Pro CDI 2 in Java EE 8: An In-Depth Guide to Context and Dependency Injection

© Jan Beernink and Arjan Tijms 2019

J. Beernink, A. TijmsPro CDI 2 in Java EE 8https://doi.org/10.1007/978-1-4842-4363-3_3

3. Identifying Beans

Jan Beernink¹  and Arjan Tijms²

(1)

Dublin, Ireland

(2)

Amsterdam, Noord-Holland, The Netherlands

 

One of the core responsibilities of CDI is to provide dependencies, which are beans in CDI. As you learned in the previous chapter, such beans can be obtained in various ways, namely, by having them injected in some way or by programmatic lookups. An important aspect of obtaining beans is that you need a way to specify which bean you want. In other words, you need to be able to identify beans. This raises the following questions: how are beans made identifiable, and how do you make sure someone can refer to your ...