1. Portlets in uPortal uPortal Domain Objects Portlet Application Deployment Portlet Deployment –Information from portlet.xml file Portlet Application Definition Portlet Definition –Deployment + Preferences Portlet Application Entity Portlet Entity –Definition + Preferences Portlet Window –Instances of Portlet Entity painted on screen –Carries Portlet Window State

2. Portlets in uPortal uPortal 3.0 Domain Object Architecture Database DAO’s Registries DAO Implementations e.g. Spring JDBC Caching uPortal Framework Domain objects Transfer objects Domain Object Factories

3. Portlets in uPortal uPortal 3.0 Rendering Architecture Context X Context A … Context Resolver Default Context Parameter processing Rendering pipeline Layout generator Transformer … Filter Serializer Selects a context to process the incoming request Parses request URL and initiates actions on: Portlets Rendering pipeline elements Generates initial user layout Aggregated layouts Simple layouts Chain of transformers and filters compiles presentation markup.