How do I add package level annotations or edit package-info.java?
I'm trying to add package level annotations but I don't have a clue on how to do it. Examples are appreciated.
In eclipse
Since package-info.java isn't a valid identifier for a class it cannot be created as a class in Eclipse.
I found that when you create a new package there is a check box to check if you want a package-info.java.
To create a package-info.java file in an existing package:
- Right-click on the package where you want a package-info.java.
- Select New->Package.
- Check the Create package-info.java check box.
- Click on Finish.
Summary from the article here
In package-info.java:
@PackageLevelAnnotation
package blammy; // package with a package level annotation.
import blammy.annotation.PackageLevelAnnotation;
In PackageLevelAnnotation.java
package blammy.annotation;
@Retention(RetentionPolicy.CLASS)
@Target(ElementType.PACKAGE)
public @interface PackageLevelAnnotation
{
// stuff as required.
}
Edit: more package level info. Here is a link to the package chapter in the Java Language Spec: packages