In ejb-3_0-pfd-spec-persistence.pdf
anonymous wrote : 9.1.31 PrimaryKeyJoinColumns Annotation
| @Target({TYPE}) @Retention(RUNTIME)
| public @interface PrimaryKeyJoinColumns {
| PrimaryKeyJoinColumn[] value();
| }
It annotated @Target({TYPE}) , not @Target({TYPE,METHOD}). So, it means
@PrimaryKeyJoinColumns disallowed annotated Method.
Example 2: OneToOne relationship between Employee and EmployeeInfo
classespublic class EmpPK {
| public Integer id;
| public String name;
| }
| @Entity
| @IdClass(com.acme.EmpPK.class)
| public class Employee {
| @Id Integer id;
| @Id String name;
| @OneToOne
| @PrimaryKeyJoinColumns ({
| @PrimaryKeyJoinColumn(name="ID", referencedColumn-
| Name="EMP_ID"),
| @PrimaryKeyJoinColumn(name="NAME", referencedColumn-
| Name="EMP_NAME")})
| EmployeeInfo info;
| ...
| }
| @Entity
| @IdClass(com.acme.EmpPK.class)
| public class EmployeeInfo {
| @Id @Column(name="EMP_ID")
| Integer id;
| @Id @Column(name="EMP_NAME")
| String name;
| ...
| }
but, in it's example, it can annotated Method. so i am babel.
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