| PortletConfigAware | Actions that wants a reference to the PortletConfig object can implement this interface. | code | html |
| PortletContextAware | code | html | |
| PortletPreferencesAware | All Actions that want to have access to the portlet preferences should implement this interface. | code | html |
| PortletRequestAware | code | html | |
| PortletResponseAware | code | html |
| PortletAwareInterceptor | code | html | |
| PortletPreferencesInterceptor | An interceptor which provides an implementation of PortletPreferences if the Action implements PortletPreferencesAware. | code | html |
| PortletPrincipalProxy | PrincipalProxy implementation for using PortletRequest Principal related methods. | code | html |
| PortletStateInterceptor | code | html | |
| ServletPortletPreferences | Simple portlet preferences implementation that uses a map in the Session as storage. | code | html |