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Mastering JavaServer Faces 2.2
book

Mastering JavaServer Faces 2.2

by Anghel Leonard
June 2014
Intermediate to advanced content levelIntermediate to advanced
578 pages
12h 2m
English
Packt Publishing
Content preview from Mastering JavaServer Faces 2.2

EL value expressions

Value expressions are probably used the most, and they refer to objects and their properties and attributes. Such expressions are dynamically used to evaluate results or set bean properties at runtime. Through value expressions, you can easily access JavaBeans components, collections, and Java SE enumerated types. Moreover, EL provides a set of implicit objects that can be used to get attributes from different scopes and parameter values. Furthermore, you will see how EL deals with each of these objects.

Note

Value expressions that can read data, but cannot write it are known as rvalue (${} expressions are always rvalue), while those that can read and write data are known as lvalue (#{} expressions can be rvalue and/or lvalue). ...

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Publisher Resources

ISBN: 9781782176466Supplemental Content