annotation example

[Poornima Sharma]

Hi Friends,

We all use annotations, but how can we create our own annotations. Does anybody know any tutorial or something which describes the process to write our own annotations?

I tired to look into the source code of @Deprecated annotations and I found the below code:-

@Documented
@Retention(RetentionPolicy.RUNTIME)
public @interface Deprecated {
}

But I want to know the implementation behind such codes, or how can we write our own annotations.

Thanks in advance.

Poornima

[Kemal Sokolovic]

Please SearchFirst, this question has already been asked on this forum:
Create custom annotation

[Poornima Sharma]

There are lot of questions that are asked twice or more in this forum. If someone is not satisfied or the answer does not solve his ultimate purpose then i suppose she/he can ask the question again. I don't think that it is an issue.

That question was asked my me about 1.5 years ago but I haven't been able to find good content on annotation yet. Since then lot of people have learnt lots of things and they might have learnt lot of new ways to solve a particular task. Hence I feel that it is perfectly fine to ask the question again.

[Kemal Sokolovic]

We all use annotations, but how can we create our own annotations. Does anybody know any tutorial or something which describes the process to write our own annotations?

That was part of your original question, right? You got both reference to a tutorial and books on the subject, and also a description of the process of writting your own annotations.
Unless you didn't write everything you are looking for, I think everything answering your original question is there.

[Jesper de Jong]

Poornima Sharma wrote:Does anybody know any tutorial or something which describes the process to write our own annotations?

Oracle's Java Tutorials: Annotations