The ID-field of MbiMsgss is of type Integer:
@Entity
| @Table(name="mbi_msgss")
| public class MbiMsgss implements java.io.Serializable
| {
| @Id
| @GeneratedValue(strategy=GenerationType.IDENTITY)
| @Column(name="msgss_serial")
| private java.lang.Integer msgssSerial;
| ...
|
The problem is, that our legacy app fills in a zero instead of a null into the
database table field which works as a foreign key field.
So when I access the entity which has a OneToOne relation (uni-directional) to
the above, I get that exception.
@Entity
| @IdClass(value=MbiMsgdi.PK.class)
| @Table(name="mbi_msgdi")
| public class MbiMsgdi implements java.io.Serializable
| {
| @Id
| @Column(name="bp_id")
| private java.lang.Integer bpId;
|
| @Id
| @Column(name="seq_no")
| private java.lang.Integer seqNo;
| ....
|
| @OneToOne(cascade=CascadeType.ALL,fetch=FetchType.LAZY)
| @JoinColumns({
|
@JoinColumn(name="msgss_serial",referencedColumnName="msgss_serial",insertable=false,updatable=false)
| })
| private MbiMsgss mbiMsgss;
| ...
|
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