XMLEnumValue Case Insensitive in JAXB

Question

JAXB allows you to directly locate Enum instances from XML using annotation @XMLEnum. JAXB seems to be case sensitive when it comes to determining the value from @XMLEnumValue.

But I ran into a problem in which I needed to find an instance of Enum case insensitive. Does JAXB provide specific functionality? Without this, I am stuck in a manual search for the Enum constant.

I can use XMLAdapterfor this, but it is very tedious to maintain an adapter for each enum created.

EDIT:

Why should you find case-insensitive transfers?

Because I use xml to read the configuration for my system, and I do not want users to be limited to a fixed case. Hope this answers your question.

public class CaseInsensitiveEnumAdapter<E extends Enum<E>> extends XmlAdapter<String, E> {

    private final Class<E> clazz;

    public CaseInsensitiveEnumAdapter(Class<E> clazz) {
        this.clazz = clazz;
    }

    @Override
    public E unmarshal(String v) throws Exception {
        return Enum.<E>valueOf(clazz, v.toUpperCase().trim());
    }

    @Override
    public String marshal(E v) throws Exception {
        return v.name();
    }
}

.class , .