class JavaBean(object):
def __init__(self):
self._changeSupport = None
def addPropertyChangeListener(self, *args):
if not self._changeSupport:
self._changeSupport = PropertyChangeSupport(self)
self._changeSupport.addPropertyChangeListener(*args)
def removePropertyChangeListener(self, *args):
if self._changeSupport:
self._changeSupport.removePropertyChangeListener(*args)
def firePropertyChange(self, propertyName, oldValue, newValue):
if self._changeSupport:
event = PropertyChangeEvent(self, propertyName, oldValue, newValue)
self._changeSupport.firePropertyChange(event)
def getPropertyChangeListeners(self, *args):
if self._changeSupport:
return self._changeSupport.getPropertyChangeListeners(*args)
return []
def hasListeners(self, *args):
if self._changeSupport:
return self._changeSupport.hasListeners(*args)
return False
class JavaBeanSupport(object):
"""
Class that provides support for listening to property change events.
This class does not provide a Java-compatible interface, so if you need
that, inherit directly from :class:`java.beans.PropertyChangeSupport`
instead.
"""
_changeSupport = None
def addPropertyChangeListener(self, *args):
if not self._changeSupport:
self._changeSupport = PropertyChangeSupport(self)
self._changeSupport.addPropertyChangeListener(*args)
def removePropertyChangeListener(self, *args):
if self._changeSupport:
self._changeSupport.removePropertyChangeListener(*args)
def firePropertyChange(self, propertyName, oldValue, newValue):
if self._changeSupport:
event = PropertyChangeEvent(self, propertyName, oldValue, newValue)
self._changeSupport.firePropertyChange(event)
def fireIndexedPropertyChange(self, propertyName, index, oldValue,
newValue):
if self._changeSupport:
event = IndexedPropertyChangeEvent(self, propertyName, oldValue,
newValue, index)
self._changeSupport.firePropertyChange(event)
def getPropertyChangeListeners(self, *args):
if self._changeSupport:
return self._changeSupport.getPropertyChangeListeners(*args)
return []
def hasListeners(self, *args):
if self._changeSupport:
return self._changeSupport.hasListeners(*args)
return False