[hibernate-issues] [Hibernate-JIRA] Resolved: (HHH-2010) getForUpdateString is not correct in DB2Dialect; session.lock doesn't work as expected.

[Diego Pires Plentz (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2010?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Diego Pires Plentz resolved HHH-2010.
-------------------------------------

      Assignee: Diego Pires Plentz
    Resolution: Duplicate

> getForUpdateString is not correct in DB2Dialect; session.lock doesn't work as expected.
> ---------------------------------------------------------------------------------------
>
>                 Key: HHH-2010
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2010
>             Project: Hibernate3
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.1.3, 3.2.0.cr3
>         Environment: 3.1.3, DB2
>            Reporter: Lari Hotari
>            Assignee: Diego Pires Plentz
>
> The correct getForUpdateString for DB2 should be "for update with rr"
> see:
> http://opensource.atlassian.com/projects/hibernate/browse/HB-1032
> DB2 will release all locks created in a result set if the isolation level is lower than TRANSACTION_SERIALIZABLE (RR in DB2). 
> Locks and concurrency control in DB2:
> http://publib.boulder.ibm.com/infocenter/db2help/topic/com.ibm.db2.udb.doc/admin/c0005266.htm
> "
> The duration of row locking varies with the isolation level being used:
>     * UR scans: No row locks are held unless row data is changing.
>     * CS scans: Row locks are only held while the cursor is positioned on the row.
>     * RS scans: Only qualifying row locks are held for the duration of the transaction.
>     * RR scans: All row locks are held for the duration of the transaction.
> " 

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira