Enum inheritance

Hi!

I'd like to make this data structure:

enumBase{
A,B,C;
}

enumExt{
E,F,G;
}

I'd like enumExt(and there will be more ext.) to know about A,B,C but unfortunatelly the enum couldn't be extended. Is there any technic or design pattern for this?

Thanks in advance!

Enums should be used for constant values. It does not make sense to have an inheritance relationship between constants.