Portlet Event API Implementation

Portlet events are a part of the Portlet API and permit actions to be genererated by the portlet container when a change of state occurs in the portlet window, a message is sent to another portlet, or a portlet action is performed. The {@link org.gridlab.gridsphere.portlet.AbstractPortlet} provides base implementations of the portlet event listener methods and should be overriden for particular event handling.

The current component event implementations are:

- {@link org.gridlab.gridsphere.event.impl.ActionEventImpl}
- {@link org.gridlab.gridsphere.event.impl.MessageEventImpl}
- {@link org.gridlab.gridsphere.event.impl.WindowEventImpl}