I have an entity, for address and an entity, for Person, and he has an attribute address_ids; in it, which is an int [] type, which contains an array of address"s id.
how to map this address_ids field directly to an object of List < Address >.
or is there any other way to implement
I use spring data jpa
because JDBC doesn't have this type, you have to implement the UserType interface of Hibernate yourself, and implement the mapping binding yourself.
Grails's postgresql plug-in learn about ? Its source code can be used as a reference to achieve the jsonb type and array type of postgresql.
this plug-in basically supports various data types of postgresql, which is done by defining UserType by yourself. The source code is under this package: https://github.com/kaleidos/g.
.one class @Entity public class Shuo{ @Id @GeneratedValue private int id; private String title; private Date date; String content; @ManyToOne(cascade = CascadeType.REFRESH) @JoinColumn(name = "user_id") private User user; : @OneT...
problem description In Hibernate @ OneToOne bidirectional association, how does the main table load lazily? related codes @Entity @Table(name = "db_user") public class User{ @Id @GeneratedValue(strategy = GenerationType.IDENTITY) ...