© Josh Juneau 2020
J. JuneauJakarta EE Recipeshttps://doi.org/10.1007/978-1-4842-5587-2_11

11. Contexts and Dependency Injection

Josh Juneau1 
(1)
Hinckley, IL, USA
 
One of the most important specifications in the Jakarta EE platform is Jakarta Contexts and Dependency Injection (CDI). As stated on the cdi-spec.org site, it is a suite of complementary services that can improve the overall structure and design of code. The specification provides the following features for Jakarta EE and Java SE applications, as per the cdi-spec.org:

  • Contextual objects with a well-defined life cycle providing multiple scopes of availability

  • Ability to bind directly between contextual objects and Unified Expression Language (EL)

  • Dependency injection utilizing a type-safe ...

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