The following table lists the annotations included in the javax.annotation package:

List of annotations

Annotation name	Functionality
@PostConstruct	Specify the method that is called back immediately after the Servlet and Enterprise Bean instance are generated.
@PreDestroy	Specify the method that is called back immediately before deleting the Servlet, Enterprise Bean instance.
@Resource	Declare the resource reference.
@Resources	Specify multiple @Resources.

The following subsections describe the details of each annotation.

Organization of this section

2.2.1 @PostConstruct

2.2.2 @PreDestroy

2.2.3 @Resource

2.2.4 @Resources