[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-5814) set entity id for auto-generated id annotation
Dave (JIRA)
noreply at atlassian.com
Thu Dec 30 22:38:05 EST 2010
[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5814?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=39452#action_39452 ]
Dave commented on HHH-5814:
---------------------------
need an API to disable/enable id generation on SessionFactory or EntityManagerFactory
> set entity id for auto-generated id annotation
> ----------------------------------------------
>
> Key: HHH-5814
> URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5814
> Project: Hibernate Core
> Issue Type: Bug
> Environment: ALL
> Reporter: Dave
>
> We need to copy data from one data source to another, and need keep same id to keep entity relations.
> 1. fetch entities from data source A
> 2. evict entities from session, set version to null, keep id not changed.
> 3. create entities in data source B.
> for @GeneratedValue(strategy = GenerationType.AUTO), entity id is reset by Hibernate.
> But for auto increment id in mysql, it can be set manually and AUTO_INCREMENT is automatically adjusted.
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