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http://jira.jboss.com/jira/browse/JBSEAM-3030?page=comments#action_12419077 ]
Mathias Walter commented on JBSEAM-3030:
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Is there any progress on this issue?
I've read the discussion about setRenderFlushMode() and setManualFlushMode() in the
seam-dev mailing list.
I'm using EclipseLink with Seam and set
<core:init debug="true"
transaction-management-enabled="false"/>
<transaction:no-transaction/>
Now, my dataTables won't work anymore and I get the UnsupportedOperationException: You
must use Hibernate to use Manual Flush Mode.
Don't be so hostile to alternate JPA providers when attempt is
made to use manual flush mode
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Key: JBSEAM-3030
URL:
http://jira.jboss.com/jira/browse/JBSEAM-3030
Project: Seam
Issue Type: Bug
Components: Platform interoperability
Affects Versions: 2.0.2.GA, 2.1.0.A1
Reporter: Dan Allen
Assigned To: Dan Allen
Fix For: 2.1.0.BETA1
Attachments: JBSEAM-3030-branch20-v1.txt, JBSEAM-3030-trunk-v1.txt
Original Estimate: 5 minutes
Remaining Estimate: 5 minutes
Right now, alternate JPA providers (such as TopLink) are *unusable* in Seam. This is
because, prior to the render response phase, Seam attempts to put the touched persistence
contexts into manual flush mode. This trickles down to a call to setManualFlushMode() on
the component returned by PersistenceProvider.instance(). The generic implementation
(PersistenceProvider) throws an exception when this method is called.
Throwing an exception here is overkill and hostile. I propose a log warning message,
which would allow the developer to tune the log settings to hush it, or if they really
don't like the log message, they can provide their own implementation. But at least
the damn thing will be usable.
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