Hi, all
I have a problem about @JoinColumn.
Status.java
@Entity
| public class Status implements Serializable {
| @Id
| private String Status_ID;
|
| private String Status_Msg;
|
| public String getStatus_ID() {
| return Status_ID;
| }
|
| public void setStatus_ID(String status_id) {
| Status_ID = status_id;
| }
|
| public String getStatus_Msg() {
| return Status_Msg;
| }
|
| public void setStatus_Msg(String status_msg) {
| Status_Msg = status_msg;
| }
| }
Table Status:
Status_ID Status_Msg
| ----------- --------------
| O Open
| C Close
| F Fatal
Table Status have three lines data, unallowed insert other data.
Light.java
@Entity
| public class Light implements Serializable {
| @Id
| private String Light_Name;
|
| @ManyToOne
| @JoinColumn(name = "Light_Status", referencedColumnName="Status_ID")
| private Status LightStatus;
|
| public String getLight_Name() {
| return Light_Name;
| }
|
| public void setLight_Name(String light_name) {
| Light_Name = light_name;
| }
|
| public Status getLightStatus() {
| return LightStatus;
| }
|
| public void setLightStatus(Status lightstatus) {
| LightStatus = lightstatus;
| }
| }
Table Light
Light_Name Light_Status
| -------------- --------------
| light1 O
| light2 O
| light3 C
| light4 F
Table Light Column Light_Status, auto create in @JoinColumn, not have
setter/getter. How to do when i want to chang "light2" to Close(change
Light_Status to "C").
another question:
Table Desk:
Desk_Zone Desk_ID
| ------------- -----------
| A 01
| B 09
Table ChkAllo
Desk_Code
| -------------
| A01
| B09
How to create the OneToOne relationship about Desk.Desk_Zone + Desk.Desk_ID =
ChkAllo.Desk_Code?
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