[eclipselink-users] mapping problem in O2O relation

[Steffen Förster <foerster@xxxxxxxx>]

Hello there,

my EclipseLink tries to use the wrong Column.

The details:

@Entity

@Table(name=”DBOBJECTS”)

@DiscriminatorColumn(name="CLASSNAME")

@Inheritance(strategy=InheritanceType.JOINED)

public class DBObjekt

      .. some members ..

}

@Entity

@Table(name="USER")

@DiscriminatorValue(value="USER")

public class User extends DBObjekt{

      private String username;

}

 

@Entity

@Table(name="LOG")

public class Log{

      @OneToOne(optional=true)

        @JoinColumn(name="USERNAME",referencedColumnName="USERNAME",nullable=true,insertable=false)

      private User user = null;

      .. some members ..

 

Now the problem: If I try to persist a Log Entry EL throws a DescriptorException because it‘s searching for the column DBOBJECTS.username but the information is stored in USER.username. What’s wrong with my mapping? Thanks for your help.

 

 

With kind regards

 

Steffen Förster

 

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