com.jgoodies.common.bean

Interface ObservableBean2

All Superinterfaces:

ObservableBean

All Known Subinterfaces:

IActionBean

All Known Implementing Classes:

Bean

public interface ObservableBean2
extends ObservableBean

In addition to its super interface ObservableBean, this interface describes the optional support for registering PropertyChangeListeners for an individual property name. This interface is primarily intended to ensure compile-time safety for beans that shall be observed.

See Also:

PropertyChangeListener, PropertyChangeEvent, PropertyChangeSupport

Method Summary

Modifier and Type	Method and Description
void	addPropertyChangeListener(java.lang.String propertyName, java.beans.PropertyChangeListener listener) Adds a PropertyChangeListener to the listener list for a specific property.
java.beans.PropertyChangeListener[]	getPropertyChangeListeners() Returns an array of all the property change listeners registered on this component.
java.beans.PropertyChangeListener[]	getPropertyChangeListeners(java.lang.String propertyName) Returns an array of all the listeners which have been associated with the named property.
void	removePropertyChangeListener(java.lang.String propertyName, java.beans.PropertyChangeListener listener) Removes a PropertyChangeListener from the listener list for a specific property.

Methods inherited from interface com.jgoodies.common.bean.ObservableBean

addPropertyChangeListener, removePropertyChangeListener

Method Detail

addPropertyChangeListener

void addPropertyChangeListener(java.lang.String propertyName,
                               java.beans.PropertyChangeListener listener)

Adds a PropertyChangeListener to the listener list for a specific property. The specified property may be user-defined.

Note that if this bean is inheriting a bound property, then no event will be fired in response to a change in the inherited property.

If listener is null, no exception is thrown and no action is performed.

Parameters:

propertyName - one of the property names listed above

listener - the PropertyChangeListener to be added

See Also:

ObservableBean.removePropertyChangeListener(PropertyChangeListener), removePropertyChangeListener(String, PropertyChangeListener), ObservableBean.addPropertyChangeListener(PropertyChangeListener), getPropertyChangeListeners(String)

removePropertyChangeListener

void removePropertyChangeListener(java.lang.String propertyName,
                                  java.beans.PropertyChangeListener listener)

Removes a PropertyChangeListener from the listener list for a specific property. This method should be used to remove PropertyChangeListeners that were registered for a specific bound property.

If listener is null, no exception is thrown and no action is performed.

Parameters:

propertyName - a valid property name

listener - the PropertyChangeListener to be removed

See Also:

ObservableBean.addPropertyChangeListener(PropertyChangeListener), addPropertyChangeListener(String, PropertyChangeListener), ObservableBean.removePropertyChangeListener(PropertyChangeListener), getPropertyChangeListeners(String)

getPropertyChangeListeners

java.beans.PropertyChangeListener[] getPropertyChangeListeners()

Returns an array of all the property change listeners registered on this component.

Returns:

all of this component's PropertyChangeListeners or an empty array if no property change listeners are currently registered

See Also:

ObservableBean.addPropertyChangeListener(PropertyChangeListener), ObservableBean.removePropertyChangeListener(PropertyChangeListener), getPropertyChangeListeners(String), PropertyChangeSupport.getPropertyChangeListeners()

getPropertyChangeListeners

java.beans.PropertyChangeListener[] getPropertyChangeListeners(java.lang.String propertyName)

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

Parameters:

propertyName - the name of the property to lookup listeners

Returns:

all of the PropertyChangeListeners associated with the named property or an empty array if no listeners have been added

See Also:

addPropertyChangeListener(String, PropertyChangeListener), removePropertyChangeListener(String, PropertyChangeListener), getPropertyChangeListeners()