javax.portlet

Interface EventPortlet

All Known Implementing Classes:

GenericPortlet

public interface EventPortlet

The EventPortlet interface allows portlets receiving events.

Events are part of the action processing and must be finished before the rendering phase can start. Portlets can receive events issued by other portlets or portlet container defined events.

Portlets should declare the events it would like to receive via the supported-processing-event tag and events published via the supported-publishing-event tag in the portlet deployment descriptor.

The event model is a loosely coupled model where the wiring between published and receiving events is done at the portal / portlet container level.

Since:

2.0

Method Summary

Modifier and Type	Method and Description
void	processEvent(EventRequest request, EventResponse response) Called by the portlet container requesting the portlet to process a specific event.

Method Detail

processEvent

void processEvent(EventRequest request,
                  EventResponse response)
           throws PortletException,
                  IOException

Called by the portlet container requesting the portlet to process a specific event.

Parameters:

request - the event request

response - the event response

Throws:

PortletException - if the portlet has problems fulfilling the request

UnavailableException - if the portlet is unavailable to process the event at this time

PortletSecurityException - if the portlet cannot fulfill this request due to security reasons

IOException - if the streaming causes an I/O problem