java.beans

Class VetoableChangeListenerProxy

public class VetoableChangeListenerProxy extends EventListenerProxy implements VetoableChangeListener

This class provides an extension to VetoableChangeListener - associating a name with the listener. This can be used to filter the changes that one is interested in.

Since: 1.4

UNKNOWN: udpated to 1.4

Constructor Summary
	VetoableChangeListenerProxy(String propertyName, VetoableChangeListener listener) Create a new proxy which filters property change events and only passes changes to the named property on to the delegate.

Method Summary
String	getPropertyName() Gets the name of the property this proxy is filtering on.
void	vetoableChange(PropertyChangeEvent event) Forwards the event on to the delegate if the property name matches.

Constructor Detail

VetoableChangeListenerProxy

public VetoableChangeListenerProxy(String propertyName, VetoableChangeListener listener)

Create a new proxy which filters property change events and only passes changes to the named property on to the delegate.

Parameters: propertyName the property's name to filter on listener the delegate listener

Method Detail

getPropertyName

public String getPropertyName()

Gets the name of the property this proxy is filtering on.

Returns: the property name

vetoableChange

public void vetoableChange(PropertyChangeEvent event)

Forwards the event on to the delegate if the property name matches.

Parameters: event the event to pass on, if it meets the filter

Throws: NullPointerException if the delegate this was created with is null PropertyVetoException if the change is vetoed by the listener