Hi,
I just played around with ODMG and tried to execute the following OQL:
"select x from myClass where attribute is not in ( select distinct y.id from
anotherClass )"
During OQLQuery q.create(oql) OJB writes a message to stderr with "unexpected
token (select)" and throws an Exception
Armin wrote:
> Sorry for the delay. I took a few "sabbatical weeks" from OJB
> to spend
> more time with my (newborn) daughter and currently I have
> some problems
> with my eyes, which makes it difficult to work on OJB.
Armin,
congrats to your newborn family member, all the best to all of you
Armin Waibel writes:
> Well, it depends on the community. Currently it seems that only a few
> people are able to (interested in) spend time for OJB. I will
> continue
> my work on OJB.
I would like to say thank you for your efforts. I would also like to offer my
best to support OJB in future
Armin Waibel wrote:
> Since ClassB is an "extent" of ClassA the merge of the repositories
> isn't enough. The merge method is intended to merge/add new classes
> without dependencies to already registered classes.
> You could try to use the ClassDescriptor.addExtent(...) method to
> register a
Hi,
I am trying to find some information regarding metadata merging in the
following scenario:
We have a base application with some classes, db tables and a
repository_user.xml that describes the mapping.
Lets say we have a base class BasePersistentClassA and some classes that are
based which
Bernd "Ingrid" Laengerich wrote:
> OK, I played around a little bit and overwrote the afterStore
> method (empty implementation, however it never gets called!?
> What am I missing? I placed a breakpoint in my code, but it
> never reaches it.
OK, searching around a little bit, I found in JdbcAcc
Hi Armin,
thanks again for your response.
Armin wrote:
> Längerich wrote:
> > Is it sufficient/possible to overwrite the afterStore()
> method of the
> > sequence manager?
>
> Yep it's possible. Assume you want to lookup the
> HLSequence-object for
> the current used (fixed) field and invalid
Hi,
I have some problems with OJB (PB-API) and the sequence manager. I derived a
new sequence manager from the shipped HighLowImpl, that checks for every grab
size with SequenceManagerHelper.getMaxForExtent() for the max id of the field.
This works fine with data added externally, but I have a
Hi Armin,
thank you for your fast response.
Armin Waibel writes:
> You are right, OJB find the object in the cache (because you operate
> with the same objects on different DB's using a shared cache) and
> indicate to update the object instead of insert.
>
> Do you really need a shared cache
Hi,
I have some problems understanding (and using) the concept of the cache when
using multiple databases and determining the object modification level at the
store method.
Assume we have two databases A and B with one being the default and one being
the backup database. Both connections are c
"Ingrid" Längerich writes:
> The code I tried is like this:
OK, I found out that
Iterator it = masterbroker.getReportQueryIteratorByQuery(masterquery);
Collection taids = new Vector();
while (it.hasNext()) {
Object obj = ((Object[])it.next())[0];
taids.add(obj)
Hi,
given is a master data base and a backup data base. All entries are stored to
the master data base and to the backup.
If anything fails (computer crashes) at startup I want to merge the data from
the backup with the data of the master database.
The code I tried is like this:
masterb
Hi,
a criteria with path expressions like in the OJB queries reference guide
example (http://db.apache.org/ojb/docu/guides/query.html#Query+by+Criteria)
does not work for me with broker.deleteByQuery(q).
Using Microsoft SQL Server, the resulting statement of the example
Criteria crit = new Crit
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