Iterate enum values using java generics

Question

I\'m trying to find a way to iterate through an enum\'s values while using generics. Not sure how to do this or if it is possible.

The following code illustrates

Answer 1

If you are sure that selectedOption of the constructor Filter(T selectedOption) is not null. You can use reflection. Like this.

public class Filter {
    private List availableOptions = new ArrayList();
    private T selectedOption;

    public Filter(T selectedOption) {
        this.selectedOption = selectedOption;
        for (T option : this.selectedOption.getClass().getEnumConstants()) {  // INVALID CODE
            availableOptions.add(option);
        }
    }
}

Hope this helps.