JPA Derived Column value based on Identity column

Question

JPA 2.0 (Hibernate 4.2.4.Final/Spring 3.2.8.Release) / Mysql 5.6

For a managed entity E w/ auto-generated primary key e.g.

...
@Id
@GeneratedValue
pr         


        

Answer 1

The best solution is to simply compute the Column value upon loading, using @Formula:

@Formula(value="':'||id||':'")
private String foo;