[JDO-686] Ability to attach a transient object

• Type: New Feature
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: api, specification, tck
• Assignee: Unassigned
• Reporter: Andy Jefferson
• Created: 10/Sep/11 08:14
• Updated: 10/Sep/11 08:14

Description

As per this thread
http://mail-archives.apache.org/mod_mbox/db-jdo-user/200808.mbox/[e-mail]%3E
the ability to call pm.makePersistent(obj) with a transient object where that transient object has its identity set and where it corresponds to an object in the datastore. Obviously that would only work for application-identity (since it has PK fields, whereas datastore-id has none so "id" not really defined by the object).

One option for datastore-identity would be to have a new method like
pm.makePersistentForIdentity(Object obj, Object id);
This would obviously not allow you to persist by reachability, so whether we just don't permit it for datastore-identity is one option, or alternatively pass in a Map of Object keyed by the identity.