Re: ODMG w/oracle problem

Larry Schuler Thu, 13 Mar 2003 05:04:04 -0800

That's the strange part, I don't get a full null pointer exception traceback. As near as I can tell, the call to query.execute() silently returns a null with no other message. the code is straight from the examples (I think I actually cause the NullPointer later by trying to use the "rawResults", so it's just quietly not doing anything?!?)

tx.begin();

             // 2. get an OQLQuery object from the ODMG facade
             OQLQuery query = odmg.newOQLQuery();

             // 3. set the OQL select statement
             query.create(sql);

             // 4. perform the query and store the result
             // in a persistent Collection
             DList rawResults = (DList) query.execute();

Armin Waibel wrote:

Where is the Nullpointer stack trace?
Your snip seems OK.
regards,
Armin
----- Original Message -----
From: "Larry Schuler" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, March 13, 2003 12:52 AM
Subject: ODMG w/oracle problem
Hi,
  I'm just starting to use OJB, so I think this may be configuration
related,

but I can use the PersisetenceBroker to retrieve objects, so I think I
have it

set up correctly. Anyway, when I try to use the ODMG method of access,
OJB
seems to load up ok, but when I try to retrieve objects, I get a
NullPointerException with very little other details, here is a debug
trace:

(What I think may be the problem is the call to "PB.close", why would
that be

called right after opening?) The final message (select) is all that I
receive in

the log. My client app is reporting a failure due to a
NullPointerException in
the server.
Thanks for any help.
--Larry
08:56:20,751 INFO RepositoryPersistor:? - Read connection repository
from file
took 150 ms
08:56:20,821  INFO PersistenceBrokerFactoryDefaultImpl:? - Set default
PBKey: or

g.apache.ojb.broker.PBKey: repository=MAGE, user=magedev,
password=*****

08:56:20,831 DEBUG PersistenceBrokerFactoryDefaultImpl:? -
createPersistenceBrok
er(key) called
08:56:20,831  INFO PersistenceBrokerFactoryDefaultImpl:? - Create new
PB instanc

e for PBKey org.apache.ojb.broker.PBKey: repository=MAGE,
user=magedev, password
=*****, already created persistence broker instances: 0
08:56:20,861 DEBUG SequenceManagerFactory:? - Default sequence manager
class was
  org.apache.ojb.broker.util.sequence.SequenceManagerHighLowImpl
08:56:20,861 DEBUG SequenceManagerFactory:? - create new sequence
manager for br
oker [EMAIL PROTECTED]
08:56:20,861 DEBUG SequenceManagerFactory:? -
Jdbc-Connection-Descriptor 'MAGE'

use sequence manager: class
org.apache.ojb.broker.util.sequence.SequenceManagerH
ighLowImpl
08:56:20,911 DEBUG OJB:? - Set current database
org.apache.ojb.odmg.DatabaseImpl

@811c88 PBKey was org.apache.ojb.broker.PBKey: repository=MAGE,
user=magedev, pa
ssword=*****
08:56:20,911 DEBUG DatabaseImpl:? - Open database using PBKey
org.apache.ojb.bro
ker.PBKey: repository=MAGE, user=magedev, password=*****
08:56:20,911 DEBUG PersistenceBrokerImpl:? - PB.close was called:
org.apache.ojb
[EMAIL PROTECTED]
Debug2
* Mage Manager bound
08:56:34,381 DEBUG TransactionImpl:? - Begin transaction was called on
tx org.ap
[EMAIL PROTECTED], with associated PB null
08:56:34,391 DEBUG OQLQueryImpl:? - create query for query-string:
select * from
ContactImpl
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Re: ODMG w/oracle problem

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