
28 IBM WebSphere Portal for Multiplatforms V5 Handbook
changes to shared properties, or may implement a new property provider
interface, through which such notifications are delivered.
A property broker portlet filter (an instance of PortletFilter), which filters all
calls to portlets.
The portlet container, which invokes callbacks on the portlets to indicate the
start and end of the event processing phase, and which provides an API to
the portlet service to invoke selected methods on portlets.
Enabling for communities
WebSphere Portal 5.0, through its WebSphere Member Manager component,
provides support for communities as special groups wit ...