public static Constant<Byte> create(byte i) {
        if (i >= 0) {
            return Constants.BYTES[i];
        } else {
            return new ConstantImpl<Byte>(Byte.class, i);
        }
    }
{@code ConstantImpl} is the default implementation of the {@link Constant} interface

@author tiwe
@param <T> expression type
querydsl-core/src/main/java/com/querydsl/core/types/ConstantImpl.java