Ok, switched to buildtime enhancement and getting different problems
now!! Switched to working with a basic java project to resolve all the
problems.....
When attempting to use :-
Account account = em.find(Account.class, "JL");
I get:-
Exception in thread "main" <openjpa-2.1.1-r422266:1148538 nonfatal store
error> org.apache.openjpa.persistence.EntityNotFoundException: Cannot
perform find using null object id.
FailedObject: null [java.lang.String]
at org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:920)
at org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:902)
at
org.apache.openjpa.kernel.DelegatingBroker.find(DelegatingBroker.java:231)
at
org.apache.openjpa.persistence.EntityManagerImpl.find(EntityManagerImpl.java:486)
I have googled and found references by no solutions, tried to step into
the code bt I get lost along the way!! The key is a simple string and
does exist in the DB.
I do, however, notice this message:-
12263 [main] INFO openjpa.Runtime - The Entity
"uk.me.baylishome.homeaccounts.jpa.Account" was enhanced at level "2",
but the current level of enhancement is "1,055,128".
which doesn't sound right. Only OpenJPA 2.1.1 is on the classpath, and
build path, so I don't understand the version match, any ideas?
Getting very frustrated with this :-(
Cheers,
Michael
On 01/17/2012 03:29 PM, Rick Curtis wrote:
Michael -
I'm nearly certain that is your problem. I'd recommend getting build time
enhancement[1] working.
[1] http://openjpa.apache.org/entity-enhancement.html
Thanks,
Rick
On Tue, Jan 17, 2012 at 9:22 AM, Michael Baylis
<maill...@baylishome.me.uk>wrote:
Rick,
As I am developing I am relying on runtime enhancement, however I
have to have
<property name="openjpa.**RuntimeUnenhancedClasses" value="supported"/>
set.
Cheers,
Michael
On 01/17/2012 03:20 PM, Rick Curtis wrote:
Michael -
How are you enhancing your Entities?
I have performed further testing by amending a query to be surrounded by
a begin() and commit() and the commit causes the db records to be updated
even though I know that no updates have taken place.
What fields are being updated? All of them? Are you running with SQL trace
enabled?
On Tue, Jan 17, 2012 at 9:12 AM, Michael Baylis
<maill...@baylishome.me.uk>**wrote:
Hi Folks,
I am experiencing an oddity that I can't google my way out of.
I am running OpenJPA 2.1.1 under Tomcat 7.0.23 by using my own
EntityManager object that I create when the application starts.
What I am noticing is when I update a field in an entity and then commit
the transaction, all entities that I have read so far appear to be dirty
and is updated in the backend database, even though I have not updated
them.
I have performed further testing by amending a query to be surrounded by
a
begin() and commit() and the commit causes the db records to be updated
even though I know that no updates have taken place.
I am obviously missing something in the setup that causes this, but I am
at a loss to what.
If I run a similar query outside of a Tomcat servlet, ie in native Java,
I
don't seem to encounter this problem.
Any help in diagnosing this would be appreciated.
Cheers,
Michael
