Hello everyone,
I just upgraded to the latest-greatest and a simple
piece of code that has never caused any problems
stopped working:
...
tx.begin();
OQLQuery query = odmg.newOQLQuery();
query.create("select bel from " + Course.class.getName() + " where id = " +
courseID);
DList dlist = (DList) query.execute();
...
OJB complains on the last line with the following message:
[DEFAULT] WARN: Could not found autoincrement attribute for class:
org.apache.ojb.odmg.collections.DListImpl
[org.apache.ojb.odmg.collections.DListImpl] ERROR: Generation of new id
failed
null
java.lang.NullPointerException
at
org.apache.ojb.broker.util.sequence.SequenceManagerHelper.buildSequenceName(
Unknown Source)
at
org.apache.ojb.broker.util.sequence.SequenceManagerHiLoImpl.getUniqueId(Unkn
own Source)
at org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getUniqueId(Unknown
Source)
at
org.apache.ojb.broker.singlevm.DelegatingPersistenceBroker.getUniqueId(Unkno
wn Source)
at org.apache.ojb.odmg.collections.DListImpl.generateNewId(Unknown Source)
at org.apache.ojb.odmg.collections.DListImpl.<init>(Unknown Source)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAcces
sorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstruc
torAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
at java.lang.Class.newInstance0(Class.java:306)
at java.lang.Class.newInstance(Class.java:259)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.getCollectionByQuery(Un
known Source)
at
org.apache.ojb.broker.singlevm.DelegatingPersistenceBroker.getCollectionByQu
ery(Unknown Source)
at org.apache.ojb.odmg.oql.OQLQueryImpl.execute(Unknown Source)
I have no clue why there is a need for the new id being generated...
I also went to see OJB.properties and just for "fun" changed
OqlCollectionClass to
org.apache.ojb.broker.util.ManageableVector but OJB didn't see that change
(everything
was all right with deployment), the error message I got was still about
DListImpl.
I would appreciate any help!
PS: BTW the reason I've crossed over to 0.9.8 was because
Criteria.addPrefetchedRelationship
worked sort of at random in version 0.9.7 - it was always correct database
queries-wise but in many cases I got null
result in response. When I took addPrefetchedRelationship out, the number of
db queries jumped
significantly but at least it worked all the time. I don't know if
PrefetchedRelationship issue
is fixed in 0.9.8, so far it seems to work fine.
Thanks,
Yuriy ZUbarev
__________________________________________________
Do you Yahoo!?
Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
http://mailplus.yahoo.com
--
To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]>
For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
