protected void fireAttributeChange ( AttributeChangeEvent event ) { if ( this . listeners != null && isEventFirable ( ) ) { final AttributeChangeListener [ ] list = new AttributeChangeListener [ this . listeners . size ( ) ] ; this . listeners . toArray ( list ) ; for ( final AttributeChangeListener listener : list ) { listener . onAttributeChangeEvent ( event ) ; } } }
Notifies the listeners about the change of an attribute .