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https://issues.apache.org/jira/browse/OPENJPA-1797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12910423#action_12910423
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Kai Feng Zhang commented on OPENJPA-1797:
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Thank you Pinaki.
I made a workaround to solve this issue, that is to remove @MappedSuperclass
from ListFieldDb, and use @Inheritance(strategy=InheritanceType.JOINED) on
ListFieldDb. Then I could store data of email into EmailDb and ListFieldDb.
But anyway this is a problem of @MappedSuperclass, which is subclass entity
data can not be stored with integrity.
> 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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