How should I store an Java Enum in JavaDB?

Should I try to map the enums to `SMALLINT` and keep the values in source code only? The embedded database is only used by a single application. Or should I just store the values as `DECIMAL`? None of these solutions feels good/robust for me. Is there any better alternatives?

Here is my enum:

```
import java.math.BigDecimal;

public enum Vat {
    NORMAL(new BigDecimal("0.25")),
    FOOD(new BigDecimal("0.12")),
    BOOKS(new BigDecimal("0.06")),
    NONE(new BigDecimal("0.00"));

    private final BigDecimal value;

    Vat(BigDecimal val) {
        value = val;
    }

    public BigDecimal getValue() {
        return value;
    }
}

```

I have read other similar questions on this topic, but the problem or solution doesn't match my problem. [Enum storage in Database field](https://stackoverflow.com/questions/1015058/enum-storage-in-database-field), [Best method to store Enum in Database](https://stackoverflow.com/questions/2646498/best-method-to-store-enum-in-database), [Best way to store enum values in database - String or Int](https://stackoverflow.com/questions/1612319/best-way-to-store-enum-values-in-database-string-or-int)