| Re: [eclipselink-users] re moving master-detail relation |
You can use @PrivateOwned with existing tables.
If you call remove() though, it should get removed. Do you have another
object that has a relationship to it that has cascade persist? This could
get it to be re-persisted. Ensure that you remove all references to the
object before removing it.
sdt_dev wrote:
>
> I read through a previous discussion on the correct way to remove a
> master-detail relationship using EclipseLink.
>
> Product {
> List<Characteristic> characteristics;
> List<ImageInfo>imageInfos
> }
> Characteristic{
> Color color ;
> }
>
> I am reusing the example , I am doing something like this to remove a
> 'characteristics' and its colors.
> product.getCharacteristics( ).remove(characteristics);
> entityManager.remove(characteristics);
>
> and I am expecting the corresponding entry of 'characteristics' and color
> be
> removed from the db.
> For me this works for some of the ids of 'characteristics' and dosent work
> for higher value of ids. Meaning it sets the foreign_key Product_id to
> null
> in characteristics tables but does not remove the relevant row from
> characteristic table in some cases. And I also checked that this
> characteristic table entry is not used/referenced in any other table. But
> as
> suggested below that sometimes the ORM is not complete and the obejct
> could
> relate to any other db object.
>
> Going with the below suggestion I want to use @PrivateOwned so that
> orphans
> are removed . Now in my case tables are already existing , Can I just add
> the @PrivateOwned annotation and expect it to work ? or what will Ineed to
> do make @PrivateOwned relation to take into effect for that OneToMany
> relation of characteristics in Product entity.
>
> Appreciate any help/pointers towards this... Thanks!
>
>
>
>
-----
http://wiki.eclipse.org/User:James.sutherland.oracle.com James Sutherland
http://www.eclipse.org/eclipselink/
EclipseLink , http://www.oracle.com/technology/products/ias/toplink/
TopLink
Wiki: http://wiki.eclipse.org/EclipseLink EclipseLink ,
http://wiki.oracle.com/page/TopLink TopLink
Forums: http://forums.oracle.com/forums/forum.jspa?forumID=48 TopLink ,
http://www.nabble.com/EclipseLink-f26430.html EclipseLink
Book: http://en.wikibooks.org/wiki/Java_Persistence Java Persistence
Blog: http://java-persistence-performance.blogspot.com/ Java Persistence
Performance
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