Grokbase Groups Cayenne dev May 2007
FAQ
ThreadLocal bound DataContext is not obtainable in a multi-thread for a request environment such as ZK
------------------------------------------------------------------------------------------------------

Key: CAY-791
URL: https://issues.apache.org/cayenne/browse/CAY-791
Project: Cayenne
Issue Type: Bug
Components: Cayenne Core Library
Affects Versions: 2.0 [STABLE], 3.0
Environment: ZK Ajax framework and any other multi-thread per request environment
Reporter: Steve Wells
Assigned To: Andrus Adamchik


Having hit my first roadblock now is getting DataContext, as each ZK request runs in a separate thread (see: http://www.zkoss.org/smalltalks/zkacegi/zkacegi.dsp ) I think this is the problem why I can't get DC with WebApplicationContextFilter and DataContext.getThreadDataContext (). I get "IllegalStateException: Current thread has no bound DataContext."

Looking into src for DataContext I see this comment // TODO: Andrus, 11/7/2005 - should we use InheritableThreadLocal instead?

So I subclassed DataContext and overrode the :
ThreadLocal threadDataContext

to be

InheritableThreadLocal threadDataContext

changed WebApplicationContextFilter to call my subclassed DataContext and it works.

HOWEVER! This possible solution may be dangerous and currently needs more investigation.


--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.

Search Discussions

Related Discussions

Discussion Navigation
viewthread | post
Discussion Overview
groupdev @
categoriescayenne
postedMay 21, '07 at 8:33a
activeMay 21, '07 at 8:33a
posts1
users1
websitecayenne.apache.org

1 user in discussion

Anonymous: 1 post

People

Translate

site design / logo © 2022 Grokbase