Jesse Wilson | 66e84b9 | 2009-12-10 17:45:56 -0800 | [diff] [blame^] | 1 | package javax.annotation; |
| 2 | |
| 3 | import java.lang.annotation.Documented; |
| 4 | import java.lang.annotation.Retention; |
| 5 | import java.lang.annotation.RetentionPolicy; |
| 6 | |
| 7 | import javax.annotation.meta.TypeQualifier; |
| 8 | import javax.annotation.meta.TypeQualifierValidator; |
| 9 | import javax.annotation.meta.When; |
| 10 | |
| 11 | @Documented |
| 12 | @TypeQualifier |
| 13 | @Retention(RetentionPolicy.RUNTIME) |
| 14 | public @interface Nonnull { |
| 15 | When when() default When.ALWAYS; |
| 16 | |
| 17 | static class Checker implements TypeQualifierValidator<Nonnull> { |
| 18 | |
| 19 | public When forConstantValue(Nonnull qualifierqualifierArgument, |
| 20 | Object value) { |
| 21 | if (value == null) |
| 22 | return When.NEVER; |
| 23 | return When.ALWAYS; |
| 24 | } |
| 25 | } |
| 26 | } |