[jboss-user] [jBPM] - Empty string process variable on Oracle 9i
Martin Pradny
do-not-reply at jboss.com
Thu Apr 22 04:35:33 EDT 2010
Martin Pradny [http://community.jboss.org/people/mpradny] created the discussion
"Empty string process variable on Oracle 9i"
To view the discussion, visit: http://community.jboss.org/message/538936#538936
--------------------------------------------------------------
I've just moved jbpm 4.3 application form my test environment on MySQL to customer's test server which storing data in Oracle 9i. I process I'm using process variables and test them in decision nodes, eg. is there is something take one path, otherwise take different one.
Problem is that when I store empty string variable in the database is physically stored null. When I try to read it back in EL I get error that variable has not been found.
I have found thread discussing handling null values in EL, but this is slightly different case. If I store "" I want to get "" back.
This should be completely transparent for the jbpm engine.
Am I missing some configuration in hibernate? I don't want to use solution that I would store some fake value instead of empty string e.g. "$$this_is_really_empty" :^0 .
Martin
--------------------------------------------------------------
Reply to this message by going to Community
[http://community.jboss.org/message/538936#538936]
Start a new discussion in jBPM at Community
[http://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2034]
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/jboss-user/attachments/20100422/a723cb70/attachment.html
More information about the jboss-user
mailing list