@Entity
@Table(name = "USER", uniqueConstraints = { @UniqueConstraint(columnNames = { "user_id" }) })
public class UserDO {
   @Id
   @Column(name = "user_id", columnDefinition = "VARCHAR(255) NOT NULL DEFAULT ''", insertable = true)
   private String userId;

@OneToMany(cascade= CascadeType.ALL, mappedBy="userDO", fetch = FetchType.LAZY)
    private Set<AddressDO> userAddress;

public String getUserId() {
      return userId;
   }

   public void setUserId(String userId) {
      this.userId = userId;
   }

public Set<AddressDO> getUserAdrress() {
      return this.userAddress;
   }

   public void setUserAdrress(Set<AddressDO> userAddress) {
      this.userAddress = userAddress;
   }
}

@Entity
@Table(name = "ADDRESS",uniqueConstraints = {
      @UniqueConstraint(columnNames={"address_id"})}
)
public class AddressDO {

   @Id
   @GeneratedValue(strategy=GenerationType.AUTO)
    @Column(name = "address_id", insertable = true)
   private long  address_id;     

@ManyToOne
   @org.hibernate.annotations.Cascade(value = { org.hibernate.annotations.CascadeType.SAVE_UPDATE })
   @JoinColumn(name="user_id")   
   private UserDO userDO;

public long getAddress_id() {
      return address_id;
   }

   public void setAddress_id(long address_id) {
      this.address_id = address_id;
   }

public UserDO getUserDO() {
      return userDO;
   }

   public void setUserDO(UserDO userDO) {
      this.userDO = userDO;
   }

}