| Name | Package | Description |
| ActionRequest | javax.portlet | The ActionRequest represents the request sent to the portlet
to handle an action. |
| ActionResponse | javax.portlet | The ActionResponse interface represents the portlet
response to an action request. |
| PortalContext | javax.portlet | The PortalContext interface gives the portlet
the ability to retrieve information about the portal calling this portlet. |
| Portlet | javax.portlet | The Portlet interface is used by the portlet container to
invoke the portlets. |
| PortletConfig | javax.portlet | The PortletConfig interface provides the portlet with
its configuration. |
| PortletContext | javax.portlet | The PortletContext interface defines a portlet view
of the portlet container. |
| PortletPreferences | javax.portlet | The PortletPreferences interface allows the portlet to store
configuration data. |
| PortletRequest | javax.portlet | The PortletRequest defines the base interface to provide client
request information to a portlet. |
| PortletRequestDispatcher | javax.portlet | The PortletRequestDispatcher interface
defines an object that receives requests from the client
and sends them to the specified resources (such as a servlet,
HTML file, or JSP file) on the server. |
| PortletResponse | javax.portlet | The PortletResponse defines the base interface to assist a
portlet in creating and sending a response to the client. |
| PortletSession | javax.portlet | The PortletSession interface provides a way to identify a user
across more than one request and to store transient information about that user. |
| PortletURL | javax.portlet | The PortletURL interface represents a URL
that reference the portlet itself. |
| PreferencesValidator | javax.portlet | The PreferencesValidator allows to validate the set of
preferences of the associated portlet just before they are
stored in the persistent store. |
| RenderRequest | javax.portlet | The RenderRequest represents the request sent to the portlet
to handle a render. |
| RenderResponse | javax.portlet | The RenderResponse defines an object to assist a portlet in
sending a response to the portal. |