[jira] Commented: (OPENJPA-1797) Can not persist subclass entity with its full data, if this subclass entity has ManyToOne to another entity

["Pinaki Poddar (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OPENJPA-1797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12909944#action_12909944 ] 

Pinaki Poddar commented on OPENJPA-1797:
----------------------------------------

> protected List<ListField> emails = new ArrayList<ListField>(); 

ListField is an interface and ListFieldDB is the implementation. Try

    protected List<ListFieldDB> emails = new ArrayList<ListFieldDB>(); 




> Can not persist subclass entity with its full data, if this subclass entity has ManyToOne to another entity
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: OPENJPA-1797
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1797
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: jpa
>    Affects Versions: 2.0.1
>            Reporter: Kai Feng Zhang
>         Attachments: EmailDb.java, ListFieldDb.java, PersonDb.java
>
>
> A Person entity class, which has such emails field:
> @OneToMany(targetEntity = EmailDb.class, mappedBy = "person", cascade = CascadeType.ALL)
>   protected List<ListField> emails = new ArrayList<ListField>();
> While Email entity is subclass of @MappedSuperclass ListFieldDb.
> Then I create email and add to person:
> EmailDb email = new EmailDb();
> email.setValue(targetAddress);
> email.setPrimary(false);
> email.setType("emailType");
> person.addEmail(emial);
> em.persist(person);
> But what I see from console about email table changes is: INSERT INTO email (oid, person_id) VALUES (?, ?), and other data lost, especially the map key 'person_id' to person table.
> Not sure if I am using something wrong? or this is a known issue?
> I pasted source code files for entity relationship reference. Thanks.

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