Hello,

Any expert can teach me how can I define the JPA annotation for OneToOne mapping?


The following is the database table definition:

DOCUMENT
========
ID number(38) primary key
NAME varchar(100)


DOCUMENT_DETAIL
===============
ID number(38) primary key
DOCUMENT_ID number(38)
SUBJECT varchar(100)



@Entity
@Table(name="DOCUMENT")
public class Document {
private long id;
private String name;


// WHAT is the annotation here
private DocumentDetail detail;
}


@Entity
@Table(name="DOCUMENT_DETAIL")
public class DocumentDetail {

private long id;
private String subject;


// WHAT is the annotation here
private Document document;

}


Please teach me, thanks!

http://docs.jboss.org/hibernate/orm/4.2/manual/en-US/html/ch05.html#d5e3628