How to add a column which represents a list of objects

Question

I want to create a class (which maps to a table in a MySQL databse) in java and it has the following members:

id (int)
policyNumber (string)
cost (double)
beneficiaries (list of Beneficiary objects)

And the Beneficiary class has the following members:

name (string)
gender (enum with Male or Female as possible values)
dateOfBirth (Date)

How would I create a column in my table that would represent a list of Beneficiary objects?

Answer 1

I would suggest adding a field to Beneficiary table/class that maps to the id of the previous one (eg policy_id )

(or use a mapping table if it's a many-to-many relationship)