Enum type as annotation parameter?

Question

How can I make my frameworks MyAnnotation have a user-defined enum type as the parameter?

Like @MyAnnotation(Colors.BLUE) . Another, less idea solution would be @MyAnnotation(Colors.BLUE.getName()) .

Edit: as in the enum is user-specified. I tried Enum<?> value() , but that didn't work

Answer 1

You can supply your enum element explicitly when defining the annotation for the relevant type.

enum MyEnum {
    MY_ELEMENT
}

@interface MyAnnotation {

    MyEnum value();

}

@MyAnnotation(value = MyEnum.MY_ELEMENT)
class MyClass {
    
}