Patterns and Anti-Patterns in Annotations

Question

Is there some style guide for designing annotation interfaces?
I've read that the following pattern:
public @interface Bean { ...
public @interface Field { ...
@Bean class MyBean {
    public @Field String address;
    public @Field double income;
}instead of writing something like this:
class MyBean implements Serializable {
    private String address;
    private double income;
    public String getAddress() {...;} public void setAddress(String s) {...;}
    public String getIncome() {...;} public void setIncome(double d) {...;}
}is an Anti-Pattern. Why such usage is an Anti-Pattern?

Answer 1

By following the second pattern, you will be able to intercept access to the underlying fields "address" and "income". If you follow the first pattern, access will be performed directly on the underlying data, with no way to change the implementation in the future.