JPA: several relations

Question

I have much trouble with JPA and the right annotations and tried a lot of annotations and combinations like @JoinColumn, mappedBy and so on, but still get errors. I use EclipseLink (JPA 2.1).

I have the owner class Store:

@Entity
public class Store extends BaseEntity {

    @NotNull
    private String name;

    @NotNull
    @OneToMany
    private List<Price> listPrices;

    @NotNull
    @OneToMany
    private List<BusinessHours> listBusinessHours;

    @NotNull
    @OneToOne
    @JoinColumn(name="store_id")
    private PointCoordinates pointCoordinates;
...
}

This is the class PointCoordinates:

@Entity
public class PointCoordinates extends BaseEntity {

    @NotNull
    private float long;

    @NotNull
    private float lat;

    @OneToOne(mappedBy="pointCoordinates")
    private Store store;
    ...
}

And this is one of the "@OneToMany" classes of 'Store':

@Entity
public class BusinessHours extends BaseEntity {

    private Boolean holiday;

    @ManyToOne
    private Store store;
    ...
}

I thought that it should work, because 'Store' is the owner of 'PointCoordinates' so I have to annotate the attribute private Store store with @OneToOne(mappedBy="pointCoordinates") and on the other side I have to annotate the attribute private PointCoordinates pointCoordinates with @JoinColumn(name="store_id") But I still get the same error:

Error message on Glassfish 4.0

Caused by: javax.persistence.PersistenceException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.0.v20130507-3faac2b): org.eclipse.persistence.exceptions.DatabaseException Internal Exception: java.sql.SQLException: Fehler beim Zuweisen einer Verbindung. Ursache: java.lang.IllegalStateException: Lokale Transaktion enthält bereits 1 Nicht-XA-Ressource: weitere Ressourcen können nicht hinzugefügt werden. Error Code: 0 Call: INSERT INTO POINTCOORDINATES (ID, LAT, LONG) VALUES (?, ?, ?) bind => [3 parameters bound]

Error message on Glassfish 3.1.2.2 (English)

Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.DatabaseException Internal Exception: java.sql.SQLException: Fehler beim Zuweisen einer Verbindung. Ursache: java.lang.IllegalStateException: Local transaction already has 1 non-XA Resource: cannot add more resources. Error Code: 0 Call: INSERT INTO POINTCOORDINATES (ID, LAT, LONG) VALUES (?, ?, ?) bind => [3 parameters bound] Query: InsertObjectQuery(com.company.entities.output.rest.PointCoordinates@3a6a03ea)

Answer 1

I have the answer! I got this error because I annotated PointCoordinates with "@NotNull". This is wrong, you should use the attribute "optional".

The reason for the other error I got "Local transaction already has 1 non-XA Resource: cannot add more resources" happened because I had several different transactions with several Persistence Units.