Beginning JBoss® Seam: From Novice to Professional by Joseph Faisal Nusairat

By Joseph Faisal Nusairat

Reacting to the recognition of J2EET possible choices resembling Ruby on Rails and the company Spring Framework, crimson Hat JBossR, Inc. built JBossR Seam, a brand new open resource light-weight JavaT EE 5-based contextual software improvement framework. starting JBossR Seam: From amateur to specialist will get you began because the first booklet in this well known framework. * Introduces JSFT and EJBT three basics which Seam makes use of and ties jointly * Explains easy and complicated Seam services and instruments * encompasses a functioning, in-depth demonstration so that you can greater how you can use Seam

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This method is where you can start to see the power of Seam. In fact, unlike the other examples that clearly required writing some database code or logic, this is all the code you would need to write on the server, assuming that the Restaurant object is an EB. Sample Applications What’s a book without examples? Obviously, we need applications on which to base our code. Many books have one example throughout the whole text, and although this can be a good method, it can make it overly complex to understand the sample code when trying to do simple things.

Now there are lots of different ways to log in to a website and many authentication models to use. In fact, Chapter 8 covers some Seam-specific ways of logging in. For this example, however, we are going to stick to a very basic authentication process: you attempt to log in with a username and password; if you are verified, your username will be saved to the session. The HttpSession object is a common object for saving login data because it will persist the entire time that you are active on the site.

Notice in the preceding example that the second-to-last line is return sum, which is a primitive even though the method is returning an object. As you can see, instead of having to use return new Integer(sum), the compiler will automatically box the primitive integer for you to an integer object. Now, with this ability you have to keep in mind a few things. I showed how easy it is to use autoboxing, so you should use it in places where you were originally going to do primitive-to-object transformations.

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