[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-5911) Version number incremented even if all changes of the entity were reverted by an interceptor

[Norbert Sándor (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=39975#action_39975 ] 

Norbert Sándor commented on HHH-5911:
-------------------------------------

Can we expect this issue to be fixed soon, or should we find a workaround?

> Version number incremented even if all changes of the entity were reverted by an interceptor
> --------------------------------------------------------------------------------------------
>
>                 Key: HHH-5911
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5911
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.5.0-Final, 3.6.0
>         Environment: win xp, java 6
>            Reporter: Norbert Sándor
>         Attachments: testcase-hhh-5911.zip
>
>
> In our application we have a Hibernate interceptor which may revert all changes made to an entity in the onFlushDirty() method, based on various conditions. After doing so, our onFlushDirty() implementation returns true indicating that the currentState array has changed.
> It works as expected in most cases but we experience the following if all property values are reverted:
> - the entity is not updated in the database - as expected
> - the version number of the entity is still incremented - this means that the database and the entity will not be in sync after flush
> I investigated the problem and found the following code in DefaultFlushEntityEventListener.isVersionIncrementRequired():
> Code:
>    private boolean isVersionIncrementRequired(
>          FlushEntityEvent event,
>          EntityEntry entry,
>          EntityPersister persister,
>          int[] dirtyProperties
>    ) {
>       final boolean isVersionIncrementRequired = entry.getStatus()!=Status.DELETED && (
>             dirtyProperties==null ||
>             Versioning.isVersionIncrementRequired(
>                   dirtyProperties,
>                   event.hasDirtyCollection(),
>                   persister.getPropertyVersionability()
>                )
>          );
>       return isVersionIncrementRequired;
>    }
> In our case dirtyProperties is null (because all dirty properties were reverted by the interceptor), so isVersionIncrementRequired() will return true. It means that the version is incremented even if no properties were changed and no database update is performed when flushing.
> Thanks for your help in advance!
> Norbi

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