Author.java

@Entity
public class Author {
	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	@Column(name = “id”, updatable = false, nullable = false)
	private Long id;
	
	@Column
	private LocalDate dateOfBirth;

	@Formula(value = “date_part(‘year’, age(dateOfBirth))”)
	private int age;
	…
	public int getAge() {
		return age;
	}
}

hibernate.log

05:35:15,762 DEBUG [org.hibernate.SQL] – select author0_.id as id1_0_, author0_.dateOfBirth as dateOfBi2_0_, author0_.firstName as firstNam3_0_, author0_.lastName as lastName4_0_, author0_.version as version5_0_, date_part(‘year’, age(author0_.dateOfBirth)) as formula0_ from Author author0_ where author0_.id=1