You use IBM® WebSphere® Portlet Factory's Designer to develop the portlet's functionality.
WebSphere Portlet Factory Designer includes several builders useful in developing portlets for IBM WebSphere Application Server in addition to the more general builders used for J2EE application development. These builders include:
Adding this builder call to a model allows for tighter integration with the Websphere Portal and allows you to define portlet information such as a name and description as well as specifying the HTML pages or WebSphere Portlet Factory models to be used when the user configures or edits the portlet.Event Declaration
Adding this builder call to a model allows you to declare an event that can be handled through the Websphere Portal's event processes. Other portlets, whether they are created with WebSphere Portlet Factory or not, may handle these events.Portlet Customizer
Adding this builder call to a model allows you to quickly create custom Configure and Edit models for a particular portlet.
Parent topic: IBM WebSphere Portlet Factory overview