FilterObserver
==============

.. java:package:: rsb.filter
   :noindex:

.. java:type:: public interface FilterObserver

   Interface for classes that want to be notified about changes to registered \ :java:ref:`Filter`\  instances.

   :author: jwienke, swrede

Methods
-------
notify
^^^^^^

.. java:method::  void notify(Filter filter, FilterAction action)
   :outertype: FilterObserver

   Called in case a \ :java:ref:`Filter`\  was changed.

   :param filter: the \ :java:ref:`Filter`\  that changes, not \ ``null``\
   :param action: the action that was performed with this filter, not \ ``null``\