[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2650) Allow for an entire Session to be readOnly, add Session.setReadOnly() method

[Max Rydahl Andersen (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_27101 ] 

Max Rydahl Andersen commented on HHH-2650:
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if the patch is done properly and with good testcases then I would say it's fairly high since it is a usefull construct.

> Allow for an entire Session to be readOnly, add Session.setReadOnly() method
> ----------------------------------------------------------------------------
>
>                 Key: HHH-2650
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2650
>             Project: Hibernate3
>          Issue Type: Sub-task
>          Components: core
>         Environment: Any
>            Reporter: Gunther Schadow
>   Original Estimate: 1 day
>  Remaining Estimate: 1 day
>
> There is a need for read-only applications to avoid any snapshoting of objects if that application never intends to make updates. Such readOnly mode would be the mode in which any object gets loaded into the session, whether directly or from lazy collections. The use case is reporting applications which want to make sure that they don't even accidentally make updates AND that want to save the time it takes to create snapshots because they read through a lot of data very quickly. Our own need is that we have a rich client where we hold read only sessions open for browsing and where we spawn off any change transactions into separate Sessions. Even in change transactions we like to have all objects locked from even accidental updates unless they are explicitly unlocked.
> A Session.setReadOnly() method would be ideal to do this. It does not appear very hard to make that improvement. We would do it ourselves even if we had some idea if (and under which criteria) our modifications would have a chance to make it into future versions of Hibernate?

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