Core JavaServer faces by David Geary, Cay S. Horstmann

By David Geary, Cay S. Horstmann

JavaServer Faces (JSF) is the normal Java EE know-how for construction internet person interfaces. It offers a strong framework for constructing server-side functions, permitting you to cleanly separate visible presentation and alertness common sense. JSF 2.0 is a huge improve, which not just provides many beneficial positive aspects but in addition vastly simplifies the programming version through the use of annotations and “convention over configuration” for universal tasks.

 

To assist you quick faucet into the facility of JSF 2.0, the 3rd version of Core JavaServer™ Faces has been thoroughly up-to-date to make optimal use of the entire new positive aspects. The publication includes

  • Three completely new chapters on utilizing Facelets tags for templating, construction composite elements, and constructing Ajax applications
  • Guidance on development strong functions with minimum hand coding and greatest productivity–without requiring any wisdom of servlets or different low-level “plumbing”
  • A whole clarification of the elemental development blocks–from utilizing regular JSF tags, to operating with facts tables, and changing and validating input
  • Coverage of complicated initiatives, equivalent to occasion dealing with, extending the JSF framework, and connecting to exterior services
  • Solutions to various universal demanding situations, together with notes on debugging and troubleshooting, as well as implementation info and dealing code for beneficial properties which are lacking from JSF
  • Proven suggestions, tricks, counsel, and “how-tos” allow you to use JSF successfully on your improvement projects

Core JavaServer™ Faces, 3rd Edition, presents every little thing you must grasp the strong and time-saving positive factors of JSF 2.0 and is the correct consultant for programmers constructing Java EE 6 internet apps on Glassfish or one other Java EE 6-compliant software servers, in addition to servlet runners corresponding to Tomcat 6.

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Now the cycle repeats. You have just seen the two most important processing steps of the JSF framework: encoding and decoding. However, the processing sequence (also called the life cycle) is a bit more intricate. If everything goes well, you do not need to worry about the intricacies of the life cycle. However, when an error occurs, you will definitely want to understand what the framework does. In the next section, we look at the life cycle in greater detail. The Life Cycle The JSF specification defines six distinct phases, as shown in Figure 1–16.

You can format numbers as currency amounts by adding a suffix number,currency to the placeholder, like this: currentTotal=Your current total is {0,number,currency}. 95. 023,95 in Germany, using the local currency symbol and decimal separator convention. The choice format lets you format a number in different ways, such as “zero points”, “one point”, “2 points”, “3 points”, and so on. Here is the format string that achieves this effect: currentScore=Your current score is {0,choice,0#zero points|1#one point|2#{0} points}.

Therefore, either omit the DOCTYPE altogether or follow the outline given in the preceding note. Navigation To complete our JSF application, we need to specify the navigation rules. A navigation rule tells the JSF implementation which page to send back to the browser after a form has been submitted. In this case, navigation is simple. jsp. xml file contains the bean definitions. UserBean Sample Application Analysis session You can use the bean name, user, in the attributes of the user interface components.

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