Download PDF by Josh Juneau: Introducing Java EE 7 A Look at What's New

By Josh Juneau

ISBN-10: 1430258489

ISBN-13: 9781430258483

Introducing Java EE 7 a glance at Whats New guides you thru the recent positive factors and improvements in all the applied sciences comprising the Java EE platform. Readers of this e-book would not have to plow through introductory fabric or details masking positive aspects which have been a part of the EE platform for years. in its place, builders can choose this e-book up and skim it to sweep up on these good points that experience replaced or were extra for the EE 7 unlock. this useful reference is helping you progress ahead from Java EE 6 to the hot EE 7 platform speedy and simply.

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Therefore, if there were more than one expression on the same line and the expressions were separated by semicolons, then the first expression would be evaluated, followed by the second, and so on. After each expression is evaluated, it is discarded, and the next expression is evaluated separately. Precedence Changes Operator precedence can become important if more than one operator exists in the same expression. It is important to understand which operator will be evaluated first so that the correct expression will be evaluated first.

JSF takes measures to prevent this type of attack because state is saved on the server side instead of on a client. 2 release, additional and stricter protection has been provided against this type of attack. By default, all postback requests are encrypted. If the page is not a postback request, then the following process occurs: 1. ViewHandler looks to see whether the view is listed within the element. If so, then the request is processed normally. 2. If the view is not listed under , the ViewHandler looks at the response header to determine whether the request is coming from another view within that same application.

If there are two or more parameters in use, then parentheses are required. Variable Assignment Sometimes it is useful to assign expressions to variables so that they can be passed around and utilized at a later time. This holds true for lambda expressions, because it allows for the encapsulation of a function, much like the concept of closures. The following EL demonstrates this concept by creating a lambda that returns the square root of a value that is passed in as a parameter: // Assign the lambda to an identifier sqrt = x -> x * x // Use the lambda at a later point sqrt(10) // returns 100 Nesting Nesting a lambda expression inside another can produce very useful results.

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