[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2079) Add pre flush event listener holding all the changed entities and the operations on them

[Emmanuel Bernard (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2079?page=comments#action_24509 ] 

Emmanuel Bernard commented on HHH-2079:
---------------------------------------

While sounding like useful idea and fixing some other related issues, this is actually not simple to implement correctly. You could end up doing n pre-flush phases (even if we could arguably limit it to one). Each pre_flush phase really being a virtual flush: this can be a very expensive operation.

> Add pre flush event listener holding all the changed entities and the operations on them
> ----------------------------------------------------------------------------------------
>
>          Key: HHH-2079
>          URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2079
>      Project: Hibernate3
>         Type: New Feature

>   Components: core
>     Versions: 3.2.0.ga
>     Reporter: Shay Banon

>
>
> Is there a chance to add a pre flush event listener. The event listener will have all the entities changes about to be flushed, including the operation about to be performed on them (delete, update, create).
> This issue relates to HHH-1725 and the collection not processed by flush exception. Maybe there would be a chance to load the lazy collections before the actual flush operation using the mentioned listener.

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