java - 具有外键关系的 Hibernate 子类

Question

我需要一些帮助在 Hibernate 中定义以下对象层次结构/数据库关系

从对象意义上来说——Agent继承自Person，Agency继承自Organization。它们是从可以有多个与其关联的地址的一方继承的

数据库包括

Agent
-ID
-Name
-PartyID (references Party.ID)

Agency
-ID
-Name
-PartyID (references Party.ID)

Address
-AddrID
-PartyID (references Party.ID)
-Street

Party.
-PartyID

Answer 1

像下面这样的事情可能是一个开始

@Entity
public class Party {

  @Id
  private BigInteger partyID;

  private String name;

  @OneToMany(mappedBy="party")
  private Set<Address> addresses;

} 

@Entity
public class Organization extends Party {} 

@Entity
public class Person extends Party {} 

@Entity
public class Agency extends Organization {} 

@Entity
public class Agent extends Person {}

@Entity
public class Address{

  @Id
  private BigInteger addressID;

  @ManyToOne
  private Party party;

  private String street;
}