of an integer property with the given name. If the old value and the new value are not null and equal the event will not be fired.

    Parameters:

    propertyName - the property name

    oldValue - the old value

    newValue - the new value

  • fireIndexedPropertyChange

    public void fireIndexedPropertyChange(String propertyName,
                                 int index,
                                 int oldValue,
                                 int newValue)

    Fires a property change of an integer property with the given name. If the old value and the new value are not null and equal the event will not be fired.

    Parameters:

    propertyName - the property name

    index - the index of the changed property

    oldValue - the old value

    newValue - the new value

  • hasListeners

    public boolean hasListeners(String propertyName)

    Returns true if there are listeners registered to the property with the given name.

    Parameters:

    propertyName - the name of the property

    Returns:

    true if there are listeners registered to that property, false otherwise.

  • removePropertyChangeListener

    public void removePropertyChangeListener(PropertyChangeListener listener)

    Unsubscribes listener from change notifications for all properties. If the listener has multiple subscriptions, it will receive one fewer notification when properties change. If the property name or listener is null or not subscribed, this method silently does nothing.

  • addPropertyChangeListener

    public void addPropertyChangeListener(PropertyChangeListener listener)

    Subscribes listener to change notifications for all properties. If the listener is already subscribed, it will receive an additional notification. If the listener is null, this method silently does nothing.

  • getPropertyChangeListeners

    public PropertyChangeListener[] getPropertyChangeListeners()

    Returns all subscribers. This includes both listeners subscribed to all property changes and listeners subscribed to a single property.

  • firePropertyChange

    public void firePropertyChange(PropertyChangeEvent event)

    Publishes a property change event to all listeners of that property. If the event's old and new values are equal (but non-null), no event will be published.