Liferay
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Portlet development using Liferay Presentation provides an overview of portlets and portlet containers. It discusses key concepts such as portlet standards JSR 168 and JSR 286, portlet modes and window states, portlet entity storage, portlet deployment, portlet methods, portlet sessions, and popular portal vendors including Liferay. The presentation introduces portlets as pluggable UI components that can be placed on portals, which are collections of portlets, and discusses how portlet containers manage the portlet lifecycle and provide persistent storage.
Liferay
- 1. Portlet development using Liferay Presentation by: Arun.
- 2. Yahoo- One of the first
- 3. Portlet Pluggable UI s/w components. Non-overlapping windows. Can be placed anywhere.
- 4. Portal Collection of portlets. Web based application. Single Sign on.
- 5. Portlet Container Runs Portlets. Portlet life cycle is managed by containner. Persistent storage of preferences.
- 6. Similarities Servlets Web based components Servlet container Static and Dynamic contents Lifecycle controlled by container Request Response semantics similar Portlets Web based components Portlet container Static and Dynamic contents Lifecycle controlled by container Request Response semantics similar
- 7. Differences Servlets Complete web pages Html tags allowed Direct Url access Portlets Fragments Not allowed Points to the page
- 8. Features * Communication between the web client and the portlets performed through the portal * Provided with buttons or controls to manipulate portlets’ window states or portlet modes * Multiple instances of a single portlet placed onto the same page
- 9. contd: *Persistent configuration and customization * Support user profile information * Two scopes within the session; application scope and portlet scope
- 10. Portlet Standards JSR 168. JSR 286.
- 11. JSR-286 Features Events. Public render parameters. Resource Serving. Portlet Filters.
- 12. Modes & Window State View Edit Help Maximized Minimized Normal
- 13. Portlet Entity Storing user preferences in persistent data store. Available across server restarts. Preferences & portlet definitions in deployment descriptor. Preferences are given in key/value pair.
- 14. Portlet Deployment Deploying web application in application server. Deploying portlets in portal server.
- 15. Portlet methods doView(RenderRequest req,RenderResponse res) processAction(ActionRequest req,ActionResponse res) doEdit(RenderRequest req,RenderResponse res) serveResource(RenderRequest req,RenderResponse res)
- 16. Portlet Session PORTLET_SCOPE : Storing data specific to a single portlet instance within a user's Session. APPLICATION_SCOPE: Across all portlets within the same session.
- 17. Portal Vendors JetSpeed 2.1.3 ATG Portal AquaLogic Weblogic Sun Java System Portal Server 7.2 Portal 10 Liferay Portal 5.2.2
- 18. Why Liferay? * Zero License Fees * Open Source * Standards Support * High Compatibility * Pre-Bundled Portlets * High-Value Support Contracts
- 19. Thanks :-)