Storing EnumSet in a database?

Question

So in C++/C# you can create flags enums to hold multiple values, and storing a single meaningful integer in the database is, of course, trivial.

In Java you have Enu

Answer 1

It struck me as a surprise that nobody was suggesting a well-maintained library instead of writing your own. The above answer is spot on and educational but it just encourages people to copy and paste code around (then mostly forget the credits).

Here's my 2 cents:

EnumSet mySet = EnumSet.of(YourEnum.FIRST);
long vector = EnumUtils.generateBitVector(YourEnum.class, mySet);
EnumSet sameSet = EnumUtils.processBitVector(YourEnum.class, vector);

See https://commons.apache.org/proper/commons-lang/apidocs/org/apache/commons/lang3/EnumUtils.html