Hi,
Some code examples to reproduce the count-query bug in combination with
an IN-clause. These are excerpts from our own test suite so they use
some of hour domain classes and properties of these classes, so you have
to modify this example using the domain classes from the OJB testsuite
to run them in there.
(below: the 'pb' object is a PersistenceBroker instance)
The first example is a query retrieving a collection, that one works!
Vector v = new Vector();
v.add(new String("PAS/104"));
v.add(new String("PAS/105"));
v.add(new String("PAS/106"));
Criteria crit_in = new Criteria().addIn("workOrderNr", v);
Query in_query = QueryFactory.newQuery(Permit.class,
crit_in, true);
Collection c = pb.getCollectionByQuery(in_query) ;
The second example builds the same query but executes a count, that one
crashes:
Vector v = new Vector();
v.add(new String("PAS/104"));
v.add(new String("PAS/105"));
v.add(new String("PAS/106"));
Criteria crit_in = new Criteria().addIn("workOrderNr", v);
Query in_query = QueryFactory.newQuery(Permit.class,
crit_in, true);
int count = pb.getCount(in_query);
Some errormessage feedback is:
* SQLException during execution of sql-statement:
* sql statement: select count(*) from (SELECT DISTINCT A0.ID FROM
IBANX_PERMIT A0 WHERE null ) ojb_enc
* Exception message: Not a condition in statement [select count(*) from
(SELECT DISTINCT A0.ID FROM IBANX_PERMIT A0 WHERE null ) ojb_enc]
* Vendor error code: -106
* SQL state code: S1000
**
The stacktrace is:
java.sql.SQLException: Not a condition in statement [select count(*)
from (SELECT DISTINCT A0.ID FROM IBANX_PERMIT A0 WHERE null ) ojb_enc]
at org.hsqldb.jdbc.Util.throwError(Unknown Source)
at org.hsqldb.jdbc.jdbcPreparedStatement.executeQuery(Unknown
Source)
at
org.apache.ojb.broker.accesslayer.JdbcAccessImpl.executeQuery(Unknown
Source)
at
org.apache.ojb.broker.accesslayer.RsQueryObject.performQuery(Unknown
Source)
at org.apache.ojb.broker.accesslayer.RsIterator.<init>(Unknown
Source)
at
org.apache.ojb.broker.accesslayer.ReportQueryRsIterator.<init>(Unknown
Source)
at
org.apache.ojb.broker.core.ReportRsIteratorFactoryImpl.createRsIterator(
Unknown Source)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.getRsIteratorFromQuery(
Unknown Source)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.getReportQueryIteratorF
romQuery(Unknown Source)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.getReportQueryIteratorB
yQuery(Unknown Source)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.getCount(Unknown
Source)
at
org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCount(Unknown
Source)
at
org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCount(Unknown
Source)
at
ibanx.persistence.test.OJBTest.testCountQueryCriteriaInOJB(OJBTest.java:
306)
It is obvious that the count-query lost the where clauses!
Hope this helps.
Roger Janssen
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