很抱歉，如果这是一个微不足道的问题，或者我误解了某些内容并且这个概念是错误的。
我有休息表：
External_Users_Details：
+------------------+--------+------------+
| External_User_Id | Key | Value |
+------------------+--------+------------+
| 1 | f_name | firstname |
| 1 | l_name | lastneme |
| 2 | f_name | firstname2 |
| 2 | l_name | lastneme2 |
+------------------+--------+------------+
Response_Details
╔════════════╦═════════════╦══════════════╦══════════════════╗
║ Meeting_Id ║ Attendee_Id ║ Response_Seq ║ Response_Messege ║
╠════════════╬═════════════╬══════════════╬══════════════════╣
║ 123 ║ 1 ║ 1 ║ I will be there ║
║ 123 ║ 1 ║ 2 ║ Changed my mind ║
║ 123 ║ 2 ║ 1 ║ Yep. ║
║ 123 ║ 123456 ║ 1 ║ I will be there. ║
╚════════════╩═════════════╩══════════════╩══════════════════╝
现在，外部用户存储在具有键值对的表中，复杂的@Id {External_User_Id，[Key]}。
当用户邀请外部与会者参加会议时，他需要填写表格（输入名字，姓氏，公司名称，一些联系方式），同时他“确认”外部与会者的参与。
现在，我想保留实体Response_Details，但为了获取Attendee_Id，我需要以某种方式在External_Users_Details表中创建此用户。
Response_Details此外部与会者的实体映射如下所示：
@Entity
@IdClass(CResponsePK.class)
@Table(name = "Response_Details")
public class CalendarResponse implements Serializable {
@Id
@Column(name = "Meeting_Id")
private Integer meetingId;
@Id
@Column(name = "Attendee_Id")
private Integer attendeeId;
@Id
@Column(name = "Response_Seq")
private Integer responseSeq;
@Transient //this is transient because I was getting exception that ID has to be the same like in CResponsePK
private Map<String, String> externalAttendee;
//...
}
@Entity
@IdClass(CResponsePK.class)
@Table(name = "Response_Details")
public class CalendarResponse implements Serializable {
@Id
@Column(name = "Meeting_Id")
private Integer meetingId;
@Id
@Column(name = "Attendee_Id")
private Integer attendeeId;
@Id
@Column(name = "Response_Seq")
private Integer responseSeq;
@Transient //this is transient because I was getting exception that ID has to be the same like in CResponsePK
private Map<String, String> externalAttendee;
//...
}
另外我有一个会话定制器：
主要问题是：ClassDescriptor cd = session.getClassDescriptor(CalendarResponse.class);
DirectMapMapping dmm = new DirectMapMapping();
dmm.dontUseIndirection();
dmm.setReferenceTableName("External_Users_Details");
dmm.setDirectKeyFieldName("External_Users_Details.[key]");
dmm.setDirectFieldName("External_Users_Details.[value]");
dmm.setAttributeName("externalAttendee");
dmm.addReferenceKeyFieldName("AttendeeID", "External_User_Id");
cd.addMapping(dmm);