Running the Advanced Contexts and Dependency Injection Examples - The Java EE 6 Tutorial: Advanced Topics - page 276

Chapter 15. Running the Advanced Contexts and

Dependency Injection Examples

This chapter describes in detail how to build and run several advanced examples that use
CDI. The examples are in the tut-install /examples/cdi/ directory.
To build and run the examples, you will do the following:
1. Use NetBeans IDE or the Ant tool to compile, package, and deploy the example.
2. Run the example in a web browser.
Each example has a build.xml file that refers to files in the tut-install /examples/
bp-project/ directory.
See Chapter 2 , “ Using the Tutorial Examples , ” for basic information on installing, building,
and running the examples.
The following topics are addressed here:
• “ The encoder Example: Using Alternatives ” on page 265
• “ The producermethods Example: Using a Producer Method To Choose a Bean
Implementation ” on page 271
• “ The producerfields Example: Using Producer Fields to Generate Resources ”
on page 273
• “ The billpayment Example: Using Events and Interceptors ” on page 280
• “ The decorators Example: Decorating a Bean ” on page 286

The encoder Example: Using Alternatives

The encoder example shows how to use alternatives to choose between two beans at de-
ployment time, as described in “ Using Alternatives in CDI Applications ” on page 251 . The
example includes an interface and two implementations of it, a managed bean, a Facelets
page, and configuration files.

The Coder Interface and Implementations
The Coder interface contains just one method, codeString , that takes two arguments: a
string, and an integer value that specifies how the letters in the string should be transposed.