Saturday Oct 25

Key Concepts

Java Server Faces 2.0

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JSF2

JavaServer Faces (JSF Faces) is a standardized specification for building User Interfaces (UI) for server-side applications. Before JavaServer Faces, developers who built web applications often relied on building HTML user interface components with servlets or JavaServer Pages (JSP pages).

JavaServer Faces (JSF) is a user interface (UI) framework for Java web applications. It is designed to significantly ease the burden of writing and maintaining applications that run on a Java application server and render their UIs back to a target client.

JSF provides ease-of-use in the following ways:

  • Makes it easy to construct a UI from a set of reusable UI components 
  • Simplifies migration of application data to and from the UI 
  • Helps manage UI state across server requests 
  • Provides a simple model for wiring client-generated events to server-side application code 
  • Allows custom UI components to be easily built and re-used

Foundational new features in JSF 2.0

These features were developed by the expert group specifically to enable other features in JSF 2.0

  • System Events provides a very fined-grained level of detail to observe and act upon the JSF runtime as it processes requests. It is described in detail in Chapter 9.
  • Resources feature allows the JSF runtime to serve up static resources, such as style sheets, scripts, and images, in addition to the previously available capability to serve up JSF pages. 
  • Facelets began as an open-source JSF extension that provided first-class templating and easy integration between markup and the JSF API. This made the experience of writing JSF pages easier and more maintainable. Facelets is now fully included in the core JSF specification in version 2.0 

New Features in JSF 2

  • Ajax JSF 2 provides now a native support for Ajax. Ajax is an essential element of most production-quality Web applications currently in production. Ajax enables JSF views to communicate with the server directly from the browser without requiring a full-page refresh of the browser window.
  • Composite Components JSF 2 provides a simple way to implement custom components with composites. JSF 2 lets you implement user interfaces that are easy to modify and extend with two powerful features: templating and composite components

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1 JSF Ajax Administrator 51493
2 File upload with Primefaces Administrator 46954
3 JSF Annotations Administrator 43229
4 JSF 2 Lifecycle Administrator 34484
5 JSF 2 Configuration parameters Administrator 31146
6 JSF Project Stage Administrator 26317
7 JSF 2 Exception Handling and Formatting Administrator 24236
8 Write a JSF 2 custom EL resolver Administrator 18984
9 JSF datatable example Administrator 18907
10 JSF 2 passing parameters Administrator 17871

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