Hi,
I have a simple OQLQuery that fetches all records from a table, and before
reading the results I want to read the size of the results, here is a code
snipet:
try
{
db = jdo.getDatabase();
db.begin();
oql = db.getOQLQuery("SELECT c FROM Table c");
qry = oql.execute();
if(logger.isDebugEnabled())
logger.debug("myMethod/size: " + qry.size());
db.commit();
db.close();
}
catch(Exception e)
{
logger.error("myMethod", e);
}
return qry;
I get the following exception, because of calling the qry.size() while trying
to log it. logger is an instance of log4j Logger.
Here is the exception below:
org.exolab.castor.jdo.PersistenceException: Invalid operation for forward only
resultset : last
at
org.exolab.castor.jdo.engine.SQLEngine$SQLQuery.size(SQLEngine.java:1735)
at org.exolab.castor.persist.QueryResults.size(QueryResults.java:253)
at
org.exolab.castor.jdo.engine.OQLQueryImpl$OQLEnumeration.size(OQLQueryImpl.java:568)
at si.hermes.mojplanet.core.DBManager.getChannels(DBManager.java:49)
at TestDBM.main(TestDBM.java:21)
As far as I can recall with 0.9.5.3 this was OK to do. Has something changed?
This is the 0.9.6, I've downloaded it yesterday.
Regards,
Emir
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