8.2.8.2. Use Stereotypes

Task Summary

Without stereotypes, annotations can become cluttered. This task shows you how to use stereotypes to reduce the clutter and streamline your code. For more information about what stereotypes are, see Section 8.2.8.1, “About Stereotypes”.

Example 8.14. Annotation clutter

@Secure
@Transactional
@RequestScoped
@Named
public class AccountManager {
  public boolean transfer(Account a, Account b) {
    ...
  }
}

Procedure 8.5. Task

  1. Define the stereotype,

    @Secure
@Transactional
@RequestScoped
@Named
@Stereotype
@Retention(RUNTIME)
@Target(TYPE)
public @interface BusinessComponent {
 ...
}

  2. Use the stereotype.

    @BusinessComponent
public class AccountManager {
  public boolean transfer(Account a, Account b) {
    ...
  }
}
Result:

Stereotypes streamline and simplify your code.