It's generally considered more polite to continue the original thread
you start, answering requests for more information, rather than to
appear to ignore responses and start new threads on the same topic.
In this case I realize you may be having problems with your mail
provider.
On Mar 31, 2008, at 1:25 PM, luoluo wrote:
Hi,
I have an application using JPA with hibernate. I changed the
persistence
provider to hibernate and trying to using db-pools. It works
perfectly fine
in Geronimo 2.02. But when I tried to deploy it to Geronimo 2.1. It
throw
out an exception with can not find JNDI entry for the data source when
Geronimo try to start the application.
in persistence.xml, I use below to refer the data source:
<persistence-unit name="CMWS">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<properties>
<property name="hibernate.archive.autodetection"
value="class" />
<property name="hibernate.connection.datasource"
value="java:/comp/env/jdbc/CmwsDS" />
...
The data source is created and defined in web.xml too.
I found the different between 2.0.2 and 2.1. In 2.0.2, the entity
manager
was initialized when first time db-access. At that time, the data
source is
already be registered in JNDI as /comp/env/jdbc/...DS.
In 2.1, Geronimo try to initialize the entity manager when starting
the
application. The sequence is wrong. It tried to find the data
source before
the reference in Web.xml been registered. So the JNDI entry not find
exception was thrown out.
Is that a bug of Geronimo 2.1? Is there any way to work around this
issue in
2.1?
I recommend you use the jpa standard way of specifying datasources
for jpa (using the jta-datasource and non-jta-datasource elements)
rather than this hibernate specific way using a hibernate specific
property. Since in geronimo the jpa standard way does not rely on
jndi, you will not have this problem.
Can you provide a stack trace of the problem you are seeing? That
would help figure out what is causing the earlier initialization.
thanks
david jencks
Thanks!
Bill
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